diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..8b9312d
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2008 Google Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..c476e5f
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,2 @@
+SUBDIRS = src
+dist_doc_DATA = COPYING stressapptest.1
\ No newline at end of file
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 0000000..05dc740
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,628 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+target_triplet = @target@
+subdir = .
+DIST_COMMON = $(am__configure_deps) $(dist_doc_DATA) \
+	$(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+	$(top_srcdir)/configure COPYING config.guess config.sub \
+	depcomp install-sh missing
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
+ configure.lineno config.status.lineno
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/src/stressapptest_config.h
+CONFIG_CLEAN_FILES =
+SOURCES =
+DIST_SOURCES =
+RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
+	html-recursive info-recursive install-data-recursive \
+	install-dvi-recursive install-exec-recursive \
+	install-html-recursive install-info-recursive \
+	install-pdf-recursive install-ps-recursive install-recursive \
+	installcheck-recursive installdirs-recursive pdf-recursive \
+	ps-recursive uninstall-recursive
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(docdir)"
+dist_docDATA_INSTALL = $(INSTALL_DATA)
+DATA = $(dist_doc_DATA)
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+ETAGS = etags
+CTAGS = ctags
+DIST_SUBDIRS = $(SUBDIRS)
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+distdir = $(PACKAGE)-$(VERSION)
+top_distdir = $(distdir)
+am__remove_distdir = \
+  { test ! -d $(distdir) \
+    || { find $(distdir) -type d ! -perm -200 -exec chmod u+w {} ';' \
+         && rm -fr $(distdir); }; }
+DIST_ARCHIVES = $(distdir).tar.gz
+GZIP_ENV = --best
+distuninstallcheck_listfiles = find . -type f -print
+distcleancheck_listfiles = find . -type f -print
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CXX = @CXX@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LDFLAGS = @LDFLAGS@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LTLIBOBJS = @LTLIBOBJS@
+MAKEINFO = @MAKEINFO@
+MKDIR_P = @MKDIR_P@
+OBJEXT = @OBJEXT@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target = @target@
+target_alias = @target_alias@
+target_cpu = @target_cpu@
+target_os = @target_os@
+target_vendor = @target_vendor@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+SUBDIRS = src
+dist_doc_DATA = COPYING stressapptest.1
+all: all-recursive
+
+.SUFFIXES:
+am--refresh:
+	@:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      echo ' cd $(srcdir) && $(AUTOMAKE) --foreign '; \
+	      cd $(srcdir) && $(AUTOMAKE) --foreign  \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign  Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign  Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    echo ' $(SHELL) ./config.status'; \
+	    $(SHELL) ./config.status;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	$(SHELL) ./config.status --recheck
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(srcdir) && $(AUTOCONF)
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
+install-dist_docDATA: $(dist_doc_DATA)
+	@$(NORMAL_INSTALL)
+	test -z "$(docdir)" || $(MKDIR_P) "$(DESTDIR)$(docdir)"
+	@list='$(dist_doc_DATA)'; for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  f=$(am__strip_dir) \
+	  echo " $(dist_docDATA_INSTALL) '$$d$$p' '$(DESTDIR)$(docdir)/$$f'"; \
+	  $(dist_docDATA_INSTALL) "$$d$$p" "$(DESTDIR)$(docdir)/$$f"; \
+	done
+
+uninstall-dist_docDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_doc_DATA)'; for p in $$list; do \
+	  f=$(am__strip_dir) \
+	  echo " rm -f '$(DESTDIR)$(docdir)/$$f'"; \
+	  rm -f "$(DESTDIR)$(docdir)/$$f"; \
+	done
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run `make' without going through this Makefile.
+# To change the values of `make' variables: instead of editing Makefiles,
+# (1) if the variable is set in `config.status', edit `config.status'
+#     (which will cause the Makefiles to be regenerated when you run `make');
+# (2) otherwise, pass the desired values on the `make' command line.
+$(RECURSIVE_TARGETS):
+	@failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+$(RECURSIVE_CLEAN_TARGETS):
+	@failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	rev=''; for subdir in $$list; do \
+	  if test "$$subdir" = "."; then :; else \
+	    rev="$$subdir $$rev"; \
+	  fi; \
+	done; \
+	rev="$$rev ."; \
+	target=`echo $@ | sed s/-recursive//`; \
+	for subdir in $$rev; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done && test -z "$$fail"
+tags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) tags); \
+	done
+ctags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) ctags); \
+	done
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS: tags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      tags="$$tags $$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	    $$tags $$unique; \
+	fi
+ctags: CTAGS
+CTAGS: ctags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	$(am__remove_distdir)
+	test -d $(distdir) || mkdir $(distdir)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+	list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test -d "$(distdir)/$$subdir" \
+	    || $(MKDIR_P) "$(distdir)/$$subdir" \
+	    || exit 1; \
+	    distdir=`$(am__cd) $(distdir) && pwd`; \
+	    top_distdir=`$(am__cd) $(top_distdir) && pwd`; \
+	    (cd $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$top_distdir" \
+	        distdir="$$distdir/$$subdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+	-find $(distdir) -type d ! -perm -777 -exec chmod a+rwx {} \; -o \
+	  ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
+	|| chmod -R a+r $(distdir)
+dist-gzip: distdir
+	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	$(am__remove_distdir)
+
+dist-bzip2: distdir
+	tardir=$(distdir) && $(am__tar) | bzip2 -9 -c >$(distdir).tar.bz2
+	$(am__remove_distdir)
+
+dist-lzma: distdir
+	tardir=$(distdir) && $(am__tar) | lzma -9 -c >$(distdir).tar.lzma
+	$(am__remove_distdir)
+
+dist-tarZ: distdir
+	tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
+	$(am__remove_distdir)
+
+dist-shar: distdir
+	shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+	$(am__remove_distdir)
+
+dist-zip: distdir
+	-rm -f $(distdir).zip
+	zip -rq $(distdir).zip $(distdir)
+	$(am__remove_distdir)
+
+dist dist-all: distdir
+	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	$(am__remove_distdir)
+
+# This target untars the dist file and tries a VPATH configuration.  Then
+# it guarantees that the distribution is self-contained by making another
+# tarfile.
+distcheck: dist
+	case '$(DIST_ARCHIVES)' in \
+	*.tar.gz*) \
+	  GZIP=$(GZIP_ENV) gunzip -c $(distdir).tar.gz | $(am__untar) ;;\
+	*.tar.bz2*) \
+	  bunzip2 -c $(distdir).tar.bz2 | $(am__untar) ;;\
+	*.tar.lzma*) \
+	  unlzma -c $(distdir).tar.lzma | $(am__untar) ;;\
+	*.tar.Z*) \
+	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
+	*.shar.gz*) \
+	  GZIP=$(GZIP_ENV) gunzip -c $(distdir).shar.gz | unshar ;;\
+	*.zip*) \
+	  unzip $(distdir).zip ;;\
+	esac
+	chmod -R a-w $(distdir); chmod a+w $(distdir)
+	mkdir $(distdir)/_build
+	mkdir $(distdir)/_inst
+	chmod a-w $(distdir)
+	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
+	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
+	  && cd $(distdir)/_build \
+	  && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
+	  && $(MAKE) $(AM_MAKEFLAGS) check \
+	  && $(MAKE) $(AM_MAKEFLAGS) install \
+	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
+	        distuninstallcheck \
+	  && chmod -R a-w "$$dc_install_base" \
+	  && ({ \
+	       (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
+	  && rm -rf "$$dc_destdir" \
+	  && $(MAKE) $(AM_MAKEFLAGS) dist \
+	  && rm -rf $(DIST_ARCHIVES) \
+	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck
+	$(am__remove_distdir)
+	@(echo "$(distdir) archives ready for distribution: "; \
+	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
+	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
+distuninstallcheck:
+	@cd $(distuninstallcheck_dir) \
+	&& test `$(distuninstallcheck_listfiles) | wc -l` -le 1 \
+	   || { echo "ERROR: files left after uninstall:" ; \
+	        if test -n "$(DESTDIR)"; then \
+	          echo "  (check DESTDIR support)"; \
+	        fi ; \
+	        $(distuninstallcheck_listfiles) ; \
+	        exit 1; } >&2
+distcleancheck: distclean
+	@if test '$(srcdir)' = . ; then \
+	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+	  exit 1 ; \
+	fi
+	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+	  || { echo "ERROR: files left in build directory after distclean:" ; \
+	       $(distcleancheck_listfiles) ; \
+	       exit 1; } >&2
+check-am: all-am
+check: check-recursive
+all-am: Makefile $(DATA)
+installdirs: installdirs-recursive
+installdirs-am:
+	for dir in "$(DESTDIR)$(docdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+info: info-recursive
+
+info-am:
+
+install-data-am: install-dist_docDATA
+
+install-dvi: install-dvi-recursive
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-info: install-info-recursive
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-ps: install-ps-recursive
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -rf $(top_srcdir)/autom4te.cache
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am: uninstall-dist_docDATA
+
+.MAKE: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) install-am \
+	install-strip
+
+.PHONY: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) CTAGS GTAGS \
+	all all-am am--refresh check check-am clean clean-generic \
+	ctags ctags-recursive dist dist-all dist-bzip2 dist-gzip \
+	dist-lzma dist-shar dist-tarZ dist-zip distcheck distclean \
+	distclean-generic distclean-tags distcleancheck distdir \
+	distuninstallcheck dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am \
+	install-dist_docDATA install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs installdirs-am maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
+	pdf-am ps ps-am tags tags-recursive uninstall uninstall-am \
+	uninstall-dist_docDATA
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/aclocal.m4 b/aclocal.m4
new file mode 100644
index 0000000..eb3b99a
--- /dev/null
+++ b/aclocal.m4
@@ -0,0 +1,868 @@
+# generated automatically by aclocal 1.10.1 -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+m4_ifndef([AC_AUTOCONF_VERSION],
+  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+m4_if(AC_AUTOCONF_VERSION, [2.61],,
+[m4_warning([this file was generated for autoconf 2.61.
+You have another version of autoconf.  It may work, but is not guaranteed to.
+If you have problems, you may need to regenerate the build system entirely.
+To do so, use the procedure documented by the package, typically `autoreconf'.])])
+
+# Copyright (C) 2002, 2003, 2005, 2006, 2007  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_AUTOMAKE_VERSION(VERSION)
+# ----------------------------
+# Automake X.Y traces this macro to ensure aclocal.m4 has been
+# generated from the m4 files accompanying Automake X.Y.
+# (This private macro should not be called outside this file.)
+AC_DEFUN([AM_AUTOMAKE_VERSION],
+[am__api_version='1.10'
+dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
+dnl require some minimum version.  Point them to the right macro.
+m4_if([$1], [1.10.1], [],
+      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
+])
+
+# _AM_AUTOCONF_VERSION(VERSION)
+# -----------------------------
+# aclocal traces this macro to find the Autoconf version.
+# This is a private macro too.  Using m4_define simplifies
+# the logic in aclocal, which can simply ignore this definition.
+m4_define([_AM_AUTOCONF_VERSION], [])
+
+# AM_SET_CURRENT_AUTOMAKE_VERSION
+# -------------------------------
+# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
+# This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
+AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
+[AM_AUTOMAKE_VERSION([1.10.1])dnl
+m4_ifndef([AC_AUTOCONF_VERSION],
+  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+_AM_AUTOCONF_VERSION(AC_AUTOCONF_VERSION)])
+
+# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
+
+# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
+# $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
+# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
+#
+# Of course, Automake must honor this variable whenever it calls a
+# tool from the auxiliary directory.  The problem is that $srcdir (and
+# therefore $ac_aux_dir as well) can be either absolute or relative,
+# depending on how configure is run.  This is pretty annoying, since
+# it makes $ac_aux_dir quite unusable in subdirectories: in the top
+# source directory, any form will work fine, but in subdirectories a
+# relative path needs to be adjusted first.
+#
+# $ac_aux_dir/missing
+#    fails when called from a subdirectory if $ac_aux_dir is relative
+# $top_srcdir/$ac_aux_dir/missing
+#    fails if $ac_aux_dir is absolute,
+#    fails when called from a subdirectory in a VPATH build with
+#          a relative $ac_aux_dir
+#
+# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
+# are both prefixed by $srcdir.  In an in-source build this is usually
+# harmless because $srcdir is `.', but things will broke when you
+# start a VPATH build or use an absolute $srcdir.
+#
+# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
+# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
+#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
+# and then we would define $MISSING as
+#   MISSING="\${SHELL} $am_aux_dir/missing"
+# This will work as long as MISSING is not called from configure, because
+# unfortunately $(top_srcdir) has no meaning in configure.
+# However there are other variables, like CC, which are often used in
+# configure, and could therefore not use this "fixed" $ac_aux_dir.
+#
+# Another solution, used here, is to always expand $ac_aux_dir to an
+# absolute PATH.  The drawback is that using absolute paths prevent a
+# configured tree to be moved without reconfiguration.
+
+AC_DEFUN([AM_AUX_DIR_EXPAND],
+[dnl Rely on autoconf to set up CDPATH properly.
+AC_PREREQ([2.50])dnl
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+])
+
+# AM_CONDITIONAL                                            -*- Autoconf -*-
+
+# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 8
+
+# AM_CONDITIONAL(NAME, SHELL-CONDITION)
+# -------------------------------------
+# Define a conditional.
+AC_DEFUN([AM_CONDITIONAL],
+[AC_PREREQ(2.52)dnl
+ ifelse([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
+	[$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
+AC_SUBST([$1_TRUE])dnl
+AC_SUBST([$1_FALSE])dnl
+_AM_SUBST_NOTMAKE([$1_TRUE])dnl
+_AM_SUBST_NOTMAKE([$1_FALSE])dnl
+if $2; then
+  $1_TRUE=
+  $1_FALSE='#'
+else
+  $1_TRUE='#'
+  $1_FALSE=
+fi
+AC_CONFIG_COMMANDS_PRE(
+[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
+  AC_MSG_ERROR([[conditional "$1" was never defined.
+Usually this means the macro was only invoked conditionally.]])
+fi])])
+
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 9
+
+# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# written in clear, in which case automake, when reading aclocal.m4,
+# will think it sees a *use*, and therefore will trigger all it's
+# C support machinery.  Also note that it means that autoscan, seeing
+# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
+
+
+# _AM_DEPENDENCIES(NAME)
+# ----------------------
+# See how the compiler implements dependency checking.
+# NAME is "CC", "CXX", "GCJ", or "OBJC".
+# We try a few techniques and use that to set a single cache variable.
+#
+# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
+# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
+# dependency, and given that the user is not expected to run this macro,
+# just rely on AC_PROG_CC.
+AC_DEFUN([_AM_DEPENDENCIES],
+[AC_REQUIRE([AM_SET_DEPDIR])dnl
+AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
+AC_REQUIRE([AM_MAKE_INCLUDE])dnl
+AC_REQUIRE([AM_DEP_TRACK])dnl
+
+ifelse([$1], CC,   [depcc="$CC"   am_compiler_list=],
+       [$1], CXX,  [depcc="$CXX"  am_compiler_list=],
+       [$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
+       [$1], UPC,  [depcc="$UPC"  am_compiler_list=],
+       [$1], GCJ,  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
+                   [depcc="$$1"   am_compiler_list=])
+
+AC_CACHE_CHECK([dependency style of $depcc],
+               [am_cv_$1_dependencies_compiler_type],
+[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_$1_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
+  fi
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+      # Solaris 8's {/usr,}/bin/sh.
+      touch sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    case $depmode in
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    none) break ;;
+    esac
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.
+    if depmode=$depmode \
+       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_$1_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_$1_dependencies_compiler_type=none
+fi
+])
+AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
+AM_CONDITIONAL([am__fastdep$1], [
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
+])
+
+
+# AM_SET_DEPDIR
+# -------------
+# Choose a directory name for dependency files.
+# This macro is AC_REQUIREd in _AM_DEPENDENCIES
+AC_DEFUN([AM_SET_DEPDIR],
+[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
+AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
+])
+
+
+# AM_DEP_TRACK
+# ------------
+AC_DEFUN([AM_DEP_TRACK],
+[AC_ARG_ENABLE(dependency-tracking,
+[  --disable-dependency-tracking  speeds up one-time build
+  --enable-dependency-tracking   do not reject slow dependency extractors])
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+fi
+AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
+AC_SUBST([AMDEPBACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
+])
+
+# Generate code to set up dependency tracking.              -*- Autoconf -*-
+
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+#serial 3
+
+# _AM_OUTPUT_DEPENDENCY_COMMANDS
+# ------------------------------
+AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
+[for mf in $CONFIG_FILES; do
+  # Strip MF so we end up with the name of the file.
+  mf=`echo "$mf" | sed -e 's/:.*$//'`
+  # Check whether this is an Automake generated Makefile or not.
+  # We used to match only the files named `Makefile.in', but
+  # some people rename them; so instead we look at the file content.
+  # Grep'ing the first line is not enough: some people post-process
+  # each Makefile.in and add a new line on top of each file to say so.
+  # Grep'ing the whole file is not good either: AIX grep has a line
+  # limit of 2048, but all sed's we know have understand at least 4000.
+  if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+    dirpart=`AS_DIRNAME("$mf")`
+  else
+    continue
+  fi
+  # Extract the definition of DEPDIR, am__include, and am__quote
+  # from the Makefile without running `make'.
+  DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+  test -z "$DEPDIR" && continue
+  am__include=`sed -n 's/^am__include = //p' < "$mf"`
+  test -z "am__include" && continue
+  am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+  # When using ansi2knr, U may be empty or an underscore; expand it
+  U=`sed -n 's/^U = //p' < "$mf"`
+  # Find all dependency output files, they are included files with
+  # $(DEPDIR) in their names.  We invoke sed twice because it is the
+  # simplest approach to changing $(DEPDIR) to its actual value in the
+  # expansion.
+  for file in `sed -n "
+    s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+    # Make sure the directory exists.
+    test -f "$dirpart/$file" && continue
+    fdir=`AS_DIRNAME(["$file"])`
+    AS_MKDIR_P([$dirpart/$fdir])
+    # echo "creating $dirpart/$file"
+    echo '# dummy' > "$dirpart/$file"
+  done
+done
+])# _AM_OUTPUT_DEPENDENCY_COMMANDS
+
+
+# AM_OUTPUT_DEPENDENCY_COMMANDS
+# -----------------------------
+# This macro should only be invoked once -- use via AC_REQUIRE.
+#
+# This code is only required when automatic dependency tracking
+# is enabled.  FIXME.  This creates each `.P' file that we will
+# need in order to bootstrap the dependency handling code.
+AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
+[AC_CONFIG_COMMANDS([depfiles],
+     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
+     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
+])
+
+# Do all the work for Automake.                             -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2008 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 13
+
+# This macro actually does too much.  Some checks are only needed if
+# your package does certain things.  But this isn't really a big deal.
+
+# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
+# AM_INIT_AUTOMAKE([OPTIONS])
+# -----------------------------------------------
+# The call with PACKAGE and VERSION arguments is the old style
+# call (pre autoconf-2.50), which is being phased out.  PACKAGE
+# and VERSION should now be passed to AC_INIT and removed from
+# the call to AM_INIT_AUTOMAKE.
+# We support both call styles for the transition.  After
+# the next Automake release, Autoconf can make the AC_INIT
+# arguments mandatory, and then we can depend on a new Autoconf
+# release and drop the old call support.
+AC_DEFUN([AM_INIT_AUTOMAKE],
+[AC_PREREQ([2.60])dnl
+dnl Autoconf wants to disallow AM_ names.  We explicitly allow
+dnl the ones we care about.
+m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
+AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
+AC_REQUIRE([AC_PROG_INSTALL])dnl
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+AC_SUBST([CYGPATH_W])
+
+# Define the identity of the package.
+dnl Distinguish between old-style and new-style calls.
+m4_ifval([$2],
+[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
+ AC_SUBST([PACKAGE], [$1])dnl
+ AC_SUBST([VERSION], [$2])],
+[_AM_SET_OPTIONS([$1])dnl
+dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
+m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
+  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
+ AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
+ AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
+
+_AM_IF_OPTION([no-define],,
+[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
+ AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
+AM_MISSING_PROG(AUTOCONF, autoconf)
+AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
+AM_MISSING_PROG(AUTOHEADER, autoheader)
+AM_MISSING_PROG(MAKEINFO, makeinfo)
+AM_PROG_INSTALL_SH
+AM_PROG_INSTALL_STRIP
+AC_REQUIRE([AM_PROG_MKDIR_P])dnl
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_SET_LEADING_DOT])dnl
+_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
+              [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
+	      		     [_AM_PROG_TAR([v7])])])
+_AM_IF_OPTION([no-dependencies],,
+[AC_PROVIDE_IFELSE([AC_PROG_CC],
+                  [_AM_DEPENDENCIES(CC)],
+                  [define([AC_PROG_CC],
+                          defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_CXX],
+                  [_AM_DEPENDENCIES(CXX)],
+                  [define([AC_PROG_CXX],
+                          defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJC],
+                  [_AM_DEPENDENCIES(OBJC)],
+                  [define([AC_PROG_OBJC],
+                          defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
+])
+])
+
+
+# When config.status generates a header, we must update the stamp-h file.
+# This file resides in the same directory as the config header
+# that is generated.  The stamp files are numbered to have different names.
+
+# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
+# loop where config.status creates the headers, so we can generate
+# our stamp files there.
+AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
+[# Compute $1's index in $config_headers.
+_am_arg=$1
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
+
+# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+install_sh=${install_sh-"\$(SHELL) $am_aux_dir/install-sh"}
+AC_SUBST(install_sh)])
+
+# Copyright (C) 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# Check whether the underlying file-system supports filenames
+# with a leading dot.  For instance MS-DOS doesn't.
+AC_DEFUN([AM_SET_LEADING_DOT],
+[rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+AC_SUBST([am__leading_dot])])
+
+# Check to see how 'make' treats includes.	            -*- Autoconf -*-
+
+# Copyright (C) 2001, 2002, 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 3
+
+# AM_MAKE_INCLUDE()
+# -----------------
+# Check to see how make treats includes.
+AC_DEFUN([AM_MAKE_INCLUDE],
+[am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo done
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+AC_MSG_CHECKING([for style of include used by $am_make])
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
+   am__include=include
+   am__quote=
+   _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+      am__include=.include
+      am__quote="\""
+      _am_result=BSD
+   fi
+fi
+AC_SUBST([am__include])
+AC_SUBST([am__quote])
+AC_MSG_RESULT([$_am_result])
+rm -f confinc confmf
+])
+
+# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
+
+# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 5
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+
+# AM_MISSING_HAS_RUN
+# ------------------
+# Define MISSING if not defined so far and test if it supports --run.
+# If it does, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([missing])dnl
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  AC_MSG_WARN([`missing' script is too old or missing])
+fi
+])
+
+# Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_MKDIR_P
+# ---------------
+# Check for `mkdir -p'.
+AC_DEFUN([AM_PROG_MKDIR_P],
+[AC_PREREQ([2.60])dnl
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
+dnl while keeping a definition of mkdir_p for backward compatibility.
+dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
+dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
+dnl Makefile.ins that do not define MKDIR_P, so we do our own
+dnl adjustment using top_builddir (which is defined more often than
+dnl MKDIR_P).
+AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
+case $mkdir_p in
+  [[\\/$]]* | ?:[[\\/]]*) ;;
+  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
+esac
+])
+
+# Helper functions for option handling.                     -*- Autoconf -*-
+
+# Copyright (C) 2001, 2002, 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 3
+
+# _AM_MANGLE_OPTION(NAME)
+# -----------------------
+AC_DEFUN([_AM_MANGLE_OPTION],
+[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
+
+# _AM_SET_OPTION(NAME)
+# ------------------------------
+# Set option NAME.  Presently that only means defining a flag for this option.
+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
+
+# _AM_SET_OPTIONS(OPTIONS)
+# ----------------------------------
+# OPTIONS is a space-separated list of Automake options.
+AC_DEFUN([_AM_SET_OPTIONS],
+[AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
+
+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
+# -------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 4
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+   if test "$[*]" = "X"; then
+      # -L didn't work.
+      set X `ls -t $srcdir/configure conftest.file`
+   fi
+   rm -f conftest.file
+   if test "$[*]" != "X $srcdir/configure conftest.file" \
+      && test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+alias in your environment])
+   fi
+
+   test "$[2]" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT(yes)])
+
+# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor `install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in `make install-strip', and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'.  However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# Check how to create a tarball.                            -*- Autoconf -*-
+
+# Copyright (C) 2004, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of `v7', `ustar', or `pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+#     tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+#     $(am__untar) < result.tar
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.
+AM_MISSING_PROG([AMTAR], [tar])
+m4_if([$1], [v7],
+     [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
+     [m4_case([$1], [ustar],, [pax],,
+              [m4_fatal([Unknown tar format])])
+AC_MSG_CHECKING([how to create a $1 tar archive])
+# Loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+_am_tools=${am_cv_prog_tar_$1-$_am_tools}
+# Do not fold the above two line into one, because Tru64 sh and
+# Solaris sh will not grok spaces in the rhs of `-'.
+for _am_tool in $_am_tools
+do
+  case $_am_tool in
+  gnutar)
+    for _am_tar in tar gnutar gtar;
+    do
+      AM_RUN_LOG([$_am_tar --version]) && break
+    done
+    am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+    am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+    am__untar="$_am_tar -xf -"
+    ;;
+  plaintar)
+    # Must skip GNU tar: if it does not support --format= it doesn't create
+    # ustar tarball either.
+    (tar --version) >/dev/null 2>&1 && continue
+    am__tar='tar chf - "$$tardir"'
+    am__tar_='tar chf - "$tardir"'
+    am__untar='tar xf -'
+    ;;
+  pax)
+    am__tar='pax -L -x $1 -w "$$tardir"'
+    am__tar_='pax -L -x $1 -w "$tardir"'
+    am__untar='pax -r'
+    ;;
+  cpio)
+    am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+    am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+    am__untar='cpio -i -H $1 -d'
+    ;;
+  none)
+    am__tar=false
+    am__tar_=false
+    am__untar=false
+    ;;
+  esac
+
+  # If the value was cached, stop now.  We just wanted to have am__tar
+  # and am__untar set.
+  test -n "${am_cv_prog_tar_$1}" && break
+
+  # tar/untar a dummy directory, and stop if the command works
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  echo GrepMe > conftest.dir/file
+  AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+  rm -rf conftest.dir
+  if test -s conftest.tar; then
+    AM_RUN_LOG([$am__untar <conftest.tar])
+    grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+  fi
+done
+rm -rf conftest.dir
+
+AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
diff --git a/config.guess b/config.guess
new file mode 100755
index 0000000..278f9e9
--- /dev/null
+++ b/config.guess
@@ -0,0 +1,1516 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
+#   Inc.
+
+timestamp='2007-07-22'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+# 02110-1301, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+
+# Originally written by Per Bothner <per@bothner.com>.
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# This script attempts to guess a canonical system name similar to
+# config.sub.  If it succeeds, it prints the system name on stdout, and
+# exits with 0.  Otherwise, it exits with 1.
+#
+# The plan is that this can be called by configure scripts if you
+# don't specify an explicit build system type.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > $dummy.c ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+	case "${UNAME_MACHINE_ARCH}" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently, or will in the future.
+	case "${UNAME_MACHINE_ARCH}" in
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		eval $set_cc_for_build
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep __ELF__ >/dev/null
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+	        os=netbsd
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "${UNAME_VERSION}" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "${machine}-${os}${release}"
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+	exit ;;
+    *:SolidBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    *:MirBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+	        UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE="alphaev5" ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE="alphaev56" ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE="alphapca56" ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE="alphapca57" ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE="alphaev6" ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE="alphaev67" ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE="alphaev69" ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE="alphaev7" ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE="alphaev79" ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	exit ;;
+    Alpha\ *:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# Should we change UNAME_MACHINE based on the output of uname instead
+	# of the specific Alpha model?
+	echo alpha-pc-interix
+	exit ;;
+    21064:Windows_NT:50:3)
+	echo alpha-dec-winnt3.5
+	exit ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+        echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix${UNAME_RELEASE}
+	exit ;;
+    arm:riscos:*:*|arm:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos${UNAME_RELEASE}
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos${UNAME_RELEASE}
+		;;
+	    sun4)
+		echo sparc-sun-sunos${UNAME_RELEASE}
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos${UNAME_RELEASE}
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+        echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+        exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+        echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+        echo m68k-milan-mint${UNAME_RELEASE}
+        exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+        echo m68k-hades-mint${UNAME_RELEASE}
+        exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+        echo m68k-unknown-mint${UNAME_RELEASE}
+        exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten${UNAME_RELEASE}
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten${UNAME_RELEASE}
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix${UNAME_RELEASE}
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c &&
+	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`$dummy $dummyarg` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos${UNAME_RELEASE}
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+        # DG/UX returns AViiON for all architectures
+        UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+	then
+	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+	       [ ${TARGET_BINARY_INTERFACE}x = x ]
+	    then
+		echo m88k-dg-dgux${UNAME_RELEASE}
+	    else
+		echo m88k-dg-dguxbcs${UNAME_RELEASE}
+	    fi
+	else
+	    echo i586-dg-dgux${UNAME_RELEASE}
+	fi
+ 	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		eval $set_cc_for_build
+		sed 's/^		//' << EOF >$dummy.c
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[45])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	case "${UNAME_MACHINE}" in
+	    9000/31? )            HP_ARCH=m68000 ;;
+	    9000/[34]?? )         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+                    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+                    case "${sc_cpu_version}" in
+                      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+                      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+                      532)                      # CPU_PA_RISC2_0
+                        case "${sc_kernel_bits}" in
+                          32) HP_ARCH="hppa2.0n" ;;
+                          64) HP_ARCH="hppa2.0w" ;;
+			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
+                        esac ;;
+                    esac
+		fi
+		if [ "${HP_ARCH}" = "" ]; then
+		    eval $set_cc_for_build
+		    sed 's/^              //' << EOF >$dummy.c
+
+              #define _HPUX_SOURCE
+              #include <stdlib.h>
+              #include <unistd.h>
+
+              int main ()
+              {
+              #if defined(_SC_KERNEL_BITS)
+                  long bits = sysconf(_SC_KERNEL_BITS);
+              #endif
+                  long cpu  = sysconf (_SC_CPU_VERSION);
+
+                  switch (cpu)
+              	{
+              	case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+              	case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+              	case CPU_PA_RISC2_0:
+              #if defined(_SC_KERNEL_BITS)
+              	    switch (bits)
+              		{
+              		case 64: puts ("hppa2.0w"); break;
+              		case 32: puts ("hppa2.0n"); break;
+              		default: puts ("hppa2.0"); break;
+              		} break;
+              #else  /* !defined(_SC_KERNEL_BITS) */
+              	    puts ("hppa2.0"); break;
+              #endif
+              	default: puts ("hppa1.0"); break;
+              	}
+                  exit (0);
+              }
+EOF
+		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ ${HP_ARCH} = "hppa2.0w" ]
+	then
+	    eval $set_cc_for_build
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep __LP64__ >/dev/null
+	    then
+		HP_ARCH="hppa2.0w"
+	    else
+		HP_ARCH="hppa64"
+	    fi
+	fi
+	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux${HPUX_REV}
+	exit ;;
+    3050*:HI-UX:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo ${UNAME_MACHINE}-unknown-osf1mk
+	else
+	    echo ${UNAME_MACHINE}-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+        exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+        exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+        exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+        exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+        exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+        FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+        exit ;;
+    5000:UNIX_System_V:4.*:*)
+        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+        FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+        echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:BSD/OS:*:*)
+	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:FreeBSD:*:*)
+	case ${UNAME_MACHINE} in
+	    pc98)
+		echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	    amd64)
+		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	    *)
+		echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	esac
+	exit ;;
+    i*:CYGWIN*:*)
+	echo ${UNAME_MACHINE}-pc-cygwin
+	exit ;;
+    *:MINGW*:*)
+	echo ${UNAME_MACHINE}-pc-mingw32
+	exit ;;
+    i*:windows32*:*)
+    	# uname -m includes "-pc" on this system.
+    	echo ${UNAME_MACHINE}-mingw32
+	exit ;;
+    i*:PW*:*)
+	echo ${UNAME_MACHINE}-pc-pw32
+	exit ;;
+    *:Interix*:[3456]*)
+    	case ${UNAME_MACHINE} in
+	    x86)
+		echo i586-pc-interix${UNAME_RELEASE}
+		exit ;;
+	    EM64T | authenticamd)
+		echo x86_64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	esac ;;
+    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
+	echo i${UNAME_MACHINE}-pc-mks
+	exit ;;
+    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+	# UNAME_MACHINE based on the output of uname instead of i386?
+	echo i586-pc-interix
+	exit ;;
+    i*:UWIN*:*)
+	echo ${UNAME_MACHINE}-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    p*:CYGWIN*:*)
+	echo powerpcle-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
+	exit ;;
+    i*86:Minix:*:*)
+	echo ${UNAME_MACHINE}-pc-minix
+	exit ;;
+    arm*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    avr32*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    cris:Linux:*:*)
+	echo cris-axis-linux-gnu
+	exit ;;
+    crisv32:Linux:*:*)
+	echo crisv32-axis-linux-gnu
+	exit ;;
+    frv:Linux:*:*)
+    	echo frv-unknown-linux-gnu
+	exit ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    m32r*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    mips:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef mips
+	#undef mipsel
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=mipsel
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=mips
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
+	    /^CPU/{
+		s: ::g
+		p
+	    }'`"
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	;;
+    mips64:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef mips64
+	#undef mips64el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=mips64el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=mips64
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
+	    /^CPU/{
+		s: ::g
+		p
+	    }'`"
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	;;
+    or32:Linux:*:*)
+	echo or32-unknown-linux-gnu
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-gnu
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-gnu
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+        esac
+	objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
+	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
+	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
+	  *)    echo hppa-unknown-linux-gnu ;;
+	esac
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-gnu
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo ${UNAME_MACHINE}-ibm-linux
+	exit ;;
+    sh64*:Linux:*:*)
+    	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    sh*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    vax:Linux:*:*)
+	echo ${UNAME_MACHINE}-dec-linux-gnu
+	exit ;;
+    x86_64:Linux:*:*)
+	echo x86_64-unknown-linux-gnu
+	exit ;;
+    xtensa:Linux:*:*)
+    	echo xtensa-unknown-linux-gnu
+	exit ;;
+    i*86:Linux:*:*)
+	# The BFD linker knows what the default object file format is, so
+	# first see if it will tell us. cd to the root directory to prevent
+	# problems with other programs or directories called `ld' in the path.
+	# Set LC_ALL=C to ensure ld outputs messages in English.
+	ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
+			 | sed -ne '/supported targets:/!d
+				    s/[ 	][ 	]*/ /g
+				    s/.*supported targets: *//
+				    s/ .*//
+				    p'`
+        case "$ld_supported_targets" in
+	  elf32-i386)
+		TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
+		;;
+	  a.out-i386-linux)
+		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
+		exit ;;
+	  coff-i386)
+		echo "${UNAME_MACHINE}-pc-linux-gnucoff"
+		exit ;;
+	  "")
+		# Either a pre-BFD a.out linker (linux-gnuoldld) or
+		# one that does not give us useful --help.
+		echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
+		exit ;;
+	esac
+	# Determine whether the default compiler is a.out or elf
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#include <features.h>
+	#ifdef __ELF__
+	# ifdef __GLIBC__
+	#  if __GLIBC__ >= 2
+	LIBC=gnu
+	#  else
+	LIBC=gnulibc1
+	#  endif
+	# else
+	LIBC=gnulibc1
+	# endif
+	#else
+	#if defined(__INTEL_COMPILER) || defined(__PGI) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+	LIBC=gnu
+	#else
+	LIBC=gnuaout
+	#endif
+	#endif
+	#ifdef __dietlibc__
+	LIBC=dietlibc
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
+	    /^LIBC/{
+		s: ::g
+		p
+	    }'`"
+	test x"${LIBC}" != x && {
+		echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+		exit
+	}
+	test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
+	;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+        # Unixware is an offshoot of SVR4, but it has its own version
+        # number series starting with 2...
+        # I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+        # Use sysv4.2uw... so that sysv4* matches it.
+	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo ${UNAME_MACHINE}-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo ${UNAME_MACHINE}-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo ${UNAME_MACHINE}-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo ${UNAME_MACHINE}-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
+	echo i386-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    i*86:*DOS:*:*)
+	echo ${UNAME_MACHINE}-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+	else
+		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+    	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+	else
+		echo ${UNAME_MACHINE}-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+        # uname -m prints for DJGPP always 'pc', but it prints nothing about
+        # the processor, so we play safe by assuming i386.
+	echo i386-pc-msdosdjgpp
+        exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+          && { echo i486-ncr-sysv4; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
+	echo powerpc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv${UNAME_RELEASE}
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo ${UNAME_MACHINE}-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+                      # says <Richard.M.Bartel@ccMail.Census.GOV>
+        echo i586-unisys-sysv4
+        exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo ${UNAME_MACHINE}-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux${UNAME_RELEASE}
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+	        echo mips-nec-sysv${UNAME_RELEASE}
+	else
+	        echo mips-unknown-sysv${UNAME_RELEASE}
+	fi
+        exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux${UNAME_RELEASE}
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Rhapsody:*:*)
+	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	case $UNAME_PROCESSOR in
+	    unknown) UNAME_PROCESSOR=powerpc ;;
+	esac
+	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = "x86"; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NSE-?:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSR-?:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = "386"; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo ${UNAME_MACHINE}-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+        echo mips-sei-seiux${UNAME_RELEASE}
+	exit ;;
+    *:DragonFly:*:*)
+	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+	exit ;;
+    *:*VMS:*:*)
+    	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "${UNAME_MACHINE}" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+	exit ;;
+    i*86:rdos:*:*)
+	echo ${UNAME_MACHINE}-pc-rdos
+	exit ;;
+esac
+
+#echo '(No uname command or uname output not recognized.)' 1>&2
+#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
+
+eval $set_cc_for_build
+cat >$dummy.c <<EOF
+#ifdef _SEQUENT_
+# include <sys/types.h>
+# include <sys/utsname.h>
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
+     I don't know....  */
+  printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include <sys/param.h>
+  printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+          "4"
+#else
+	  ""
+#endif
+         ); exit (0);
+#endif
+#endif
+
+#if defined (__arm) && defined (__acorn) && defined (__unix)
+  printf ("arm-acorn-riscix\n"); exit (0);
+#endif
+
+#if defined (hp300) && !defined (hpux)
+  printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+  int version;
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+  if (version < 4)
+    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  else
+    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
+  exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+  printf ("ns32k-encore-mach\n"); exit (0);
+#else
+  printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+  printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+  printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+  printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+    struct utsname un;
+
+    uname(&un);
+
+    if (strncmp(un.version, "V2", 2) == 0) {
+	printf ("i386-sequent-ptx2\n"); exit (0);
+    }
+    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+	printf ("i386-sequent-ptx1\n"); exit (0);
+    }
+    printf ("i386-sequent-ptx\n"); exit (0);
+
+#endif
+
+#if defined (vax)
+# if !defined (ultrix)
+#  include <sys/param.h>
+#  if defined (BSD)
+#   if BSD == 43
+      printf ("vax-dec-bsd4.3\n"); exit (0);
+#   else
+#    if BSD == 199006
+      printf ("vax-dec-bsd4.3reno\n"); exit (0);
+#    else
+      printf ("vax-dec-bsd\n"); exit (0);
+#    endif
+#   endif
+#  else
+    printf ("vax-dec-bsd\n"); exit (0);
+#  endif
+# else
+    printf ("vax-dec-ultrix\n"); exit (0);
+# endif
+#endif
+
+#if defined (alliant) && defined (i860)
+  printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+  exit (1);
+}
+EOF
+
+$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
+	{ echo "$SYSTEM_NAME"; exit; }
+
+# Apollos put the system type in the environment.
+
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
+
+# Convex versions that predate uname can use getsysinfo(1)
+
+if [ -x /usr/convex/getsysinfo ]
+then
+    case `getsysinfo -f cpu_type` in
+    c1*)
+	echo c1-convex-bsd
+	exit ;;
+    c2*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    c34*)
+	echo c34-convex-bsd
+	exit ;;
+    c38*)
+	echo c38-convex-bsd
+	exit ;;
+    c4*)
+	echo c4-convex-bsd
+	exit ;;
+    esac
+fi
+
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+  http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.guess
+and
+  http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.sub
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/config.sub b/config.sub
new file mode 100755
index 0000000..1761d8b
--- /dev/null
+++ b/config.sub
@@ -0,0 +1,1626 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
+#   Inc.
+
+timestamp='2007-06-28'
+
+# This file is (in principle) common to ALL GNU software.
+# The presence of a machine in this file suggests that SOME GNU software
+# can handle that machine.  It does not imply ALL GNU software can.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+# 02110-1301, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
+  uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
+  storm-chaos* | os2-emx* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  *)
+    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    if [ $basic_machine != $1 ]
+    then os=`echo $1 | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple | -axis | -knuth | -cray)
+		os=
+		basic_machine=$1
+		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+ 	-chorusrdb)
+ 		os=-chorusrdb
+		basic_machine=$1
+ 		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco6)
+		os=-sco5v6
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5)
+		os=-sco3.2v5
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-udk*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-windowsnt*)
+		os=`echo $os | sed -e 's/windowsnt/winnt/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	1750a | 580 \
+	| a29k \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+	| am33_2.0 \
+	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+	| bfin \
+	| c4x | clipper \
+	| d10v | d30v | dlx | dsp16xx \
+	| fido | fr30 | frv \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| i370 | i860 | i960 | ia64 \
+	| ip2k | iq2000 \
+	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+	| maxq | mb | microblaze | mcore | mep \
+	| mips | mipsbe | mipseb | mipsel | mipsle \
+	| mips16 \
+	| mips64 | mips64el \
+	| mips64vr | mips64vrel \
+	| mips64orion | mips64orionel \
+	| mips64vr4100 | mips64vr4100el \
+	| mips64vr4300 | mips64vr4300el \
+	| mips64vr5000 | mips64vr5000el \
+	| mips64vr5900 | mips64vr5900el \
+	| mipsisa32 | mipsisa32el \
+	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa64 | mipsisa64el \
+	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64sb1 | mipsisa64sb1el \
+	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipstx39 | mipstx39el \
+	| mn10200 | mn10300 \
+	| mt \
+	| msp430 \
+	| nios | nios2 \
+	| ns16k | ns32k \
+	| or32 \
+	| pdp10 | pdp11 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+	| pyramid \
+	| score \
+	| sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh64 | sh64le \
+	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+	| spu | strongarm \
+	| tahoe | thumb | tic4x | tic80 | tron \
+	| v850 | v850e \
+	| we32k \
+	| x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
+	| z8k)
+		basic_machine=$basic_machine-unknown
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12)
+		# Motorola 68HC11/12.
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+		;;
+	ms1)
+		basic_machine=mt-unknown
+		;;
+
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	580-* \
+	| a29k-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| avr-* | avr32-* \
+	| bfin-* | bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
+	| clipper-* | craynv-* | cydra-* \
+	| d10v-* | d30v-* | dlx-* \
+	| elxsi-* \
+	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| i*86-* | i860-* | i960-* | ia64-* \
+	| ip2k-* | iq2000-* \
+	| m32c-* | m32r-* | m32rle-* \
+	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* \
+	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+	| mips16-* \
+	| mips64-* | mips64el-* \
+	| mips64vr-* | mips64vrel-* \
+	| mips64orion-* | mips64orionel-* \
+	| mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* \
+	| mips64vr5000-* | mips64vr5000el-* \
+	| mips64vr5900-* | mips64vr5900el-* \
+	| mipsisa32-* | mipsisa32el-* \
+	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa64-* | mipsisa64el-* \
+	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64sb1-* | mipsisa64sb1el-* \
+	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipstx39-* | mipstx39el-* \
+	| mmix-* \
+	| mt-* \
+	| msp430-* \
+	| nios-* | nios2-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+	| pyramid-* \
+	| romp-* | rs6000-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+	| sparclite-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
+	| tahoe-* | thumb-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tron-* \
+	| v850-* | v850e-* | vax-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
+	| xstormy16-* | xtensa-* \
+	| ymp-* \
+	| z8k-*)
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-unknown
+		os=-bsd
+		;;
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+    	abacus)
+		basic_machine=abacus-unknown
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amd64)
+		basic_machine=x86_64-pc
+		;;
+	amd64-*)
+		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-unknown
+		;;
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-unknown
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	c90)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | j90)
+		basic_machine=j90-cray
+		os=-unicos
+		;;
+	craynv)
+		basic_machine=craynv-cray
+		os=-unicosmp
+		;;
+	cr16)
+		basic_machine=cr16-unknown
+		os=-elf
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	crisv32 | crisv32-* | etraxfs*)
+		basic_machine=crisv32-axis
+		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
+	crx)
+		basic_machine=crx-unknown
+		os=-elf
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	decsystem10* | dec10*)
+		basic_machine=pdp10-dec
+		os=-tops10
+		;;
+	decsystem20* | dec20*)
+		basic_machine=pdp10-dec
+		os=-tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	djgpp)
+		basic_machine=i586-pc
+		os=-msdosdjgpp
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2* | dpx2*-bull)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax)
+		basic_machine=ns32k-encore
+		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppa-next)
+		os=-nextstep3
+		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		;;
+# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
+	i*86v32)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i*86v4*)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i*86v)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i*86sol2)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	i386-vsta | vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	m88k-omron*)
+		basic_machine=m88k-omron
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	mingw32)
+		basic_machine=i386-pc
+		os=-mingw32
+		;;
+	mingw32ce)
+		basic_machine=arm-unknown
+		os=-mingw32ce
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mips3*-*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	morphos)
+		basic_machine=powerpc-unknown
+		os=-morphos
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	ms1-*)
+		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
+	next | m*-next )
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	openrisc | openrisc-*)
+		basic_machine=or32-unknown
+		;;
+	os400)
+		basic_machine=powerpc-ibm
+		os=-os400
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+	pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pc98)
+		basic_machine=i386-pc
+		;;
+	pc98-*)
+		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium | p5 | k5 | k6 | nexgen | viac3)
+		basic_machine=i586-pc
+		;;
+	pentiumpro | p6 | 6x86 | athlon | athlon_*)
+		basic_machine=i686-pc
+		;;
+	pentiumii | pentium2 | pentiumiii | pentium3)
+		basic_machine=i686-pc
+		;;
+	pentium4)
+		basic_machine=i786-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium4-*)
+		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=power-ibm
+		;;
+	ppc)	basic_machine=powerpc-unknown
+		;;
+	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle | ppc-le | powerpc-little)
+		basic_machine=powerpcle-unknown
+		;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64)	basic_machine=powerpc64-unknown
+		;;
+	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+		basic_machine=powerpc64le-unknown
+		;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rdos)
+		basic_machine=i386-pc
+		os=-rdos
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	s390 | s390-*)
+		basic_machine=s390-ibm
+		;;
+	s390x | s390x-*)
+		basic_machine=s390x-ibm
+		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	sb1)
+		basic_machine=mipsisa64sb1-unknown
+		;;
+	sb1el)
+		basic_machine=mipsisa64sb1el-unknown
+		;;
+	sde)
+		basic_machine=mipsisa32-sde
+		os=-elf
+		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh)
+		basic_machine=sh-hitachi
+		os=-hms
+		;;
+	sh5el)
+		basic_machine=sh5le-unknown
+		;;
+	sh64)
+		basic_machine=sh64-unknown
+		;;
+	sparclite-wrs | simso-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	t3e)
+		basic_machine=alphaev5-cray
+		os=-unicos
+		;;
+	t90)
+		basic_machine=t90-cray
+		os=-unicos
+		;;
+	tic54x | c54x*)
+		basic_machine=tic54x-unknown
+		os=-coff
+		;;
+	tic55x | c55x*)
+		basic_machine=tic55x-unknown
+		os=-coff
+		;;
+	tic6x | c6x*)
+		basic_machine=tic6x-unknown
+		os=-coff
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
+	toad1)
+		basic_machine=pdp10-xkl
+		os=-tops20
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	tpf)
+		basic_machine=s390x-ibm
+		os=-tpf
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	xbox)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	z8k-*-coff)
+		basic_machine=z8k-unknown
+		os=-sim
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	mmix)
+		basic_machine=mmix-knuth
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sh[1234] | sh[24]a | sh[34]eb | sh[1234]le | sh[23]ele)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
+		basic_machine=sparc-sun
+		;;
+	cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
+	*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+        # First match some system type aliases
+        # that might get confused with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-svr4*)
+		os=-sysv4
+		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# First accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST END IN A *, to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -openbsd* | -solidbsd* \
+	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* \
+	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto-qnx*)
+		;;
+	-nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo $os | sed -e 's|mac|macos|'`
+		;;
+	-linux-dietlibc)
+		os=-linux-dietlibc
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo $os | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo $os | sed -e 's|sunos6|solaris3|'`
+		;;
+	-opened*)
+		os=-openedition
+		;;
+        -os400*)
+		os=-os400
+		;;
+	-wince*)
+		os=-wince
+		;;
+	-osfrose*)
+		os=-osfrose
+		;;
+	-osf*)
+		os=-osf
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-atheos*)
+		os=-atheos
+		;;
+	-syllable*)
+		os=-syllable
+		;;
+	-386bsd)
+		os=-bsd
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-nova*)
+		os=-rtmk-nova
+		;;
+	-ns2 )
+		os=-nextstep2
+		;;
+	-nsk*)
+		os=-nsk
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+        -tpf*)
+		os=-tpf
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-ose*)
+		os=-ose
+		;;
+	-es1800*)
+		os=-ose
+		;;
+	-xenix)
+		os=-xenix
+		;;
+	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+		os=-mint
+		;;
+	-aros*)
+		os=-aros
+		;;
+	-kaos*)
+		os=-kaos
+		;;
+	-zvmoe)
+		os=-zvmoe
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+        score-*)
+		os=-elf
+		;;
+        spu-*)
+		os=-elf
+		;;
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-rebel)
+		os=-linux
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+        c4x-* | tic4x-*)
+        	os=-coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=-tops20
+		;;
+	pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		# This also exists in the configure program, but was not the
+		# default.
+		# os=-sunos4
+		;;
+	m68*-cisco)
+		os=-aout
+		;;
+        mep-*)
+		os=-elf
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
+	or32-*)
+		os=-coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	*-be)
+		os=-beos
+		;;
+	*-haiku)
+		os=-haiku
+		;;
+	*-ibm)
+		os=-aix
+		;;
+    	*-knuth)
+		os=-mmixware
+		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigaos
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next )
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-next)
+		os=-nextstep3
+		;;
+	*-gould)
+		os=-sysv
+		;;
+	*-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+	*-sgi)
+		os=-irix
+		;;
+	*-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=-uxpv
+		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-aix*)
+				vendor=ibm
+				;;
+			-beos*)
+				vendor=be
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-mpeix*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs* | -opened*)
+				vendor=ibm
+				;;
+			-os400*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-tpf*)
+				vendor=ibm
+				;;
+			-vxsim* | -vxworks* | -windiss*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
+			-vos*)
+				vendor=stratus
+				;;
+		esac
+		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo $basic_machine$os
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/configure b/configure
new file mode 100755
index 0000000..59d076e
--- /dev/null
+++ b/configure
@@ -0,0 +1,8604 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.61 for stressapptest 1.0.3_autoconf.
+#
+# Report bugs to <opensource@google.com>.
+#
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+# 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## --------------------- ##
+## M4sh Initialization.  ##
+## --------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in
+  *posix*) set -o posix ;;
+esac
+
+fi
+
+
+
+
+# PATH needs CR
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conf$$.sh
+  echo  "exit 0"   >>conf$$.sh
+  chmod +x conf$$.sh
+  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conf$$.sh
+fi
+
+# Support unset when possible.
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  as_unset=unset
+else
+  as_unset=false
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+as_nl='
+'
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+case $0 in
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  { (exit 1); exit 1; }
+fi
+
+# Work around bugs in pre-3.0 UWIN ksh.
+for as_var in ENV MAIL MAILPATH
+do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+  LC_TELEPHONE LC_TIME
+do
+  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+    eval $as_var=C; export $as_var
+  else
+    ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+  fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# CDPATH.
+$as_unset CDPATH
+
+
+if test "x$CONFIG_SHELL" = x; then
+  if (eval ":") 2>/dev/null; then
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+
+  if test $as_have_required = yes && 	 (eval ":
+(as_func_return () {
+  (exit \$1)
+}
+as_func_success () {
+  as_func_return 0
+}
+as_func_failure () {
+  as_func_return 1
+}
+as_func_ret_success () {
+  return 0
+}
+as_func_ret_failure () {
+  return 1
+}
+
+exitcode=0
+if as_func_success; then
+  :
+else
+  exitcode=1
+  echo as_func_success failed.
+fi
+
+if as_func_failure; then
+  exitcode=1
+  echo as_func_failure succeeded.
+fi
+
+if as_func_ret_success; then
+  :
+else
+  exitcode=1
+  echo as_func_ret_success failed.
+fi
+
+if as_func_ret_failure; then
+  exitcode=1
+  echo as_func_ret_failure succeeded.
+fi
+
+if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
+  :
+else
+  exitcode=1
+  echo positional parameters were not saved.
+fi
+
+test \$exitcode = 0) || { (exit 1); exit 1; }
+
+(
+  as_lineno_1=\$LINENO
+  as_lineno_2=\$LINENO
+  test \"x\$as_lineno_1\" != \"x\$as_lineno_2\" &&
+  test \"x\`expr \$as_lineno_1 + 1\`\" = \"x\$as_lineno_2\") || { (exit 1); exit 1; }
+") 2> /dev/null; then
+  :
+else
+  as_candidate_shells=
+    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  case $as_dir in
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     as_candidate_shells="$as_candidate_shells $as_dir/$as_base"
+	   done;;
+       esac
+done
+IFS=$as_save_IFS
+
+
+      for as_shell in $as_candidate_shells $SHELL; do
+	 # Try only shells that exist, to save several forks.
+	 if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		{ ("$as_shell") 2> /dev/null <<\_ASEOF
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in
+  *posix*) set -o posix ;;
+esac
+
+fi
+
+
+:
+_ASEOF
+}; then
+  CONFIG_SHELL=$as_shell
+	       as_have_required=yes
+	       if { "$as_shell" 2> /dev/null <<\_ASEOF
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in
+  *posix*) set -o posix ;;
+esac
+
+fi
+
+
+:
+(as_func_return () {
+  (exit $1)
+}
+as_func_success () {
+  as_func_return 0
+}
+as_func_failure () {
+  as_func_return 1
+}
+as_func_ret_success () {
+  return 0
+}
+as_func_ret_failure () {
+  return 1
+}
+
+exitcode=0
+if as_func_success; then
+  :
+else
+  exitcode=1
+  echo as_func_success failed.
+fi
+
+if as_func_failure; then
+  exitcode=1
+  echo as_func_failure succeeded.
+fi
+
+if as_func_ret_success; then
+  :
+else
+  exitcode=1
+  echo as_func_ret_success failed.
+fi
+
+if as_func_ret_failure; then
+  exitcode=1
+  echo as_func_ret_failure succeeded.
+fi
+
+if ( set x; as_func_ret_success y && test x = "$1" ); then
+  :
+else
+  exitcode=1
+  echo positional parameters were not saved.
+fi
+
+test $exitcode = 0) || { (exit 1); exit 1; }
+
+(
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2") || { (exit 1); exit 1; }
+
+_ASEOF
+}; then
+  break
+fi
+
+fi
+
+      done
+
+      if test "x$CONFIG_SHELL" != x; then
+  for as_var in BASH_ENV ENV
+        do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+        done
+        export CONFIG_SHELL
+        exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
+fi
+
+
+    if test $as_have_required = no; then
+  echo This script requires a shell more modern than all the
+      echo shells that I found on your system.  Please install a
+      echo modern shell, or manually run the script under such a
+      echo shell if you do have one.
+      { (exit 1); exit 1; }
+fi
+
+
+fi
+
+fi
+
+
+
+(eval "as_func_return () {
+  (exit \$1)
+}
+as_func_success () {
+  as_func_return 0
+}
+as_func_failure () {
+  as_func_return 1
+}
+as_func_ret_success () {
+  return 0
+}
+as_func_ret_failure () {
+  return 1
+}
+
+exitcode=0
+if as_func_success; then
+  :
+else
+  exitcode=1
+  echo as_func_success failed.
+fi
+
+if as_func_failure; then
+  exitcode=1
+  echo as_func_failure succeeded.
+fi
+
+if as_func_ret_success; then
+  :
+else
+  exitcode=1
+  echo as_func_ret_success failed.
+fi
+
+if as_func_ret_failure; then
+  exitcode=1
+  echo as_func_ret_failure succeeded.
+fi
+
+if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
+  :
+else
+  exitcode=1
+  echo positional parameters were not saved.
+fi
+
+test \$exitcode = 0") || {
+  echo No shell found that supports shell functions.
+  echo Please tell autoconf@gnu.org about your system,
+  echo including any error possibly output before this
+  echo message
+}
+
+
+
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
+
+  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+  # uniformly replaced by the line number.  The first 'sed' inserts a
+  # line-number line after each line using $LINENO; the second 'sed'
+  # does the real work.  The second script uses 'N' to pair each
+  # line-number line with the line containing $LINENO, and appends
+  # trailing '-' during substitution so that $LINENO is not a special
+  # case at line end.
+  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+  # scripts with optimization help from Paolo Bonzini.  Blame Lee
+  # E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
+   { (exit 1); exit 1; }; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in
+-n*)
+  case `echo 'x\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  *)   ECHO_C='\c';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir
+fi
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s='ln -s'
+  # ... but there are two gotchas:
+  # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+  # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+  # In both cases, we have to default to `cp -p'.
+  ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+    as_ln_s='cp -p'
+elif ln conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s=ln
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p=:
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+if test -x / >/dev/null 2>&1; then
+  as_test_x='test -x'
+else
+  if ls -dL / >/dev/null 2>&1; then
+    as_ls_L_option=L
+  else
+    as_ls_L_option=
+  fi
+  as_test_x='
+    eval sh -c '\''
+      if test -d "$1"; then
+        test -d "$1/.";
+      else
+	case $1 in
+        -*)set "./$1";;
+	esac;
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
+	???[sx]*):;;*)false;;esac;fi
+    '\'' sh
+  '
+fi
+as_executable_p=$as_test_x
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+
+exec 7<&0 </dev/null 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+# Identity of this package.
+PACKAGE_NAME='stressapptest'
+PACKAGE_TARNAME='stressapptest'
+PACKAGE_VERSION='1.0.3_autoconf'
+PACKAGE_STRING='stressapptest 1.0.3_autoconf'
+PACKAGE_BUGREPORT='opensource@google.com'
+
+ac_unique_file="src/"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='SHELL
+PATH_SEPARATOR
+PACKAGE_NAME
+PACKAGE_TARNAME
+PACKAGE_VERSION
+PACKAGE_STRING
+PACKAGE_BUGREPORT
+exec_prefix
+prefix
+program_transform_name
+bindir
+sbindir
+libexecdir
+datarootdir
+datadir
+sysconfdir
+sharedstatedir
+localstatedir
+includedir
+oldincludedir
+docdir
+infodir
+htmldir
+dvidir
+pdfdir
+psdir
+libdir
+localedir
+mandir
+DEFS
+ECHO_C
+ECHO_N
+ECHO_T
+LIBS
+build_alias
+host_alias
+target_alias
+build
+build_cpu
+build_vendor
+build_os
+host
+host_cpu
+host_vendor
+host_os
+target
+target_cpu
+target_vendor
+target_os
+INSTALL_PROGRAM
+INSTALL_SCRIPT
+INSTALL_DATA
+am__isrc
+CYGPATH_W
+PACKAGE
+VERSION
+ACLOCAL
+AUTOCONF
+AUTOMAKE
+AUTOHEADER
+MAKEINFO
+install_sh
+STRIP
+INSTALL_STRIP_PROGRAM
+mkdir_p
+AWK
+SET_MAKE
+am__leading_dot
+AMTAR
+am__tar
+am__untar
+CXX
+CXXFLAGS
+LDFLAGS
+CPPFLAGS
+ac_ct_CXX
+EXEEXT
+OBJEXT
+DEPDIR
+am__include
+am__quote
+AMDEP_TRUE
+AMDEP_FALSE
+AMDEPBACKSLASH
+CXXDEPMODE
+am__fastdepCXX_TRUE
+am__fastdepCXX_FALSE
+CC
+CFLAGS
+ac_ct_CC
+CCDEPMODE
+am__fastdepCC_TRUE
+am__fastdepCC_FALSE
+CPP
+GREP
+EGREP
+LIBOBJS
+LTLIBOBJS'
+ac_subst_files=''
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CXX
+CXXFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CCC
+CC
+CFLAGS
+CPP'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=*)	ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *)	ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_feature" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+   { (exit 1); exit 1; }; }
+    ac_feature=`echo $ac_feature | sed 's/[-.]/_/g'`
+    eval enable_$ac_feature=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_feature" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+   { (exit 1); exit 1; }; }
+    ac_feature=`echo $ac_feature | sed 's/[-.]/_/g'`
+    eval enable_$ac_feature=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_package" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid package name: $ac_package" >&2
+   { (exit 1); exit 1; }; }
+    ac_package=`echo $ac_package | sed 's/[-.]/_/g'`
+    eval with_$ac_package=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_package" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid package name: $ac_package" >&2
+   { (exit 1); exit 1; }; }
+    ac_package=`echo $ac_package | sed 's/[-.]/_/g'`
+    eval with_$ac_package=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) { echo "$as_me: error: unrecognized option: $ac_option
+Try \`$0 --help' for more information." >&2
+   { (exit 1); exit 1; }; }
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
+   { (exit 1); exit 1; }; }
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  { echo "$as_me: error: missing argument to $ac_option" >&2
+   { (exit 1); exit 1; }; }
+fi
+
+# Be sure to have absolute directory names.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir
+do
+  eval ac_val=\$$ac_var
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
+   { (exit 1); exit 1; }; }
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+    echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
+    If a cross compiler is detected then cross compile mode will be used." >&2
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  { echo "$as_me: error: Working directory cannot be determined" >&2
+   { (exit 1); exit 1; }; }
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  { echo "$as_me: error: pwd does not report name of working directory" >&2
+   { (exit 1); exit 1; }; }
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$0" ||
+$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$0" : 'X\(//\)[^/]' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+echo X"$0" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
+   { (exit 1); exit 1; }; }
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || { echo "$as_me: error: $ac_msg" >&2
+   { (exit 1); exit 1; }; }
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures stressapptest 1.0.3_autoconf to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+			  [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+			  [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR           user executables [EPREFIX/bin]
+  --sbindir=DIR          system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR       program executables [EPREFIX/libexec]
+  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
+  --libdir=DIR           object code libraries [EPREFIX/lib]
+  --includedir=DIR       C header files [PREFIX/include]
+  --oldincludedir=DIR    C header files for non-gcc [/usr/include]
+  --datarootdir=DIR      read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR          read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR          info documentation [DATAROOTDIR/info]
+  --localedir=DIR        locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR           man documentation [DATAROOTDIR/man]
+  --docdir=DIR           documentation root [DATAROOTDIR/doc/stressapptest]
+  --htmldir=DIR          html documentation [DOCDIR]
+  --dvidir=DIR           dvi documentation [DOCDIR]
+  --pdfdir=DIR           pdf documentation [DOCDIR]
+  --psdir=DIR            ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+  --target=TARGET   configure for building compilers for TARGET [HOST]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of stressapptest 1.0.3_autoconf:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --disable-dependency-tracking  speeds up one-time build
+  --enable-dependency-tracking   do not reject slow dependency extractors
+
+Some influential environment variables:
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  CPP         C preprocessor
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to <opensource@google.com>.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" || continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,/..,g;s,/,,'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+stressapptest configure 1.0.3_autoconf
+generated by GNU Autoconf 2.61
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by stressapptest $as_me 1.0.3_autoconf, which was
+generated by GNU Autoconf 2.61.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  echo "PATH: $as_dir"
+done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
+    2)
+      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      ac_configure_args="$ac_configure_args '$ac_arg'"
+      ;;
+    esac
+  done
+done
+$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
+$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    cat <<\_ASBOX
+## ---------------- ##
+## Cache variables. ##
+## ---------------- ##
+_ASBOX
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { echo "$as_me:$LINENO: WARNING: Cache variable $ac_var contains a newline." >&5
+echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      *) $as_unset $ac_var ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    cat <<\_ASBOX
+## ----------------- ##
+## Output variables. ##
+## ----------------- ##
+_ASBOX
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      cat <<\_ASBOX
+## ------------------- ##
+## File substitutions. ##
+## ------------------- ##
+_ASBOX
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      cat <<\_ASBOX
+## ----------- ##
+## confdefs.h. ##
+## ----------- ##
+_ASBOX
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      echo "$as_me: caught signal $ac_signal"
+    echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer explicitly selected file to automatically selected ones.
+if test -n "$CONFIG_SITE"; then
+  set x "$CONFIG_SITE"
+elif test "x$prefix" != xNONE; then
+  set x "$prefix/share/config.site" "$prefix/etc/config.site"
+else
+  set x "$ac_default_prefix/share/config.site" \
+	"$ac_default_prefix/etc/config.site"
+fi
+shift
+for ac_site_file
+do
+  if test -r "$ac_site_file"; then
+    { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
+echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file"
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special
+  # files actually), so we avoid doing that.
+  if test -f "$cache_file"; then
+    { echo "$as_me:$LINENO: loading cache $cache_file" >&5
+echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { echo "$as_me:$LINENO: creating cache $cache_file" >&5
+echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
+echo "$as_me:   former value:  $ac_old_val" >&2;}
+	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
+echo "$as_me:   current value: $ac_new_val" >&2;}
+	ac_cache_corrupted=:
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
+echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
+echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+ac_aux_dir=
+for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" >&5
+echo "$as_me: error: cannot find install-sh or install.sh in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  { { echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
+echo "$as_me: error: cannot run $SHELL $ac_aux_dir/config.sub" >&2;}
+   { (exit 1); exit 1; }; }
+
+{ echo "$as_me:$LINENO: checking build system type" >&5
+echo $ECHO_N "checking build system type... $ECHO_C" >&6; }
+if test "${ac_cv_build+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
+echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
+   { (exit 1); exit 1; }; }
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&5
+echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&2;}
+   { (exit 1); exit 1; }; }
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+echo "${ECHO_T}$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) { { echo "$as_me:$LINENO: error: invalid value of canonical build" >&5
+echo "$as_me: error: invalid value of canonical build" >&2;}
+   { (exit 1); exit 1; }; };;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ echo "$as_me:$LINENO: checking host system type" >&5
+echo $ECHO_N "checking host system type... $ECHO_C" >&6; }
+if test "${ac_cv_host+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&5
+echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_host" >&5
+echo "${ECHO_T}$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) { { echo "$as_me:$LINENO: error: invalid value of canonical host" >&5
+echo "$as_me: error: invalid value of canonical host" >&2;}
+   { (exit 1); exit 1; }; };;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  { { echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
+echo "$as_me: error: cannot run $SHELL $ac_aux_dir/config.sub" >&2;}
+   { (exit 1); exit 1; }; }
+
+{ echo "$as_me:$LINENO: checking build system type" >&5
+echo $ECHO_N "checking build system type... $ECHO_C" >&6; }
+if test "${ac_cv_build+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
+echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
+   { (exit 1); exit 1; }; }
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&5
+echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&2;}
+   { (exit 1); exit 1; }; }
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+echo "${ECHO_T}$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) { { echo "$as_me:$LINENO: error: invalid value of canonical build" >&5
+echo "$as_me: error: invalid value of canonical build" >&2;}
+   { (exit 1); exit 1; }; };;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+# Checking for target cpu and setting custom configuration
+# for the different platforms
+{ echo "$as_me:$LINENO: checking target system type" >&5
+echo $ECHO_N "checking target system type... $ECHO_C" >&6; }
+if test "${ac_cv_target+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test "x$target_alias" = x; then
+  ac_cv_target=$ac_cv_host
+else
+  ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
+    { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $target_alias failed" >&5
+echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $target_alias failed" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_target" >&5
+echo "${ECHO_T}$ac_cv_target" >&6; }
+case $ac_cv_target in
+*-*-*) ;;
+*) { { echo "$as_me:$LINENO: error: invalid value of canonical target" >&5
+echo "$as_me: error: invalid value of canonical target" >&2;}
+   { (exit 1); exit 1; }; };;
+esac
+target=$ac_cv_target
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_target
+shift
+target_cpu=$1
+target_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+target_os=$*
+IFS=$ac_save_IFS
+case $target_os in *\ *) target_os=`echo "$target_os" | sed 's/ /-/g'`;; esac
+
+
+# The aliases save the names the user supplied, while $host etc.
+# will get canonicalized.
+test -n "$target_alias" &&
+  test "$program_prefix$program_suffix$program_transform_name" = \
+    NONENONEs,x,x, &&
+  program_prefix=${target_alias}-
+case x"$target_cpu" in
+  "xx86_64")
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_CPU_X86_64
+_ACEOF
+
+    ;;
+  "xi686")
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_CPU_I686
+_ACEOF
+
+    ;;
+  "xpowerpc")
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_CPU_PPC
+_ACEOF
+
+    ;;
+  "xarmv7a")
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_CPU_ARMV7A
+_ACEOF
+
+    ;;
+  *)
+    { { echo "$as_me:$LINENO: error: $target_cpu is not supported! Try x86_64, i686, powerpc, or armv7a" >&5
+echo "$as_me: error: $target_cpu is not supported! Try x86_64, i686, powerpc, or armv7a" >&2;}
+   { (exit 1); exit 1; }; }
+    ;;
+esac
+
+_os=`uname`
+## The following allows like systems to share settings. This is not meant to
+## imply that these OS are the same thing. From OpenOffice dmake configure.in
+case "$_os" in
+  "Linux")
+    OS_VERSION=linux
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_OS_LINUX
+_ACEOF
+
+    ;;
+  "Darwin")
+    OS_VERSION=macosx
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_OS_DARWIN
+_ACEOF
+
+    ;;
+  "FreeBSD")
+    OS_VERSION=bsd
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_OS_BSD
+_ACEOF
+
+    ;;
+  "NetBSD")
+    OS_VERSION=bsd
+
+cat >>confdefs.h <<\_ACEOF
+#define STRESSAPPTEST_OS_BSD
+_ACEOF
+
+    ;;
+  *)
+    { { echo "$as_me:$LINENO: error: $_os operating system is not suitable to build dmake!" >&5
+echo "$as_me: error: $_os operating system is not suitable to build dmake!" >&2;}
+   { (exit 1); exit 1; }; }
+    ;;
+esac
+
+am__api_version='1.10'
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+{ echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6; }
+if test -z "$INSTALL"; then
+if test "${ac_cv_path_install+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in
+  ./ | .// | /cC/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	    break 3
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+done
+IFS=$as_save_IFS
+
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ echo "$as_me:$LINENO: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ echo "$as_me:$LINENO: checking whether build environment is sane" >&5
+echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6; }
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+   if test "$*" = "X"; then
+      # -L didn't work.
+      set X `ls -t $srcdir/configure conftest.file`
+   fi
+   rm -f conftest.file
+   if test "$*" != "X $srcdir/configure conftest.file" \
+      && test "$*" != "X conftest.file $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      { { echo "$as_me:$LINENO: error: ls -t appears to fail.  Make sure there is not a broken
+alias in your environment" >&5
+echo "$as_me: error: ls -t appears to fail.  Make sure there is not a broken
+alias in your environment" >&2;}
+   { (exit 1); exit 1; }; }
+   fi
+
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
+Check your system clock" >&5
+echo "$as_me: error: newly created file is older than distributed files!
+Check your system clock" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+{ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.  echo might interpret backslashes.
+# By default was `s,x,x', remove it if useless.
+cat <<\_ACEOF >conftest.sed
+s/[\\$]/&&/g;s/;s,x,x,$//
+_ACEOF
+program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
+rm -f conftest.sed
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  { echo "$as_me:$LINENO: WARNING: \`missing' script is too old or missing" >&5
+echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
+fi
+
+{ echo "$as_me:$LINENO: checking for a thread-safe mkdir -p" >&5
+echo $ECHO_N "checking for a thread-safe mkdir -p... $ECHO_C" >&6; }
+if test -z "$MKDIR_P"; then
+  if test "${ac_cv_path_mkdir+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; } || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+done
+IFS=$as_save_IFS
+
+fi
+
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    test -d ./--version && rmdir ./--version
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ echo "$as_me:$LINENO: result: $MKDIR_P" >&5
+echo "${ECHO_T}$MKDIR_P" >&6; }
+
+mkdir_p="$MKDIR_P"
+case $mkdir_p in
+  [\\/$]* | ?:[\\/]*) ;;
+  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
+esac
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_AWK+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_AWK="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { echo "$as_me:$LINENO: result: $AWK" >&5
+echo "${ECHO_T}$AWK" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6; }
+set x ${MAKE-make}; ac_make=`echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if { as_var=ac_cv_prog_make_${ac_make}_set; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+  SET_MAKE=
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
+echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
+   { (exit 1); exit 1; }; }
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='stressapptest'
+ VERSION='1.0.3_autoconf'
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+install_sh=${install_sh-"\$(SHELL) $am_aux_dir/install-sh"}
+
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'.  However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { echo "$as_me:$LINENO: result: $STRIP" >&5
+echo "${ECHO_T}$STRIP" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
+echo "${ECHO_T}$ac_ct_STRIP" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&5
+echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+# Always define AMTAR for backward compatibility.
+
+AMTAR=${AMTAR-"${am_missing_run}tar"}
+
+am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
+
+
+
+
+
+
+ac_config_headers="$ac_config_headers src/stressapptest_config.h"
+
+
+# Checks for programs.
+#  Don't generate CXXFLAGS defaults: if CXXFLAGS are unset
+#  AC_PROG_CXX will override them with unwanted defaults.
+CXXFLAGS="$CXXFLAGS"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { echo "$as_me:$LINENO: result: $CXX" >&5
+echo "${ECHO_T}$CXX" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
+echo "${ECHO_T}$ac_ct_CXX" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&5
+echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+echo "$as_me:$LINENO: checking for C++ compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (ac_try="$ac_compiler --version >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler --version >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (ac_try="$ac_compiler -v >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler -v >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (ac_try="$ac_compiler -V >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler -V >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ echo "$as_me:$LINENO: checking for C++ compiler default output file name" >&5
+echo $ECHO_N "checking for C++ compiler default output file name... $ECHO_C" >&6; }
+ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+#
+# List of possible output files, starting from the most likely.
+# The algorithm is not robust to junk in `.', hence go to wildcards (a.*)
+# only as a last resort.  b.out is created by i960 compilers.
+ac_files='a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out'
+#
+# The IRIX 6 linker writes into existing files which may not be
+# executable, retaining their permissions.  Remove them first so a
+# subsequent execution test works.
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { (ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+        if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+
+{ echo "$as_me:$LINENO: result: $ac_file" >&5
+echo "${ECHO_T}$ac_file" >&6; }
+if test -z "$ac_file"; then
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { echo "$as_me:$LINENO: error: C++ compiler cannot create executables
+See \`config.log' for more details." >&5
+echo "$as_me: error: C++ compiler cannot create executables
+See \`config.log' for more details." >&2;}
+   { (exit 77); exit 77; }; }
+fi
+
+ac_exeext=$ac_cv_exeext
+
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ echo "$as_me:$LINENO: checking whether the C++ compiler works" >&5
+echo $ECHO_N "checking whether the C++ compiler works... $ECHO_C" >&6; }
+# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
+# If not cross compiling, check that we can run a simple program.
+if test "$cross_compiling" != yes; then
+  if { ac_try='./$ac_file'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { echo "$as_me:$LINENO: error: cannot run C++ compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot run C++ compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+    fi
+  fi
+fi
+{ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+
+rm -f a.out a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
+echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: result: $cross_compiling" >&5
+echo "${ECHO_T}$cross_compiling" >&6; }
+
+{ echo "$as_me:$LINENO: checking for suffix of executables" >&5
+echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6; }
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest$ac_cv_exeext
+{ echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
+echo "${ECHO_T}$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+{ echo "$as_me:$LINENO: checking for suffix of object files" >&5
+echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6; }
+if test "${ac_cv_objext+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
+echo "${ECHO_T}$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6; }
+if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_compiler_gnu=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6; }
+GXX=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
+echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6; }
+if test "${ac_cv_prog_cxx_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_prog_cxx_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	CXXFLAGS=""
+      cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_prog_cxx_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo done
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+{ echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
+echo $ECHO_N "checking for style of include used by $am_make... $ECHO_C" >&6; }
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
+   am__include=include
+   am__quote=
+   _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+      am__include=.include
+      am__quote="\""
+      _am_result=BSD
+   fi
+fi
+
+
+{ echo "$as_me:$LINENO: result: $_am_result" >&5
+echo "${ECHO_T}$_am_result" >&6; }
+rm -f confinc confmf
+
+# Check whether --enable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+
+depcc="$CXX"  am_compiler_list=
+
+{ echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6; }
+if test "${am_cv_CXX_dependencies_compiler_type+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CXX_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+      # Solaris 8's {/usr,}/bin/sh.
+      touch sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    case $depmode in
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    none) break ;;
+    esac
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.
+    if depmode=$depmode \
+       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CXX_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+{ echo "$as_me:$LINENO: result: $am_cv_CXX_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CXX_dependencies_compiler_type" >&6; }
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
+  am__fastdepCXX_TRUE=
+  am__fastdepCXX_FALSE='#'
+else
+  am__fastdepCXX_TRUE='#'
+  am__fastdepCXX_FALSE=
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&5
+echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&5
+echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&5
+echo "$as_me: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO: checking for C compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (ac_try="$ac_compiler --version >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler --version >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (ac_try="$ac_compiler -v >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler -v >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (ac_try="$ac_compiler -V >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler -V >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+
+{ echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6; }
+if test "${ac_cv_c_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_compiler_gnu=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6; }
+GCC=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6; }
+if test "${ac_cv_prog_cc_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_prog_cc_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	CFLAGS=""
+      cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_prog_cc_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5
+echo $ECHO_N "checking for $CC option to accept ISO C89... $ECHO_C" >&6; }
+if test "${ac_cv_prog_cc_c89+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_prog_cc_c89=$ac_arg
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6; } ;;
+  xno)
+    { echo "$as_me:$LINENO: result: unsupported" >&5
+echo "${ECHO_T}unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c89" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CC"   am_compiler_list=
+
+{ echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6; }
+if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+      # Solaris 8's {/usr,}/bin/sh.
+      touch sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    case $depmode in
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    none) break ;;
+    esac
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.
+    if depmode=$depmode \
+       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+
+#Getting user and host info
+username=$(whoami)
+{ echo "$as_me:$LINENO: checking user ID" >&5
+echo $ECHO_N "checking user ID... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: result: $username" >&5
+echo "${ECHO_T}$username" >&6; }
+
+hostname=$(uname -n)
+{ echo "$as_me:$LINENO: checking host name" >&5
+echo $ECHO_N "checking host name... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: result: $hostname" >&5
+echo "${ECHO_T}$hostname" >&6; }
+
+timestamp=$(date)
+{ echo "$as_me:$LINENO: checking current timestamp" >&5
+echo $ECHO_N "checking current timestamp... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: result: $timestamp" >&5
+echo "${ECHO_T}$timestamp" >&6; }
+
+
+cat >>confdefs.h <<_ACEOF
+#define STRESSAPPTEST_TIMESTAMP "$username @ $hostname on $timestamp"
+_ACEOF
+
+
+#Default cxxflags
+CXXFLAGS="$CXXFLAGS -DCHECKOPTS"
+CXXFLAGS="$CXXFLAGS -Wreturn-type -Wunused -Wuninitialized -Wall -Wno-psabi"
+CXXFLAGS="$CXXFLAGS -O3 -funroll-all-loops  -funroll-loops -DNDEBUG"
+
+# Checks for header files.
+
+
+
+
+
+
+ac_header_dirent=no
+for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
+  as_ac_Header=`echo "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
+{ echo "$as_me:$LINENO: checking for $ac_hdr that defines DIR" >&5
+echo $ECHO_N "checking for $ac_hdr that defines DIR... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <$ac_hdr>
+
+int
+main ()
+{
+if ((DIR *) 0)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_Header=no"
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_hdr" | $as_tr_cpp` 1
+_ACEOF
+
+ac_header_dirent=$ac_hdr; break
+fi
+
+done
+# Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
+if test $ac_header_dirent = dirent.h; then
+  { echo "$as_me:$LINENO: checking for library containing opendir" >&5
+echo $ECHO_N "checking for library containing opendir... $ECHO_C" >&6; }
+if test "${ac_cv_search_opendir+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char opendir ();
+int
+main ()
+{
+return opendir ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' dir; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_cv_search_opendir=$ac_res
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext
+  if test "${ac_cv_search_opendir+set}" = set; then
+  break
+fi
+done
+if test "${ac_cv_search_opendir+set}" = set; then
+  :
+else
+  ac_cv_search_opendir=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_search_opendir" >&5
+echo "${ECHO_T}$ac_cv_search_opendir" >&6; }
+ac_res=$ac_cv_search_opendir
+if test "$ac_res" != no; then
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+else
+  { echo "$as_me:$LINENO: checking for library containing opendir" >&5
+echo $ECHO_N "checking for library containing opendir... $ECHO_C" >&6; }
+if test "${ac_cv_search_opendir+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char opendir ();
+int
+main ()
+{
+return opendir ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' x; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_cv_search_opendir=$ac_res
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext
+  if test "${ac_cv_search_opendir+set}" = set; then
+  break
+fi
+done
+if test "${ac_cv_search_opendir+set}" = set; then
+  :
+else
+  ac_cv_search_opendir=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_search_opendir" >&5
+echo "${ECHO_T}$ac_cv_search_opendir" >&6; }
+ac_res=$ac_cv_search_opendir
+if test "$ac_res" != no; then
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
+echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if test "${ac_cv_prog_CPP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Broken: fails on valid input.
+continue
+fi
+
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ echo "$as_me:$LINENO: result: $CPP" >&5
+echo "${ECHO_T}$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Broken: fails on valid input.
+continue
+fi
+
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  :
+else
+  { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." >&5
+echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
+echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; }
+if test "${ac_cv_path_GREP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  # Extract the first word of "grep ggrep" to use in msg output
+if test -z "$GREP"; then
+set dummy grep ggrep; ac_prog_name=$2
+if test "${ac_cv_path_GREP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_path_GREP_found=false
+# Loop through the user's path and test for each of PROGNAME-LIST
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_prog in grep ggrep; do
+  for ac_exec_ext in '' $ac_executable_extensions; do
+    ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+    { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+    # Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    ac_count=`expr $ac_count + 1`
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+
+    $ac_path_GREP_found && break 3
+  done
+done
+
+done
+IFS=$as_save_IFS
+
+
+fi
+
+GREP="$ac_cv_path_GREP"
+if test -z "$GREP"; then
+  { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
+echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
+echo "${ECHO_T}$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ echo "$as_me:$LINENO: checking for egrep" >&5
+echo $ECHO_N "checking for egrep... $ECHO_C" >&6; }
+if test "${ac_cv_path_EGREP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     # Extract the first word of "egrep" to use in msg output
+if test -z "$EGREP"; then
+set dummy egrep; ac_prog_name=$2
+if test "${ac_cv_path_EGREP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_path_EGREP_found=false
+# Loop through the user's path and test for each of PROGNAME-LIST
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_prog in egrep; do
+  for ac_exec_ext in '' $ac_executable_extensions; do
+    ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+    { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+    # Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    ac_count=`expr $ac_count + 1`
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+
+    $ac_path_EGREP_found && break 3
+  done
+done
+
+done
+IFS=$as_save_IFS
+
+
+fi
+
+EGREP="$ac_cv_path_EGREP"
+if test -z "$EGREP"; then
+  { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
+echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+
+   fi
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
+echo "${ECHO_T}$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6; }
+if test "${ac_cv_header_stdc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_header_stdc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_header_stdc=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then
+  :
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+
+
+fi
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+echo "${ECHO_T}$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STDC_HEADERS 1
+_ACEOF
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+
+
+
+
+
+
+
+
+
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+{ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_Header=no"
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+
+
+
+
+
+
+
+
+
+
+for ac_header in arpa/inet.h fcntl.h malloc.h netdb.h stdint.h stdlib.h string.h sys/ioctl.h sys/socket.h sys/time.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  { echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_header_compiler=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <$ac_header>
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+
+rm -f conftest.err conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+    ( cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to opensource@google.com ##
+## ------------------------------------ ##
+_ASBOX
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+{ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=\$ac_header_preproc"
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+for ac_header in pthread.h libaio.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  { echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_header_compiler=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <$ac_header>
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+
+rm -f conftest.err conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+    ( cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to opensource@google.com ##
+## ------------------------------------ ##
+_ASBOX
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+{ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=\$ac_header_preproc"
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+# Checks for typedefs, structures, and compiler characteristics.
+{ echo "$as_me:$LINENO: checking for stdbool.h that conforms to C99" >&5
+echo $ECHO_N "checking for stdbool.h that conforms to C99... $ECHO_C" >&6; }
+if test "${ac_cv_header_stdbool_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+#include <stdbool.h>
+#ifndef bool
+ "error: bool is not defined"
+#endif
+#ifndef false
+ "error: false is not defined"
+#endif
+#if false
+ "error: false is not 0"
+#endif
+#ifndef true
+ "error: true is not defined"
+#endif
+#if true != 1
+ "error: true is not 1"
+#endif
+#ifndef __bool_true_false_are_defined
+ "error: __bool_true_false_are_defined is not defined"
+#endif
+
+	struct s { _Bool s: 1; _Bool t; } s;
+
+	char a[true == 1 ? 1 : -1];
+	char b[false == 0 ? 1 : -1];
+	char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+	char d[(bool) 0.5 == true ? 1 : -1];
+	bool e = &s;
+	char f[(_Bool) 0.0 == false ? 1 : -1];
+	char g[true];
+	char h[sizeof (_Bool)];
+	char i[sizeof s.t];
+	enum { j = false, k = true, l = false * true, m = true * 256 };
+	_Bool n[m];
+	char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+	char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+#	if defined __xlc__ || defined __GNUC__
+	 /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
+	    reported by James Lemley on 2005-10-05; see
+	    http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+	    This test is not quite right, since xlc is allowed to
+	    reject this program, as the initializer for xlcbug is
+	    not one of the forms that C requires support for.
+	    However, doing the test right would require a runtime
+	    test, and that would make cross-compilation harder.
+	    Let us hope that IBM fixes the xlc bug, and also adds
+	    support for this kind of constant expression.  In the
+	    meantime, this test will reject xlc, which is OK, since
+	    our stdbool.h substitute should suffice.  We also test
+	    this with GCC, where it should work, to detect more
+	    quickly whether someone messes up the test in the
+	    future.  */
+	 char digs[] = "0123456789";
+	 int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
+#	endif
+	/* Catch a bug in an HP-UX C compiler.  See
+	   http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+	   http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+	 */
+	_Bool q = true;
+	_Bool *pq = &q;
+
+int
+main ()
+{
+
+	*pq |= q;
+	*pq |= ! q;
+	/* Refer to every declared value, to avoid compiler optimizations.  */
+	return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+		+ !m + !n + !o + !p + !q + !pq);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_header_stdbool_h=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_header_stdbool_h=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_header_stdbool_h" >&5
+echo "${ECHO_T}$ac_cv_header_stdbool_h" >&6; }
+{ echo "$as_me:$LINENO: checking for _Bool" >&5
+echo $ECHO_N "checking for _Bool... $ECHO_C" >&6; }
+if test "${ac_cv_type__Bool+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+typedef _Bool ac__type_new_;
+int
+main ()
+{
+if ((ac__type_new_ *) 0)
+  return 0;
+if (sizeof (ac__type_new_))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_type__Bool=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_type__Bool=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_type__Bool" >&5
+echo "${ECHO_T}$ac_cv_type__Bool" >&6; }
+if test $ac_cv_type__Bool = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE__BOOL 1
+_ACEOF
+
+
+fi
+
+if test $ac_cv_header_stdbool_h = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_STDBOOL_H 1
+_ACEOF
+
+fi
+
+{ echo "$as_me:$LINENO: checking for an ANSI C-conforming const" >&5
+echo $ECHO_N "checking for an ANSI C-conforming const... $ECHO_C" >&6; }
+if test "${ac_cv_c_const+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+/* FIXME: Include the comments suggested by Paul. */
+#ifndef __cplusplus
+  /* Ultrix mips cc rejects this.  */
+  typedef int charset[2];
+  const charset cs;
+  /* SunOS 4.1.1 cc rejects this.  */
+  char const *const *pcpcc;
+  char **ppc;
+  /* NEC SVR4.0.2 mips cc rejects this.  */
+  struct point {int x, y;};
+  static struct point const zero = {0,0};
+  /* AIX XL C 1.02.0.0 rejects this.
+     It does not let you subtract one const X* pointer from another in
+     an arm of an if-expression whose if-part is not a constant
+     expression */
+  const char *g = "string";
+  pcpcc = &g + (g ? g-g : 0);
+  /* HPUX 7.0 cc rejects these. */
+  ++pcpcc;
+  ppc = (char**) pcpcc;
+  pcpcc = (char const *const *) ppc;
+  { /* SCO 3.2v4 cc rejects this.  */
+    char *t;
+    char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+    *t++ = 0;
+    if (s) return 0;
+  }
+  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+    int x[] = {25, 17};
+    const int *foo = &x[0];
+    ++foo;
+  }
+  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+    typedef const int *iptr;
+    iptr p = 0;
+    ++p;
+  }
+  { /* AIX XL C 1.02.0.0 rejects this saying
+       "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+    struct s { int j; const int *ap[3]; };
+    struct s *b; b->j = 5;
+  }
+  { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+    const int foo = 10;
+    if (!foo) return 0;
+  }
+  return !cs[0] && !zero.x;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_c_const=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_c_const=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_c_const" >&5
+echo "${ECHO_T}$ac_cv_c_const" >&6; }
+if test $ac_cv_c_const = no; then
+
+cat >>confdefs.h <<\_ACEOF
+#define const
+_ACEOF
+
+fi
+
+{ echo "$as_me:$LINENO: checking for inline" >&5
+echo $ECHO_N "checking for inline... $ECHO_C" >&6; }
+if test "${ac_cv_c_inline+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_c_inline=no
+for ac_kw in inline __inline__ __inline; do
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#ifndef __cplusplus
+typedef int foo_t;
+static $ac_kw foo_t static_foo () {return 0; }
+$ac_kw foo_t foo () {return 0; }
+#endif
+
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_c_inline=$ac_kw
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  test "$ac_cv_c_inline" != no && break
+done
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5
+echo "${ECHO_T}$ac_cv_c_inline" >&6; }
+
+
+case $ac_cv_c_inline in
+  inline | yes) ;;
+  *)
+    case $ac_cv_c_inline in
+      no) ac_val=;;
+      *) ac_val=$ac_cv_c_inline;;
+    esac
+    cat >>confdefs.h <<_ACEOF
+#ifndef __cplusplus
+#define inline $ac_val
+#endif
+_ACEOF
+    ;;
+esac
+
+{ echo "$as_me:$LINENO: checking for pid_t" >&5
+echo $ECHO_N "checking for pid_t... $ECHO_C" >&6; }
+if test "${ac_cv_type_pid_t+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+typedef pid_t ac__type_new_;
+int
+main ()
+{
+if ((ac__type_new_ *) 0)
+  return 0;
+if (sizeof (ac__type_new_))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_type_pid_t=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_type_pid_t=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_type_pid_t" >&5
+echo "${ECHO_T}$ac_cv_type_pid_t" >&6; }
+if test $ac_cv_type_pid_t = yes; then
+  :
+else
+
+cat >>confdefs.h <<_ACEOF
+#define pid_t int
+_ACEOF
+
+fi
+
+{ echo "$as_me:$LINENO: checking for C/C++ restrict keyword" >&5
+echo $ECHO_N "checking for C/C++ restrict keyword... $ECHO_C" >&6; }
+if test "${ac_cv_c_restrict+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_c_restrict=no
+   # Try the official restrict keyword, then gcc's __restrict, and
+   # the less common variants.
+   for ac_kw in restrict __restrict __restrict__ _Restrict; do
+     cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+typedef int * int_ptr;
+        int foo (int_ptr $ac_kw ip) {
+        return ip[0];
+       }
+int
+main ()
+{
+int s[1];
+        int * $ac_kw t = s;
+        t[0] = 0;
+        return foo(t)
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_c_restrict=$ac_kw
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     test "$ac_cv_c_restrict" != no && break
+   done
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_c_restrict" >&5
+echo "${ECHO_T}$ac_cv_c_restrict" >&6; }
+ case $ac_cv_c_restrict in
+   restrict) ;;
+   no)
+cat >>confdefs.h <<\_ACEOF
+#define restrict
+_ACEOF
+ ;;
+   *)  cat >>confdefs.h <<_ACEOF
+#define restrict $ac_cv_c_restrict
+_ACEOF
+ ;;
+ esac
+
+{ echo "$as_me:$LINENO: checking for ssize_t" >&5
+echo $ECHO_N "checking for ssize_t... $ECHO_C" >&6; }
+if test "${ac_cv_type_ssize_t+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+typedef ssize_t ac__type_new_;
+int
+main ()
+{
+if ((ac__type_new_ *) 0)
+  return 0;
+if (sizeof (ac__type_new_))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_type_ssize_t=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_type_ssize_t=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_type_ssize_t" >&5
+echo "${ECHO_T}$ac_cv_type_ssize_t" >&6; }
+if test $ac_cv_type_ssize_t = yes; then
+  :
+else
+
+cat >>confdefs.h <<_ACEOF
+#define ssize_t int
+_ACEOF
+
+fi
+
+{ echo "$as_me:$LINENO: checking whether time.h and sys/time.h may both be included" >&5
+echo $ECHO_N "checking whether time.h and sys/time.h may both be included... $ECHO_C" >&6; }
+if test "${ac_cv_header_time+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <sys/time.h>
+#include <time.h>
+
+int
+main ()
+{
+if ((struct tm *) 0)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_header_time=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_header_time=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_header_time" >&5
+echo "${ECHO_T}$ac_cv_header_time" >&6; }
+if test $ac_cv_header_time = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define TIME_WITH_SYS_TIME 1
+_ACEOF
+
+fi
+
+
+  { echo "$as_me:$LINENO: checking for uint16_t" >&5
+echo $ECHO_N "checking for uint16_t... $ECHO_C" >&6; }
+if test "${ac_cv_c_uint16_t+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_c_uint16_t=no
+     for ac_type in 'uint16_t' 'unsigned int' 'unsigned long int' \
+	 'unsigned long long int' 'unsigned short int' 'unsigned char'; do
+       cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+static int test_array [1 - 2 * !(($ac_type) -1 >> (16 - 1) == 1)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  case $ac_type in
+  uint16_t) ac_cv_c_uint16_t=yes ;;
+  *) ac_cv_c_uint16_t=$ac_type ;;
+esac
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       test "$ac_cv_c_uint16_t" != no && break
+     done
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_c_uint16_t" >&5
+echo "${ECHO_T}$ac_cv_c_uint16_t" >&6; }
+  case $ac_cv_c_uint16_t in #(
+  no|yes) ;; #(
+  *)
+
+
+cat >>confdefs.h <<_ACEOF
+#define uint16_t $ac_cv_c_uint16_t
+_ACEOF
+;;
+  esac
+
+{ echo "$as_me:$LINENO: checking for working volatile" >&5
+echo $ECHO_N "checking for working volatile... $ECHO_C" >&6; }
+if test "${ac_cv_c_volatile+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+volatile int x;
+int * volatile y = (int *) 0;
+return !x && !y;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_c_volatile=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_c_volatile=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_c_volatile" >&5
+echo "${ECHO_T}$ac_cv_c_volatile" >&6; }
+if test $ac_cv_c_volatile = no; then
+
+cat >>confdefs.h <<\_ACEOF
+#define volatile
+_ACEOF
+
+fi
+
+
+
+# These are the libraries stressapptest requires to build.
+# We'll check that they work, and fail otherwise.
+# In the future we may provide for testing alternate
+# arguments, but that's not necessary now.
+LIBS="$LIBS -static -lrt -pthread -laio"
+
+# Checking for pthreads
+pthread_arg="not_available"
+{ echo "$as_me:$LINENO: checking if pthreads is supported" >&5
+echo $ECHO_N "checking if pthreads is supported... $ECHO_C" >&6; }
+
+pthread_header="#include<pthread.h>"
+pthread_body="pthread_create(0,0,0,0)"
+# Check if compile with no extra argument
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$pthread_header
+int
+main ()
+{
+$pthread_body
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  pthread_arg=""
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+
+if test x"$pthread_arg" = x"not_available"; then
+  { { echo "$as_me:$LINENO: error: Cannot find a proper pthread library
+See \`config.log' for more details." >&5
+echo "$as_me: error: Cannot find a proper pthread library
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+else
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+fi
+
+# Checking for libaio
+libaio_arg="not_available"
+{ echo "$as_me:$LINENO: checking if libaio is supported" >&5
+echo $ECHO_N "checking if libaio is supported... $ECHO_C" >&6; }
+
+libaio_header="#include<libaio.h>"
+libaio_body="io_submit(0,0,0)"
+# Check if compile with no extra argument
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$libaio_header
+int
+main ()
+{
+$libaio_body
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  libaio_arg=""
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+
+if test x"$libaio_arg" = x"not_available"; then
+  { { echo "$as_me:$LINENO: error: Cannot find libaio library, please install libaio-dev
+See \`config.log' for more details." >&5
+echo "$as_me: error: Cannot find libaio library, please install libaio-dev
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+else
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+fi
+
+# Checking for librt
+librt_arg="not_available"
+{ echo "$as_me:$LINENO: checking if librt is supported" >&5
+echo $ECHO_N "checking if librt is supported... $ECHO_C" >&6; }
+
+librt_header="#include<sys/shm.h>"
+librt_body="shm_open(0, 0, 0)"
+# Check if compile with no extra argument
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$librt_header
+int
+main ()
+{
+$librt_body
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  librt_arg=""
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+
+if test x"$librt_arg" = x"not_available"; then
+  { { echo "$as_me:$LINENO: error: Cannot find librt library
+See \`config.log' for more details." >&5
+echo "$as_me: error: Cannot find librt library
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+else
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+fi
+
+
+# Checks for library functions.
+{ echo "$as_me:$LINENO: checking whether closedir returns void" >&5
+echo $ECHO_N "checking whether closedir returns void... $ECHO_C" >&6; }
+if test "${ac_cv_func_closedir_void+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_func_closedir_void=yes
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header_dirent>
+#ifndef __cplusplus
+int closedir ();
+#endif
+
+int
+main ()
+{
+return closedir (opendir (".")) != 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_closedir_void=no
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_func_closedir_void=yes
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_func_closedir_void" >&5
+echo "${ECHO_T}$ac_cv_func_closedir_void" >&6; }
+if test $ac_cv_func_closedir_void = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define CLOSEDIR_VOID 1
+_ACEOF
+
+fi
+
+if test $ac_cv_c_compiler_gnu = yes; then
+    { echo "$as_me:$LINENO: checking whether $CC needs -traditional" >&5
+echo $ECHO_N "checking whether $CC needs -traditional... $ECHO_C" >&6; }
+if test "${ac_cv_prog_gcc_traditional+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+    ac_pattern="Autoconf.*'x'"
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sgtty.h>
+Autoconf TIOCGETP
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "$ac_pattern" >/dev/null 2>&1; then
+  ac_cv_prog_gcc_traditional=yes
+else
+  ac_cv_prog_gcc_traditional=no
+fi
+rm -f conftest*
+
+
+  if test $ac_cv_prog_gcc_traditional = no; then
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <termio.h>
+Autoconf TCGETA
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "$ac_pattern" >/dev/null 2>&1; then
+  ac_cv_prog_gcc_traditional=yes
+fi
+rm -f conftest*
+
+  fi
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_prog_gcc_traditional" >&5
+echo "${ECHO_T}$ac_cv_prog_gcc_traditional" >&6; }
+  if test $ac_cv_prog_gcc_traditional = yes; then
+    CC="$CC -traditional"
+  fi
+fi
+
+
+
+for ac_header in sys/select.h sys/socket.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  { echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_header_compiler=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <$ac_header>
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+
+rm -f conftest.err conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+    ( cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to opensource@google.com ##
+## ------------------------------------ ##
+_ASBOX
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+{ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
+if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=\$ac_header_preproc"
+fi
+ac_res=`eval echo '${'$as_ac_Header'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+{ echo "$as_me:$LINENO: checking types of arguments for select" >&5
+echo $ECHO_N "checking types of arguments for select... $ECHO_C" >&6; }
+if test "${ac_cv_func_select_args+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  for ac_arg234 in 'fd_set *' 'int *' 'void *'; do
+ for ac_arg1 in 'int' 'size_t' 'unsigned long int' 'unsigned int'; do
+  for ac_arg5 in 'struct timeval *' 'const struct timeval *'; do
+   cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+
+int
+main ()
+{
+extern int select ($ac_arg1,
+					    $ac_arg234, $ac_arg234, $ac_arg234,
+					    $ac_arg5);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_func_select_args="$ac_arg1,$ac_arg234,$ac_arg5"; break 3
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+ done
+done
+# Provide a safe default value.
+: ${ac_cv_func_select_args='int,int *,struct timeval *'}
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_func_select_args" >&5
+echo "${ECHO_T}$ac_cv_func_select_args" >&6; }
+ac_save_IFS=$IFS; IFS=','
+set dummy `echo "$ac_cv_func_select_args" | sed 's/\*/\*/g'`
+IFS=$ac_save_IFS
+shift
+
+cat >>confdefs.h <<_ACEOF
+#define SELECT_TYPE_ARG1 $1
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define SELECT_TYPE_ARG234 ($2)
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define SELECT_TYPE_ARG5 ($3)
+_ACEOF
+
+rm -f conftest*
+
+{ echo "$as_me:$LINENO: checking return type of signal handlers" >&5
+echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6; }
+if test "${ac_cv_type_signal+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <signal.h>
+
+int
+main ()
+{
+return *(signal (0, 0)) (0) == 1;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_type_signal=int
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_type_signal=void
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5
+echo "${ECHO_T}$ac_cv_type_signal" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define RETSIGTYPE $ac_cv_type_signal
+_ACEOF
+
+
+{ echo "$as_me:$LINENO: checking whether strerror_r is declared" >&5
+echo $ECHO_N "checking whether strerror_r is declared... $ECHO_C" >&6; }
+if test "${ac_cv_have_decl_strerror_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strerror_r
+  (void) strerror_r;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_have_decl_strerror_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_have_decl_strerror_r=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_have_decl_strerror_r" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strerror_r" >&6; }
+if test $ac_cv_have_decl_strerror_r = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR_R 1
+_ACEOF
+
+
+else
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR_R 0
+_ACEOF
+
+
+fi
+
+
+
+for ac_func in strerror_r
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+{ echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; }
+if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$ac_func || defined __stub___$ac_func
+choke me
+#endif
+
+int
+main ()
+{
+return $ac_func ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_var=no"
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+ac_res=`eval echo '${'$as_ac_var'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+{ echo "$as_me:$LINENO: checking whether strerror_r returns char *" >&5
+echo $ECHO_N "checking whether strerror_r returns char *... $ECHO_C" >&6; }
+if test "${ac_cv_func_strerror_r_char_p+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+    ac_cv_func_strerror_r_char_p=no
+    if test $ac_cv_have_decl_strerror_r = yes; then
+      cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+
+	  char buf[100];
+	  char x = *strerror_r (0, buf, sizeof buf);
+	  char *p = strerror_r (0, buf, sizeof buf);
+	  return !p || x;
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_func_strerror_r_char_p=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    else
+      # strerror_r is not declared.  Choose between
+      # systems that have relatively inaccessible declarations for the
+      # function.  BeOS and DEC UNIX 4.0 fall in this category, but the
+      # former has a strerror_r that returns char*, while the latter
+      # has a strerror_r that returns `int'.
+      # This test should segfault on the DEC system.
+      if test "$cross_compiling" = yes; then
+  :
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+	extern char *strerror_r ();
+int
+main ()
+{
+char buf[100];
+	  char x = *strerror_r (0, buf, sizeof buf);
+	  return ! isalpha (x);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_strerror_r_char_p=yes
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+
+
+    fi
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_func_strerror_r_char_p" >&5
+echo "${ECHO_T}$ac_cv_func_strerror_r_char_p" >&6; }
+if test $ac_cv_func_strerror_r_char_p = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STRERROR_R_CHAR_P 1
+_ACEOF
+
+fi
+
+
+for ac_func in vprintf
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+{ echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; }
+if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$ac_func || defined __stub___$ac_func
+choke me
+#endif
+
+int
+main ()
+{
+return $ac_func ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_var=no"
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+ac_res=`eval echo '${'$as_ac_var'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+{ echo "$as_me:$LINENO: checking for _doprnt" >&5
+echo $ECHO_N "checking for _doprnt... $ECHO_C" >&6; }
+if test "${ac_cv_func__doprnt+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define _doprnt to an innocuous variant, in case <limits.h> declares _doprnt.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define _doprnt innocuous__doprnt
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char _doprnt (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef _doprnt
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char _doprnt ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub__doprnt || defined __stub____doprnt
+choke me
+#endif
+
+int
+main ()
+{
+return _doprnt ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_cv_func__doprnt=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_func__doprnt=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_func__doprnt" >&5
+echo "${ECHO_T}$ac_cv_func__doprnt" >&6; }
+if test $ac_cv_func__doprnt = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_DOPRNT 1
+_ACEOF
+
+fi
+
+fi
+done
+
+
+
+
+
+
+
+
+for ac_func in gettimeofday memset select socket strtol strtoull
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+{ echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; }
+if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$ac_func || defined __stub___$ac_func
+choke me
+#endif
+
+int
+main ()
+{
+return $ac_func ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_var=no"
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+ac_res=`eval echo '${'$as_ac_var'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+ac_config_files="$ac_config_files Makefile src/Makefile"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { echo "$as_me:$LINENO: WARNING: Cache variable $ac_var contains a newline." >&5
+echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      *) $as_unset $ac_var ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes (double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \).
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    test "x$cache_file" != "x/dev/null" &&
+      { echo "$as_me:$LINENO: updating cache $cache_file" >&5
+echo "$as_me: updating cache $cache_file" >&6;}
+    cat confcache >$cache_file
+  else
+    { echo "$as_me:$LINENO: not updating unwritable cache $cache_file" >&5
+echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  { { echo "$as_me:$LINENO: error: conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
+  { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+: ${CONFIG_STATUS=./config.status}
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
+echo "$as_me: creating $CONFIG_STATUS" >&6;}
+cat >$CONFIG_STATUS <<_ACEOF
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+SHELL=\${CONFIG_SHELL-$SHELL}
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+## --------------------- ##
+## M4sh Initialization.  ##
+## --------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in
+  *posix*) set -o posix ;;
+esac
+
+fi
+
+
+
+
+# PATH needs CR
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conf$$.sh
+  echo  "exit 0"   >>conf$$.sh
+  chmod +x conf$$.sh
+  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conf$$.sh
+fi
+
+# Support unset when possible.
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  as_unset=unset
+else
+  as_unset=false
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+as_nl='
+'
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+case $0 in
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  { (exit 1); exit 1; }
+fi
+
+# Work around bugs in pre-3.0 UWIN ksh.
+for as_var in ENV MAIL MAILPATH
+do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+  LC_TELEPHONE LC_TIME
+do
+  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+    eval $as_var=C; export $as_var
+  else
+    ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+  fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# CDPATH.
+$as_unset CDPATH
+
+
+
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
+
+  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+  # uniformly replaced by the line number.  The first 'sed' inserts a
+  # line-number line after each line using $LINENO; the second 'sed'
+  # does the real work.  The second script uses 'N' to pair each
+  # line-number line with the line containing $LINENO, and appends
+  # trailing '-' during substitution so that $LINENO is not a special
+  # case at line end.
+  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+  # scripts with optimization help from Paolo Bonzini.  Blame Lee
+  # E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
+   { (exit 1); exit 1; }; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in
+-n*)
+  case `echo 'x\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  *)   ECHO_C='\c';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir
+fi
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s='ln -s'
+  # ... but there are two gotchas:
+  # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+  # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+  # In both cases, we have to default to `cp -p'.
+  ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+    as_ln_s='cp -p'
+elif ln conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s=ln
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p=:
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+if test -x / >/dev/null 2>&1; then
+  as_test_x='test -x'
+else
+  if ls -dL / >/dev/null 2>&1; then
+    as_ls_L_option=L
+  else
+    as_ls_L_option=
+  fi
+  as_test_x='
+    eval sh -c '\''
+      if test -d "$1"; then
+        test -d "$1/.";
+      else
+	case $1 in
+        -*)set "./$1";;
+	esac;
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
+	???[sx]*):;;*)false;;esac;fi
+    '\'' sh
+  '
+fi
+as_executable_p=$as_test_x
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+
+# Save the log message, to keep $[0] and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by stressapptest $as_me 1.0.3_autoconf, which was
+generated by GNU Autoconf 2.61.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+ac_cs_usage="\
+\`$as_me' instantiates files from templates according to the
+current configuration.
+
+Usage: $0 [OPTIONS] [FILE]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+  -q, --quiet      do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+  --file=FILE[:TEMPLATE]
+		   instantiate the configuration file FILE
+  --header=FILE[:TEMPLATE]
+		   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to <bug-autoconf@gnu.org>."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+ac_cs_version="\\
+stressapptest config.status 1.0.3_autoconf
+configured by $0, generated by GNU Autoconf 2.61,
+  with options \\"`echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
+
+Copyright (C) 2006 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+# If no file are specified by the user, then we need to provide default
+# value.  By we need to know if files were specified by the user.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    echo "$ac_cs_version"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    CONFIG_FILES="$CONFIG_FILES $ac_optarg"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
+    ac_need_defaults=false;;
+  --he | --h)
+    # Conflict between --help and --header
+    { echo "$as_me: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&2
+   { (exit 1); exit 1; }; };;
+  --help | --hel | -h )
+    echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) { echo "$as_me: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&2
+   { (exit 1); exit 1; }; } ;;
+
+  *) ac_config_targets="$ac_config_targets $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+if \$ac_cs_recheck; then
+  echo "running CONFIG_SHELL=$SHELL $SHELL $0 "$ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
+  CONFIG_SHELL=$SHELL
+  export CONFIG_SHELL
+  exec $SHELL "$0"$ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "src/stressapptest_config.h") CONFIG_HEADERS="$CONFIG_HEADERS src/stressapptest_config.h" ;;
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+
+  *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
+echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
+   { (exit 1); exit 1; }; };;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp=
+  trap 'exit_status=$?
+  { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
+' 0
+  trap '{ (exit 1); exit 1; }' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -n "$tmp" && test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} ||
+{
+   echo "$me: cannot create a temporary directory in ." >&2
+   { (exit 1); exit 1; }
+}
+
+#
+# Set up the sed scripts for CONFIG_FILES section.
+#
+
+# No need to generate the scripts if there are no CONFIG_FILES.
+# This happens for instance when ./config.status config.h
+if test -n "$CONFIG_FILES"; then
+
+_ACEOF
+
+
+
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  cat >conf$$subs.sed <<_ACEOF
+SHELL!$SHELL$ac_delim
+PATH_SEPARATOR!$PATH_SEPARATOR$ac_delim
+PACKAGE_NAME!$PACKAGE_NAME$ac_delim
+PACKAGE_TARNAME!$PACKAGE_TARNAME$ac_delim
+PACKAGE_VERSION!$PACKAGE_VERSION$ac_delim
+PACKAGE_STRING!$PACKAGE_STRING$ac_delim
+PACKAGE_BUGREPORT!$PACKAGE_BUGREPORT$ac_delim
+exec_prefix!$exec_prefix$ac_delim
+prefix!$prefix$ac_delim
+program_transform_name!$program_transform_name$ac_delim
+bindir!$bindir$ac_delim
+sbindir!$sbindir$ac_delim
+libexecdir!$libexecdir$ac_delim
+datarootdir!$datarootdir$ac_delim
+datadir!$datadir$ac_delim
+sysconfdir!$sysconfdir$ac_delim
+sharedstatedir!$sharedstatedir$ac_delim
+localstatedir!$localstatedir$ac_delim
+includedir!$includedir$ac_delim
+oldincludedir!$oldincludedir$ac_delim
+docdir!$docdir$ac_delim
+infodir!$infodir$ac_delim
+htmldir!$htmldir$ac_delim
+dvidir!$dvidir$ac_delim
+pdfdir!$pdfdir$ac_delim
+psdir!$psdir$ac_delim
+libdir!$libdir$ac_delim
+localedir!$localedir$ac_delim
+mandir!$mandir$ac_delim
+DEFS!$DEFS$ac_delim
+ECHO_C!$ECHO_C$ac_delim
+ECHO_N!$ECHO_N$ac_delim
+ECHO_T!$ECHO_T$ac_delim
+LIBS!$LIBS$ac_delim
+build_alias!$build_alias$ac_delim
+host_alias!$host_alias$ac_delim
+target_alias!$target_alias$ac_delim
+build!$build$ac_delim
+build_cpu!$build_cpu$ac_delim
+build_vendor!$build_vendor$ac_delim
+build_os!$build_os$ac_delim
+host!$host$ac_delim
+host_cpu!$host_cpu$ac_delim
+host_vendor!$host_vendor$ac_delim
+host_os!$host_os$ac_delim
+target!$target$ac_delim
+target_cpu!$target_cpu$ac_delim
+target_vendor!$target_vendor$ac_delim
+target_os!$target_os$ac_delim
+INSTALL_PROGRAM!$INSTALL_PROGRAM$ac_delim
+INSTALL_SCRIPT!$INSTALL_SCRIPT$ac_delim
+INSTALL_DATA!$INSTALL_DATA$ac_delim
+am__isrc!$am__isrc$ac_delim
+CYGPATH_W!$CYGPATH_W$ac_delim
+PACKAGE!$PACKAGE$ac_delim
+VERSION!$VERSION$ac_delim
+ACLOCAL!$ACLOCAL$ac_delim
+AUTOCONF!$AUTOCONF$ac_delim
+AUTOMAKE!$AUTOMAKE$ac_delim
+AUTOHEADER!$AUTOHEADER$ac_delim
+MAKEINFO!$MAKEINFO$ac_delim
+install_sh!$install_sh$ac_delim
+STRIP!$STRIP$ac_delim
+INSTALL_STRIP_PROGRAM!$INSTALL_STRIP_PROGRAM$ac_delim
+mkdir_p!$mkdir_p$ac_delim
+AWK!$AWK$ac_delim
+SET_MAKE!$SET_MAKE$ac_delim
+am__leading_dot!$am__leading_dot$ac_delim
+AMTAR!$AMTAR$ac_delim
+am__tar!$am__tar$ac_delim
+am__untar!$am__untar$ac_delim
+CXX!$CXX$ac_delim
+CXXFLAGS!$CXXFLAGS$ac_delim
+LDFLAGS!$LDFLAGS$ac_delim
+CPPFLAGS!$CPPFLAGS$ac_delim
+ac_ct_CXX!$ac_ct_CXX$ac_delim
+EXEEXT!$EXEEXT$ac_delim
+OBJEXT!$OBJEXT$ac_delim
+DEPDIR!$DEPDIR$ac_delim
+am__include!$am__include$ac_delim
+am__quote!$am__quote$ac_delim
+AMDEP_TRUE!$AMDEP_TRUE$ac_delim
+AMDEP_FALSE!$AMDEP_FALSE$ac_delim
+AMDEPBACKSLASH!$AMDEPBACKSLASH$ac_delim
+CXXDEPMODE!$CXXDEPMODE$ac_delim
+am__fastdepCXX_TRUE!$am__fastdepCXX_TRUE$ac_delim
+am__fastdepCXX_FALSE!$am__fastdepCXX_FALSE$ac_delim
+CC!$CC$ac_delim
+CFLAGS!$CFLAGS$ac_delim
+ac_ct_CC!$ac_ct_CC$ac_delim
+CCDEPMODE!$CCDEPMODE$ac_delim
+am__fastdepCC_TRUE!$am__fastdepCC_TRUE$ac_delim
+am__fastdepCC_FALSE!$am__fastdepCC_FALSE$ac_delim
+CPP!$CPP$ac_delim
+GREP!$GREP$ac_delim
+EGREP!$EGREP$ac_delim
+LIBOBJS!$LIBOBJS$ac_delim
+_ACEOF
+
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
+    break
+  elif $ac_last_try; then
+    { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
+echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
+   { (exit 1); exit 1; }; }
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+ac_eof=`sed -n '/^CEOF[0-9]*$/s/CEOF/0/p' conf$$subs.sed`
+if test -n "$ac_eof"; then
+  ac_eof=`echo "$ac_eof" | sort -nru | sed 1q`
+  ac_eof=`expr $ac_eof + 1`
+fi
+
+cat >>$CONFIG_STATUS <<_ACEOF
+cat >"\$tmp/subs-1.sed" <<\CEOF$ac_eof
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+_ACEOF
+sed '
+s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g
+s/^/s,@/; s/!/@,|#_!!_#|/
+:n
+t n
+s/'"$ac_delim"'$/,g/; t
+s/$/\\/; p
+N; s/^.*\n//; s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g; b n
+' >>$CONFIG_STATUS <conf$$subs.sed
+rm -f conf$$subs.sed
+cat >>$CONFIG_STATUS <<_ACEOF
+CEOF$ac_eof
+_ACEOF
+
+
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  cat >conf$$subs.sed <<_ACEOF
+LTLIBOBJS!$LTLIBOBJS$ac_delim
+_ACEOF
+
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 1; then
+    break
+  elif $ac_last_try; then
+    { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
+echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
+   { (exit 1); exit 1; }; }
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+ac_eof=`sed -n '/^CEOF[0-9]*$/s/CEOF/0/p' conf$$subs.sed`
+if test -n "$ac_eof"; then
+  ac_eof=`echo "$ac_eof" | sort -nru | sed 1q`
+  ac_eof=`expr $ac_eof + 1`
+fi
+
+cat >>$CONFIG_STATUS <<_ACEOF
+cat >"\$tmp/subs-2.sed" <<\CEOF$ac_eof
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b end
+_ACEOF
+sed '
+s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g
+s/^/s,@/; s/!/@,|#_!!_#|/
+:n
+t n
+s/'"$ac_delim"'$/,g/; t
+s/$/\\/; p
+N; s/^.*\n//; s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g; b n
+' >>$CONFIG_STATUS <conf$$subs.sed
+rm -f conf$$subs.sed
+cat >>$CONFIG_STATUS <<_ACEOF
+:end
+s/|#_!!_#|//g
+CEOF$ac_eof
+_ACEOF
+
+
+# VPATH may cause trouble with some makes, so we remove $(srcdir),
+# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=/{
+s/:*\$(srcdir):*/:/
+s/:*\${srcdir}:*/:/
+s/:*@srcdir@:*/:/
+s/^\([^=]*=[	 ]*\):*/\1/
+s/:*$//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+fi # test -n "$CONFIG_FILES"
+
+
+for ac_tag in  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) { { echo "$as_me:$LINENO: error: Invalid tag $ac_tag." >&5
+echo "$as_me: error: Invalid tag $ac_tag." >&2;}
+   { (exit 1); exit 1; }; };;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   { { echo "$as_me:$LINENO: error: cannot find input file: $ac_f" >&5
+echo "$as_me: error: cannot find input file: $ac_f" >&2;}
+   { (exit 1); exit 1; }; };;
+      esac
+      ac_file_inputs="$ac_file_inputs $ac_f"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input="Generated from "`IFS=:
+	  echo $* | sed 's|^[^:]*/||;s|:[^:]*/|, |g'`" by configure."
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+    fi
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$tmp/stdin";;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  { as_dir="$ac_dir"
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || { { echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
+echo "$as_me: error: cannot create directory $as_dir" >&2;}
+   { (exit 1); exit 1; }; }; }
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,/..,g;s,/,,'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+
+case `sed -n '/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p
+' $ac_file_inputs` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { echo "$as_me:$LINENO: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+    s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF
+  sed "$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s&@configure_input@&$configure_input&;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+" $ac_file_inputs | sed -f "$tmp/subs-1.sed" | sed -f "$tmp/subs-2.sed" >$tmp/out
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
+  { echo "$as_me:$LINENO: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined." >&5
+echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined." >&2;}
+
+  rm -f "$tmp/stdin"
+  case $ac_file in
+  -) cat "$tmp/out"; rm -f "$tmp/out";;
+  *) rm -f "$ac_file"; mv "$tmp/out" $ac_file;;
+  esac
+ ;;
+  :H)
+  #
+  # CONFIG_HEADER
+  #
+_ACEOF
+
+# Transform confdefs.h into a sed script `conftest.defines', that
+# substitutes the proper values into config.h.in to produce config.h.
+rm -f conftest.defines conftest.tail
+# First, append a space to every undef/define line, to ease matching.
+echo 's/$/ /' >conftest.defines
+# Then, protect against being on the right side of a sed subst, or in
+# an unquoted here document, in config.status.  If some macros were
+# called several times there might be several #defines for the same
+# symbol, which is useless.  But do not sort them, since the last
+# AC_DEFINE must be honored.
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+# These sed commands are passed to sed as "A NAME B PARAMS C VALUE D", where
+# NAME is the cpp macro being defined, VALUE is the value it is being given.
+# PARAMS is the parameter list in the macro definition--in most cases, it's
+# just an empty string.
+ac_dA='s,^\\([	 #]*\\)[^	 ]*\\([	 ]*'
+ac_dB='\\)[	 (].*,\\1define\\2'
+ac_dC=' '
+ac_dD=' ,'
+
+uniq confdefs.h |
+  sed -n '
+	t rset
+	:rset
+	s/^[	 ]*#[	 ]*define[	 ][	 ]*//
+	t ok
+	d
+	:ok
+	s/[\\&,]/\\&/g
+	s/^\('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/ '"$ac_dA"'\1'"$ac_dB"'\2'"${ac_dC}"'\3'"$ac_dD"'/p
+	s/^\('"$ac_word_re"'\)[	 ]*\(.*\)/'"$ac_dA"'\1'"$ac_dB$ac_dC"'\2'"$ac_dD"'/p
+  ' >>conftest.defines
+
+# Remove the space that was appended to ease matching.
+# Then replace #undef with comments.  This is necessary, for
+# example, in the case of _POSIX_SOURCE, which is predefined and required
+# on some systems where configure will not decide to define it.
+# (The regexp can be short, since the line contains either #define or #undef.)
+echo 's/ $//
+s,^[	 #]*u.*,/* & */,' >>conftest.defines
+
+# Break up conftest.defines:
+ac_max_sed_lines=50
+
+# First sed command is:	 sed -f defines.sed $ac_file_inputs >"$tmp/out1"
+# Second one is:	 sed -f defines.sed "$tmp/out1" >"$tmp/out2"
+# Third one will be:	 sed -f defines.sed "$tmp/out2" >"$tmp/out1"
+# et cetera.
+ac_in='$ac_file_inputs'
+ac_out='"$tmp/out1"'
+ac_nxt='"$tmp/out2"'
+
+while :
+do
+  # Write a here document:
+    cat >>$CONFIG_STATUS <<_ACEOF
+    # First, check the format of the line:
+    cat >"\$tmp/defines.sed" <<\\CEOF
+/^[	 ]*#[	 ]*undef[	 ][	 ]*$ac_word_re[	 ]*\$/b def
+/^[	 ]*#[	 ]*define[	 ][	 ]*$ac_word_re[(	 ]/b def
+b
+:def
+_ACEOF
+  sed ${ac_max_sed_lines}q conftest.defines >>$CONFIG_STATUS
+  echo 'CEOF
+    sed -f "$tmp/defines.sed"' "$ac_in >$ac_out" >>$CONFIG_STATUS
+  ac_in=$ac_out; ac_out=$ac_nxt; ac_nxt=$ac_in
+  sed 1,${ac_max_sed_lines}d conftest.defines >conftest.tail
+  grep . conftest.tail >/dev/null || break
+  rm -f conftest.defines
+  mv conftest.tail conftest.defines
+done
+rm -f conftest.defines conftest.tail
+
+echo "ac_result=$ac_in" >>$CONFIG_STATUS
+cat >>$CONFIG_STATUS <<\_ACEOF
+  if test x"$ac_file" != x-; then
+    echo "/* $configure_input  */" >"$tmp/config.h"
+    cat "$ac_result" >>"$tmp/config.h"
+    if diff $ac_file "$tmp/config.h" >/dev/null 2>&1; then
+      { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
+echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      rm -f $ac_file
+      mv "$tmp/config.h" $ac_file
+    fi
+  else
+    echo "/* $configure_input  */"
+    cat "$ac_result"
+  fi
+  rm -f "$tmp/out12"
+# Compute $ac_file's index in $config_headers.
+_am_arg=$ac_file
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+echo X"$_am_arg" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+
+  :C)  { echo "$as_me:$LINENO: executing $ac_file commands" >&5
+echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || for mf in $CONFIG_FILES; do
+  # Strip MF so we end up with the name of the file.
+  mf=`echo "$mf" | sed -e 's/:.*$//'`
+  # Check whether this is an Automake generated Makefile or not.
+  # We used to match only the files named `Makefile.in', but
+  # some people rename them; so instead we look at the file content.
+  # Grep'ing the first line is not enough: some people post-process
+  # each Makefile.in and add a new line on top of each file to say so.
+  # Grep'ing the whole file is not good either: AIX grep has a line
+  # limit of 2048, but all sed's we know have understand at least 4000.
+  if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+    dirpart=`$as_dirname -- "$mf" ||
+$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$mf" : 'X\(//\)[^/]' \| \
+	 X"$mf" : 'X\(//\)$' \| \
+	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
+echo X"$mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  else
+    continue
+  fi
+  # Extract the definition of DEPDIR, am__include, and am__quote
+  # from the Makefile without running `make'.
+  DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+  test -z "$DEPDIR" && continue
+  am__include=`sed -n 's/^am__include = //p' < "$mf"`
+  test -z "am__include" && continue
+  am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+  # When using ansi2knr, U may be empty or an underscore; expand it
+  U=`sed -n 's/^U = //p' < "$mf"`
+  # Find all dependency output files, they are included files with
+  # $(DEPDIR) in their names.  We invoke sed twice because it is the
+  # simplest approach to changing $(DEPDIR) to its actual value in the
+  # expansion.
+  for file in `sed -n "
+    s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+    # Make sure the directory exists.
+    test -f "$dirpart/$file" && continue
+    fdir=`$as_dirname -- "$file" ||
+$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$file" : 'X\(//\)[^/]' \| \
+	 X"$file" : 'X\(//\)$' \| \
+	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
+echo X"$file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    { as_dir=$dirpart/$fdir
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || { { echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
+echo "$as_me: error: cannot create directory $as_dir" >&2;}
+   { (exit 1); exit 1; }; }; }
+    # echo "creating $dirpart/$file"
+    echo '# dummy' > "$dirpart/$file"
+  done
+done
+ ;;
+
+  esac
+done # for ac_tag
+
+
+{ (exit 0); exit 0; }
+_ACEOF
+chmod +x $CONFIG_STATUS
+ac_clean_files=$ac_clean_files_save
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || { (exit 1); exit 1; }
+fi
+
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..38dc59c
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,176 @@
+AC_PREREQ(2.61)
+AC_INIT(stressapptest, 1.0.3_autoconf, opensource@google.com)
+
+AC_CANONICAL_HOST
+AC_CANONICAL_BUILD
+# Checking for target cpu and setting custom configuration
+# for the different platforms
+AC_CANONICAL_TARGET
+case x"$target_cpu" in
+  "xx86_64")
+    AC_DEFINE([STRESSAPPTEST_CPU_X86_64],[],
+              [Defined if the target CPU is x86_64])
+    ;;
+  "xi686")
+    AC_DEFINE([STRESSAPPTEST_CPU_I686],[],
+              [Defined if the target CPU is i686])
+    ;;
+  "xpowerpc")
+    AC_DEFINE([STRESSAPPTEST_CPU_PPC],[],
+              [Defined if the target CPU is PowerPC])
+    ;;
+  "xarmv7a")
+    AC_DEFINE([STRESSAPPTEST_CPU_ARMV7A],[],
+              [Defined if the target CPU is armv7a])
+    ;;
+  *)
+    AC_MSG_ERROR([$target_cpu is not supported! Try x86_64, i686, powerpc, or armv7a])
+    ;;
+esac
+
+_os=`uname`
+## The following allows like systems to share settings. This is not meant to
+## imply that these OS are the same thing. From OpenOffice dmake configure.in
+case "$_os" in
+  "Linux")
+    OS_VERSION=linux
+    AC_DEFINE([STRESSAPPTEST_OS_LINUX],[],
+              [Defined if the target OS is Linux])
+    ;;
+  "Darwin")
+    OS_VERSION=macosx
+    AC_DEFINE([STRESSAPPTEST_OS_DARWIN],[],
+              [Defined if the target OS is OSX])
+    ;;
+  "FreeBSD")
+    OS_VERSION=bsd
+    AC_DEFINE([STRESSAPPTEST_OS_BSD],[],
+              [Defined if the target OS is BSD based])
+    ;;
+  "NetBSD")
+    OS_VERSION=bsd
+    AC_DEFINE([STRESSAPPTEST_OS_BSD],[],
+              [Defined if the target OS is BSD based])
+    ;;
+  *)
+    AC_MSG_ERROR([$_os operating system is not suitable to build dmake!])
+    ;;
+esac
+
+AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AC_CONFIG_SRCDIR([src/])
+AC_CONFIG_HEADER([src/stressapptest_config.h])
+
+# Checks for programs.
+#  Don't generate CXXFLAGS defaults: if CXXFLAGS are unset
+#  AC_PROG_CXX will override them with unwanted defaults.
+CXXFLAGS="$CXXFLAGS"
+AC_PROG_CXX
+AC_PROG_CC
+
+#Getting user and host info
+username=$(whoami)
+AC_MSG_CHECKING([user ID])
+AC_MSG_RESULT([$username])
+
+hostname=$(uname -n)
+AC_MSG_CHECKING([host name])
+AC_MSG_RESULT([$hostname])
+
+timestamp=$(date)
+AC_MSG_CHECKING([current timestamp])
+AC_MSG_RESULT([$timestamp])
+
+AC_DEFINE_UNQUOTED([STRESSAPPTEST_TIMESTAMP],
+                   "$username @ $hostname on $timestamp",
+                   [Timestamp when ./configure was executed])
+
+#Default cxxflags
+CXXFLAGS="$CXXFLAGS -DCHECKOPTS"
+CXXFLAGS="$CXXFLAGS -Wreturn-type -Wunused -Wuninitialized -Wall -Wno-psabi"
+CXXFLAGS="$CXXFLAGS -O3 -funroll-all-loops  -funroll-loops -DNDEBUG"
+
+# Checks for header files.
+AC_HEADER_DIRENT
+AC_HEADER_STDC
+AC_CHECK_HEADERS([arpa/inet.h fcntl.h malloc.h netdb.h stdint.h stdlib.h string.h sys/ioctl.h sys/socket.h sys/time.h unistd.h])
+AC_CHECK_HEADERS([pthread.h libaio.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_HEADER_STDBOOL
+AC_C_CONST
+AC_C_INLINE
+AC_TYPE_PID_T
+AC_C_RESTRICT
+AC_TYPE_SSIZE_T
+AC_HEADER_TIME
+AC_TYPE_UINT16_T
+AC_C_VOLATILE
+
+
+# These are the libraries stressapptest requires to build.
+# We'll check that they work, and fail otherwise.
+# In the future we may provide for testing alternate
+# arguments, but that's not necessary now.
+LIBS="$LIBS -static -lrt -pthread -laio"
+
+# Checking for pthreads
+pthread_arg="not_available"
+AC_MSG_CHECKING([if pthreads is supported])
+
+pthread_header="#include<pthread.h>"
+pthread_body="pthread_create(0,0,0,0)"
+# Check if compile with no extra argument
+AC_LINK_IFELSE([AC_LANG_PROGRAM($pthread_header, $pthread_body)],
+pthread_arg="")
+
+if test x"$pthread_arg" = x"not_available"; then
+  AC_MSG_FAILURE([Cannot find a proper pthread library])
+else
+  AC_MSG_RESULT([yes])
+fi
+
+# Checking for libaio
+libaio_arg="not_available"
+AC_MSG_CHECKING([if libaio is supported])
+
+libaio_header="#include<libaio.h>"
+libaio_body="io_submit(0,0,0)"
+# Check if compile with no extra argument
+AC_LINK_IFELSE([AC_LANG_PROGRAM($libaio_header, $libaio_body)],
+libaio_arg="")
+
+if test x"$libaio_arg" = x"not_available"; then
+  AC_MSG_FAILURE([Cannot find libaio library, please install libaio-dev])
+else
+  AC_MSG_RESULT([yes])
+fi
+
+# Checking for librt
+librt_arg="not_available"
+AC_MSG_CHECKING([if librt is supported])
+
+librt_header="#include<sys/shm.h>"
+librt_body="shm_open(0, 0, 0)"
+# Check if compile with no extra argument
+AC_LINK_IFELSE([AC_LANG_PROGRAM($librt_header, $librt_body)],
+librt_arg="")
+
+if test x"$librt_arg" = x"not_available"; then
+  AC_MSG_FAILURE([Cannot find librt library])
+else
+  AC_MSG_RESULT([yes])
+fi
+
+
+# Checks for library functions.
+AC_FUNC_CLOSEDIR_VOID
+AC_PROG_GCC_TRADITIONAL
+AC_FUNC_SELECT_ARGTYPES
+AC_TYPE_SIGNAL
+AC_FUNC_STRERROR_R
+AC_FUNC_VPRINTF
+AC_CHECK_FUNCS([gettimeofday memset select socket strtol strtoull])
+
+AC_CONFIG_FILES([Makefile src/Makefile])
+AC_OUTPUT
diff --git a/depcomp b/depcomp
new file mode 100755
index 0000000..e5f9736
--- /dev/null
+++ b/depcomp
@@ -0,0 +1,589 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2007-03-29.01
+
+# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software
+# Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+  '')
+     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by `PROGRAMS ARGS'.
+  object      Object file output by `PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputing dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+   # This is just like dashmstdout with a different argument.
+   dashmflag=-xM
+   depmode=dashmstdout
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+  tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'.  On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like `#:fec' to the end of the
+    # dependency line.
+    tr ' ' '
+' < "$tmpdepfile" \
+    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+    tr '
+' ' ' >> $depfile
+    echo >> $depfile
+
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' '
+' < "$tmpdepfile" \
+   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+   >> $depfile
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts `$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  test "x$dir" = "x$object" && dir=
+  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form `foo.o: dependent.h'.
+    # Do two passes, one to just change these to
+    # `$object: dependent.h' and one to simply `dependent.h:'.
+    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+    # That's a tab and a space in the [].
+    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+icc)
+  # Intel's C compiler understands `-MD -MF file'.  However on
+  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+  # ICC 7.0 will fill foo.d with something like
+  #    foo.o: sub/foo.c
+  #    foo.o: sub/foo.h
+  # which is wrong.  We want:
+  #    sub/foo.o: sub/foo.c
+  #    sub/foo.o: sub/foo.h
+  #    sub/foo.c:
+  #    sub/foo.h:
+  # ICC 7.1 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using \ :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
+    sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  test "x$dir" = "x$object" && dir=
+  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add `dependent.h:' lines.
+    sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
+  else
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+   # The Tru64 compiler uses -MD to generate dependencies as a side
+   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+   # dependencies in `foo.d' instead, so we check for that too.
+   # Subdirectories are respected.
+   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+   test "x$dir" = "x$object" && dir=
+   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+
+   if test "$libtool" = yes; then
+      # With Tru64 cc, shared objects can also be used to make a
+      # static library.  This mechanism is used in libtool 1.4 series to
+      # handle both shared and static libraries in a single compilation.
+      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
+      #
+      # With libtool 1.5 this exception was removed, and libtool now
+      # generates 2 separate objects for the 2 libraries.  These two
+      # compilations output dependencies in $dir.libs/$base.o.d and
+      # in $dir$base.o.d.  We have to check for both files, because
+      # one of the two compilations can be disabled.  We should prefer
+      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+      # automatically cleaned when .libs/ is deleted, while ignoring
+      # the former would cause a distcleancheck panic.
+      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
+      tmpdepfile2=$dir$base.o.d          # libtool 1.5
+      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
+      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
+      "$@" -Wc,-MD
+   else
+      tmpdepfile1=$dir$base.o.d
+      tmpdepfile2=$dir$base.d
+      tmpdepfile3=$dir$base.d
+      tmpdepfile4=$dir$base.d
+      "$@" -MD
+   fi
+
+   stat=$?
+   if test $stat -eq 0; then :
+   else
+      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+      exit $stat
+   fi
+
+   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+   do
+     test -f "$tmpdepfile" && break
+   done
+   if test -f "$tmpdepfile"; then
+      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+      # That's a tab and a space in the [].
+      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+   else
+      echo "#dummy" > "$depfile"
+   fi
+   rm -f "$tmpdepfile"
+   ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test $1 != '--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for `:'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+  "$@" $dashmflag |
+    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test $1 != '--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no
+  for arg in "$@"; do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix="`echo $object | sed 's/^.*\././'`"
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  sed '1,2d' "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test $1 != '--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E |
+    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+    sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  "$@" || exit $?
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+	set fnord "$@"
+	shift
+	shift
+	;;
+    *)
+	set fnord "$@" "$arg"
+	shift
+	shift
+	;;
+    esac
+  done
+  "$@" -E |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
+  echo "	" >> "$depfile"
+  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/install-sh b/install-sh
new file mode 100755
index 0000000..a5897de
--- /dev/null
+++ b/install-sh
@@ -0,0 +1,519 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2006-12-25.00
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+nl='
+'
+IFS=" ""	$nl"
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit=${DOITPROG-}
+if test -z "$doit"; then
+  doit_exec=exec
+else
+  doit_exec=$doit
+fi
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_glob='?'
+initialize_posix_glob='
+  test "$posix_glob" != "?" || {
+    if (set -f) 2>/dev/null; then
+      posix_glob=
+    else
+      posix_glob=:
+    fi
+  }
+'
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+no_target_directory=
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve the last data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -s            $stripprog installed files.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+	shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+	case $mode in
+	  *' '* | *'	'* | *'
+'*	  | *'*'* | *'?'* | *'['*)
+	    echo "$0: invalid mode: $mode" >&2
+	    exit 1;;
+	esac
+	shift;;
+
+    -o) chowncmd="$chownprog $2"
+	shift;;
+
+    -s) stripcmd=$stripprog;;
+
+    -t) dst_arg=$2
+	shift;;
+
+    -T) no_target_directory=true;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --)	shift
+	break;;
+
+    -*)	echo "$0: invalid option: $1" >&2
+	exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call `install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  trap '(exit $?); exit' 1 2 13 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names starting with `-'.
+  case $src in
+    -*) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+
+    dst=$dst_arg
+    # Protect names starting with `-'.
+    case $dst in
+      -*) dst=./$dst;;
+    esac
+
+    # If destination is a directory, append the input filename; won't work
+    # if double slashes aren't ignored.
+    if test -d "$dst"; then
+      if test -n "$no_target_directory"; then
+	echo "$0: $dst_arg: Is a directory" >&2
+	exit 1
+      fi
+      dstdir=$dst
+      dst=$dstdir/`basename "$src"`
+      dstdir_status=0
+    else
+      # Prefer dirname, but fall back on a substitute if dirname fails.
+      dstdir=`
+	(dirname "$dst") 2>/dev/null ||
+	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	     X"$dst" : 'X\(//\)[^/]' \| \
+	     X"$dst" : 'X\(//\)$' \| \
+	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
+	echo X"$dst" |
+	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)[^/].*/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\).*/{
+		   s//\1/
+		   q
+		 }
+		 s/.*/./; q'
+      `
+
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+	# Create intermediate dirs using mode 755 as modified by the umask.
+	# This is like FreeBSD 'install' as of 1997-10-28.
+	umask=`umask`
+	case $stripcmd.$umask in
+	  # Optimize common cases.
+	  *[2367][2367]) mkdir_umask=$umask;;
+	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+	  *[0-7])
+	    mkdir_umask=`expr $umask + 22 \
+	      - $umask % 100 % 40 + $umask % 20 \
+	      - $umask % 10 % 4 + $umask % 2
+	    `;;
+	  *) mkdir_umask=$umask,go-w;;
+	esac
+
+	# With -d, create the new directory with the user-specified mode.
+	# Otherwise, rely on $mkdir_umask.
+	if test -n "$dir_arg"; then
+	  mkdir_mode=-m$mode
+	else
+	  mkdir_mode=
+	fi
+
+	posix_mkdir=false
+	case $umask in
+	  *[123567][0-7][0-7])
+	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
+	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+	    ;;
+	  *)
+	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+	    if (umask $mkdir_umask &&
+		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+	    then
+	      if test -z "$dir_arg" || {
+		   # Check for POSIX incompatibilities with -m.
+		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+		   # other-writeable bit of parent directory when it shouldn't.
+		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+		   case $ls_ld_tmpdir in
+		     d????-?r-*) different_mode=700;;
+		     d????-?--*) different_mode=755;;
+		     *) false;;
+		   esac &&
+		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+		   }
+		 }
+	      then posix_mkdir=:
+	      fi
+	      rmdir "$tmpdir/d" "$tmpdir"
+	    else
+	      # Remove any dirs left behind by ancient mkdir implementations.
+	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+	    fi
+	    trap '' 0;;
+	esac;;
+    esac
+
+    if
+      $posix_mkdir && (
+	umask $mkdir_umask &&
+	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+	/*) prefix='/';;
+	-*) prefix='./';;
+	*)  prefix='';;
+      esac
+
+      eval "$initialize_posix_glob"
+
+      oIFS=$IFS
+      IFS=/
+      $posix_glob set -f
+      set fnord $dstdir
+      shift
+      $posix_glob set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+	test -z "$d" && continue
+
+	prefix=$prefix$d
+	if test -d "$prefix"; then
+	  prefixes=
+	else
+	  if $posix_mkdir; then
+	    (umask=$mkdir_umask &&
+	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+	    # Don't fail if two instances are running concurrently.
+	    test -d "$prefix" || exit 1
+	  else
+	    case $prefix in
+	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+	      *) qprefix=$prefix;;
+	    esac
+	    prefixes="$prefixes '$qprefix'"
+	  fi
+	fi
+	prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+	# Don't fail if two instances are running concurrently.
+	(umask $mkdir_umask &&
+	 eval "\$doit_exec \$mkdirprog $prefixes") ||
+	  test -d "$dstdir" || exit 1
+	obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=$dstdir/_inst.$$_
+    rmtmp=$dstdir/_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
+
+       eval "$initialize_posix_glob" &&
+       $posix_glob set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       $posix_glob set +f &&
+
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+	# Now remove or move aside any old file at destination location.
+	# We try this two ways since rm can't unlink itself on some
+	# systems and the destination file might be busy for other
+	# reasons.  In this case, the final cleanup might fail but the new
+	# file should still install successfully.
+	{
+	  test ! -f "$dst" ||
+	  $doit $rmcmd -f "$dst" 2>/dev/null ||
+	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+	  } ||
+	  { echo "$0: cannot unlink or rename $dst" >&2
+	    (exit 1); exit 1
+	  }
+	} &&
+
+	# Now rename the file to the real destination.
+	$doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/missing b/missing
new file mode 100755
index 0000000..1c8ff70
--- /dev/null
+++ b/missing
@@ -0,0 +1,367 @@
+#! /bin/sh
+# Common stub for a few missing GNU programs while installing.
+
+scriptversion=2006-05-10.23
+
+# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006
+#   Free Software Foundation, Inc.
+# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try \`$0 --help' for more information"
+  exit 1
+fi
+
+run=:
+sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
+sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
+
+# In the cases where this matters, `missing' is being run in the
+# srcdir already.
+if test -f configure.ac; then
+  configure_ac=configure.ac
+else
+  configure_ac=configure.in
+fi
+
+msg="missing on your system"
+
+case $1 in
+--run)
+  # Try to run requested program, and just exit if it succeeds.
+  run=
+  shift
+  "$@" && exit 0
+  # Exit code 63 means version mismatch.  This often happens
+  # when the user try to use an ancient version of a tool on
+  # a file that requires a minimum version.  In this case we
+  # we should proceed has if the program had been absent, or
+  # if --run hadn't been passed.
+  if test $? = 63; then
+    run=:
+    msg="probably too old"
+  fi
+  ;;
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+error status if there is no known handling for PROGRAM.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+  --run           try to run the given command, and emulate it if it fails
+
+Supported PROGRAM values:
+  aclocal      touch file \`aclocal.m4'
+  autoconf     touch file \`configure'
+  autoheader   touch file \`config.h.in'
+  autom4te     touch the output file, or create a stub one
+  automake     touch all \`Makefile.in' files
+  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
+  flex         create \`lex.yy.c', if possible, from existing .c
+  help2man     touch the output file
+  lex          create \`lex.yy.c', if possible, from existing .c
+  makeinfo     touch the output file
+  tar          try tar, gnutar, gtar, then tar without non-portable flags
+  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
+
+Send bug reports to <bug-automake@gnu.org>."
+    exit $?
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing $scriptversion (GNU Automake)"
+    exit $?
+    ;;
+
+  -*)
+    echo 1>&2 "$0: Unknown \`$1' option"
+    echo 1>&2 "Try \`$0 --help' for more information"
+    exit 1
+    ;;
+
+esac
+
+# Now exit if we have it, but it failed.  Also exit now if we
+# don't have it and --version was passed (most likely to detect
+# the program).
+case $1 in
+  lex|yacc)
+    # Not GNU programs, they don't have --version.
+    ;;
+
+  tar)
+    if test -n "$run"; then
+       echo 1>&2 "ERROR: \`tar' requires --run"
+       exit 1
+    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+       exit 1
+    fi
+    ;;
+
+  *)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+       # Could not run --version or --help.  This is probably someone
+       # running `$TOOL --version' or `$TOOL --help' to check whether
+       # $TOOL exists and not knowing $TOOL uses missing.
+       exit 1
+    fi
+    ;;
+esac
+
+# If it does not exist, or fails to run (possibly an outdated version),
+# try to emulate it.
+case $1 in
+  aclocal*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
+         to install the \`Automake' and \`Perl' packages.  Grab them from
+         any GNU archive site."
+    touch aclocal.m4
+    ;;
+
+  autoconf)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`${configure_ac}'.  You might want to install the
+         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
+         archive site."
+    touch configure
+    ;;
+
+  autoheader)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
+         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
+         from any GNU archive site."
+    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
+    test -z "$files" && files="config.h"
+    touch_files=
+    for f in $files; do
+      case $f in
+      *:*) touch_files="$touch_files "`echo "$f" |
+				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+      *) touch_files="$touch_files $f.in";;
+      esac
+    done
+    touch $touch_files
+    ;;
+
+  automake*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
+         You might want to install the \`Automake' and \`Perl' packages.
+         Grab them from any GNU archive site."
+    find . -type f -name Makefile.am -print |
+	   sed 's/\.am$/.in/' |
+	   while read f; do touch "$f"; done
+    ;;
+
+  autom4te)
+    echo 1>&2 "\
+WARNING: \`$1' is needed, but is $msg.
+         You might have modified some files without having the
+         proper tools for further handling them.
+         You can get \`$1' as part of \`Autoconf' from any GNU
+         archive site."
+
+    file=`echo "$*" | sed -n "$sed_output"`
+    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+    if test -f "$file"; then
+	touch $file
+    else
+	test -z "$file" || exec >$file
+	echo "#! /bin/sh"
+	echo "# Created by GNU Automake missing as a replacement of"
+	echo "#  $ $@"
+	echo "exit 0"
+	chmod +x $file
+	exit 1
+    fi
+    ;;
+
+  bison|yacc)
+    echo 1>&2 "\
+WARNING: \`$1' $msg.  You should only need it if
+         you modified a \`.y' file.  You may need the \`Bison' package
+         in order for those modifications to take effect.  You can get
+         \`Bison' from any GNU archive site."
+    rm -f y.tab.c y.tab.h
+    if test $# -ne 1; then
+        eval LASTARG="\${$#}"
+	case $LASTARG in
+	*.y)
+	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+	    if test -f "$SRCFILE"; then
+	         cp "$SRCFILE" y.tab.c
+	    fi
+	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+	    if test -f "$SRCFILE"; then
+	         cp "$SRCFILE" y.tab.h
+	    fi
+	  ;;
+	esac
+    fi
+    if test ! -f y.tab.h; then
+	echo >y.tab.h
+    fi
+    if test ! -f y.tab.c; then
+	echo 'main() { return 0; }' >y.tab.c
+    fi
+    ;;
+
+  lex|flex)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified a \`.l' file.  You may need the \`Flex' package
+         in order for those modifications to take effect.  You can get
+         \`Flex' from any GNU archive site."
+    rm -f lex.yy.c
+    if test $# -ne 1; then
+        eval LASTARG="\${$#}"
+	case $LASTARG in
+	*.l)
+	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+	    if test -f "$SRCFILE"; then
+	         cp "$SRCFILE" lex.yy.c
+	    fi
+	  ;;
+	esac
+    fi
+    if test ! -f lex.yy.c; then
+	echo 'main() { return 0; }' >lex.yy.c
+    fi
+    ;;
+
+  help2man)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+	 you modified a dependency of a manual page.  You may need the
+	 \`Help2man' package in order for those modifications to take
+	 effect.  You can get \`Help2man' from any GNU archive site."
+
+    file=`echo "$*" | sed -n "$sed_output"`
+    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+    if test -f "$file"; then
+	touch $file
+    else
+	test -z "$file" || exec >$file
+	echo ".ab help2man is required to generate this page"
+	exit 1
+    fi
+    ;;
+
+  makeinfo)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified a \`.texi' or \`.texinfo' file, or any other file
+         indirectly affecting the aspect of the manual.  The spurious
+         call might also be the consequence of using a buggy \`make' (AIX,
+         DU, IRIX).  You might want to install the \`Texinfo' package or
+         the \`GNU make' package.  Grab either from any GNU archive site."
+    # The file to touch is that specified with -o ...
+    file=`echo "$*" | sed -n "$sed_output"`
+    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+    if test -z "$file"; then
+      # ... or it is the one specified with @setfilename ...
+      infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
+      file=`sed -n '
+	/^@setfilename/{
+	  s/.* \([^ ]*\) *$/\1/
+	  p
+	  q
+	}' $infile`
+      # ... or it is derived from the source name (dir/f.texi becomes f.info)
+      test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
+    fi
+    # If the file does not exist, the user really needs makeinfo;
+    # let's fail without touching anything.
+    test -f $file || exit 1
+    touch $file
+    ;;
+
+  tar)
+    shift
+
+    # We have already tried tar in the generic part.
+    # Look for gnutar/gtar before invocation to avoid ugly error
+    # messages.
+    if (gnutar --version > /dev/null 2>&1); then
+       gnutar "$@" && exit 0
+    fi
+    if (gtar --version > /dev/null 2>&1); then
+       gtar "$@" && exit 0
+    fi
+    firstarg="$1"
+    if shift; then
+	case $firstarg in
+	*o*)
+	    firstarg=`echo "$firstarg" | sed s/o//`
+	    tar "$firstarg" "$@" && exit 0
+	    ;;
+	esac
+	case $firstarg in
+	*h*)
+	    firstarg=`echo "$firstarg" | sed s/h//`
+	    tar "$firstarg" "$@" && exit 0
+	    ;;
+	esac
+    fi
+
+    echo 1>&2 "\
+WARNING: I can't seem to be able to run \`tar' with the given arguments.
+         You may want to install GNU tar or Free paxutils, or check the
+         command line arguments."
+    exit 1
+    ;;
+
+  *)
+    echo 1>&2 "\
+WARNING: \`$1' is needed, and is $msg.
+         You might have modified some files without having the
+         proper tools for further handling them.  Check the \`README' file,
+         it often tells you about the needed prerequisites for installing
+         this package.  You may also peek at any GNU archive site, in case
+         some other package would contain this missing \`$1' program."
+    exit 1
+    ;;
+esac
+
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..e044974
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,31 @@
+bin_PROGRAMS = stressapptest
+
+AM_DEFAULT_SOURCE_EXT=.cc
+
+MAINFILES = main.cc
+CFILES = os.cc
+CFILES += os_factory.cc
+CFILES += pattern.cc
+CFILES += queue.cc
+CFILES += sat.cc
+CFILES += sat_factory.cc
+CFILES += worker.cc
+CFILES += finelock_queue.cc
+CFILES += error_diag.cc
+CFILES += disk_blocks.cc
+CFILES += adler32memcpy.cc
+CFILES += logger.cc
+
+HFILES = os.h
+HFILES += pattern.h
+HFILES += queue.h
+HFILES += sat.h
+HFILES += worker.h
+HFILES += sattypes.h
+HFILES += finelock_queue.h
+HFILES += error_diag.h
+HFILES += disk_blocks.h
+HFILES += adler32memcpy.h
+HFILES += logger.h
+
+stressapptest_SOURCES = $(MAINFILES) $(CFILES) $(HFILES)
diff --git a/src/Makefile.in b/src/Makefile.in
new file mode 100644
index 0000000..7cd6f2a
--- /dev/null
+++ b/src/Makefile.in
@@ -0,0 +1,476 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+target_triplet = @target@
+bin_PROGRAMS = stressapptest$(EXEEXT)
+subdir = src
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+	$(srcdir)/stressapptest_config.h.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = stressapptest_config.h
+CONFIG_CLEAN_FILES =
+am__installdirs = "$(DESTDIR)$(bindir)"
+binPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
+PROGRAMS = $(bin_PROGRAMS)
+am__objects_1 = main.$(OBJEXT)
+am__objects_2 = os.$(OBJEXT) os_factory.$(OBJEXT) pattern.$(OBJEXT) \
+	queue.$(OBJEXT) sat.$(OBJEXT) sat_factory.$(OBJEXT) \
+	worker.$(OBJEXT) finelock_queue.$(OBJEXT) error_diag.$(OBJEXT) \
+	disk_blocks.$(OBJEXT) adler32memcpy.$(OBJEXT) logger.$(OBJEXT)
+am__objects_3 =
+am_stressapptest_OBJECTS = $(am__objects_1) $(am__objects_2) \
+	$(am__objects_3)
+stressapptest_OBJECTS = $(am_stressapptest_OBJECTS)
+stressapptest_LDADD = $(LDADD)
+DEFAULT_INCLUDES = -I.@am__isrc@
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+CXXLD = $(CXX)
+CXXLINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) \
+	-o $@
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+SOURCES = $(stressapptest_SOURCES)
+DIST_SOURCES = $(stressapptest_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CXX = @CXX@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LDFLAGS = @LDFLAGS@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LTLIBOBJS = @LTLIBOBJS@
+MAKEINFO = @MAKEINFO@
+MKDIR_P = @MKDIR_P@
+OBJEXT = @OBJEXT@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target = @target@
+target_alias = @target_alias@
+target_cpu = @target_cpu@
+target_os = @target_os@
+target_vendor = @target_vendor@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+AM_DEFAULT_SOURCE_EXT = .cc
+MAINFILES = main.cc
+CFILES = os.cc os_factory.cc pattern.cc queue.cc sat.cc sat_factory.cc \
+	worker.cc finelock_queue.cc error_diag.cc disk_blocks.cc \
+	adler32memcpy.cc logger.cc
+HFILES = os.h pattern.h queue.h sat.h worker.h sattypes.h \
+	finelock_queue.h error_diag.h disk_blocks.h adler32memcpy.h \
+	logger.h
+stressapptest_SOURCES = $(MAINFILES) $(CFILES) $(HFILES)
+all: stressapptest_config.h
+	$(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign  src/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign  src/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+stressapptest_config.h: stamp-h1
+	@if test ! -f $@; then \
+	  rm -f stamp-h1; \
+	  $(MAKE) $(AM_MAKEFLAGS) stamp-h1; \
+	else :; fi
+
+stamp-h1: $(srcdir)/stressapptest_config.h.in $(top_builddir)/config.status
+	@rm -f stamp-h1
+	cd $(top_builddir) && $(SHELL) ./config.status src/stressapptest_config.h
+$(srcdir)/stressapptest_config.h.in:  $(am__configure_deps) 
+	cd $(top_srcdir) && $(AUTOHEADER)
+	rm -f stamp-h1
+	touch $@
+
+distclean-hdr:
+	-rm -f stressapptest_config.h stamp-h1
+install-binPROGRAMS: $(bin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	test -z "$(bindir)" || $(MKDIR_P) "$(DESTDIR)$(bindir)"
+	@list='$(bin_PROGRAMS)'; for p in $$list; do \
+	  p1=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  if test -f $$p \
+	  ; then \
+	    f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
+	   echo " $(INSTALL_PROGRAM_ENV) $(binPROGRAMS_INSTALL) '$$p' '$(DESTDIR)$(bindir)/$$f'"; \
+	   $(INSTALL_PROGRAM_ENV) $(binPROGRAMS_INSTALL) "$$p" "$(DESTDIR)$(bindir)/$$f" || exit 1; \
+	  else :; fi; \
+	done
+
+uninstall-binPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(bin_PROGRAMS)'; for p in $$list; do \
+	  f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+	  echo " rm -f '$(DESTDIR)$(bindir)/$$f'"; \
+	  rm -f "$(DESTDIR)$(bindir)/$$f"; \
+	done
+
+clean-binPROGRAMS:
+	-test -z "$(bin_PROGRAMS)" || rm -f $(bin_PROGRAMS)
+stressapptest$(EXEEXT): $(stressapptest_OBJECTS) $(stressapptest_DEPENDENCIES) 
+	@rm -f stressapptest$(EXEEXT)
+	$(CXXLINK) $(stressapptest_OBJECTS) $(stressapptest_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/adler32memcpy.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/disk_blocks.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/error_diag.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/finelock_queue.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/logger.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/main.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/os.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/os_factory.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pattern.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/queue.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sat.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sat_factory.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/worker.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCXX_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+@am__fastdepCXX_TRUE@	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS:  $(HEADERS) $(SOURCES) stressapptest_config.h.in $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS) stressapptest_config.h.in $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	    $$tags $$unique; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES) stressapptest_config.h.in $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	list='$(SOURCES) $(HEADERS) stressapptest_config.h.in $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS) stressapptest_config.h
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-hdr distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-exec-am: install-binPROGRAMS
+
+install-html: install-html-am
+
+install-info: install-info-am
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-binPROGRAMS \
+	clean-generic ctags distclean distclean-compile \
+	distclean-generic distclean-hdr distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-binPROGRAMS install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-binPROGRAMS
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/adler32memcpy.cc b/src/adler32memcpy.cc
new file mode 100644
index 0000000..69324f7
--- /dev/null
+++ b/src/adler32memcpy.cc
@@ -0,0 +1,406 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "adler32memcpy.h"
+
+// We are using (a modified form of) adler-32 checksum algorithm instead
+// of CRC since adler-32 is faster than CRC.
+// (Comparison: http://guru.multimedia.cx/crc32-vs-adler32/)
+// This form of adler is bit modified, instead of treating the data in
+// units of bytes, 32-bit data is taken as a unit and two 64-bit
+// checksums are done (we could have one checksum but two checksums
+// make the code run faster).
+
+// Adler-32 implementation:
+//   Data is treated as 1-byte numbers and,
+//   there are two 16-bit numbers a and b
+//   Initialize a with 1 and b with 0.
+//   for each data unit 'd'
+//      a += d
+//      b += a
+//   checksum = a<<16 + b
+//   This sum should never overflow.
+//
+// Adler-64+64 implementation:
+//   (applied in this code)
+//   Data is treated as 32-bit numbers and whole data is separated into two
+//   streams, and hence the two checksums a1, a2, b1 and b2.
+//   Initialize a1 and a2 with 1, b1 and b2 with 0
+//   add first dataunit to a1
+//   add a1 to b1
+//   add second dataunit to a1
+//   add a1 to b1
+//   add third dataunit to a2
+//   add a2 to b2
+//   add fourth dataunit to a2
+//   add a2 to b2
+//   ...
+//   repeat the sequence back for next 4 dataunits
+//
+//   variable A = XMM6 and variable B = XMM7.
+//   (a1 = lower 8 bytes of XMM6 and b1 = lower 8 bytes of XMM7)
+
+// Assumptions
+// 1. size_in_bytes is a multiple of 16.
+// 2. srcmem and dstmem are 16 byte aligned.
+// 3. size_in_bytes is less than 2^19 bytes.
+
+// Assumption 3 ensures that there is no overflow when numbers are being
+// added (we can remove this assumption by doing modulus with a prime
+// number when it is just about to overflow but that would be a very costly
+// exercise)
+
+// Returns true if the checksums are equal.
+bool AdlerChecksum::Equals(const AdlerChecksum &other) const {
+  return ( (a1_ == other.a1_) && (a2_ == other.a2_) &&
+           (b1_ == other.b1_) && (b2_ == other.b2_) );
+}
+
+// Returns string representation of the Adler checksum.
+string AdlerChecksum::ToHexString() const {
+  char buffer[128];
+  snprintf(buffer, sizeof(buffer), "%llx%llx%llx%llx", a1_, a2_, b1_, b2_);
+  return string(buffer);
+}
+
+// Sets components of the Adler checksum.
+void AdlerChecksum::Set(uint64 a1, uint64 a2, uint64 b1, uint64 b2) {
+  a1_ = a1;
+  a2_ = a2;
+  b1_ = b1;
+  b2_ = b2;
+}
+
+// Calculates Adler checksum for supplied data.
+bool CalculateAdlerChecksum(uint64 *data64, unsigned int size_in_bytes,
+                            AdlerChecksum *checksum) {
+  // Use this data wrapper to access memory with 64bit read/write.
+  datacast_t data;
+  unsigned int count = size_in_bytes / sizeof(data);
+
+  if (count > (1U) << 19) {
+    // Size is too large, must be strictly less than 512 KB.
+    return false;
+  }
+
+  uint64 a1 = 1;
+  uint64 a2 = 1;
+  uint64 b1 = 0;
+  uint64 b2 = 0;
+
+  unsigned int i = 0;
+  while (i < count) {
+    // Process 64 bits at a time.
+    data.l64 = data64[i];
+    a1 = a1 + data.l32.l;
+    b1 = b1 + a1;
+    a1 = a1 + data.l32.h;
+    b1 = b1 + a1;
+    i++;
+
+    data.l64 = data64[i];
+    a2 = a2 + data.l32.l;
+    b2 = b2 + a2;
+    a2 = a2 + data.l32.h;
+    b2 = b2 + a2;
+    i++;
+  }
+  checksum->Set(a1, a2, b1, b2);
+  return true;
+}
+
+// C implementation of Adler memory copy.
+bool AdlerMemcpyC(uint64 *dstmem64, uint64 *srcmem64,
+                  unsigned int size_in_bytes, AdlerChecksum *checksum) {
+  // Use this data wrapper to access memory with 64bit read/write.
+  datacast_t data;
+  unsigned int count = size_in_bytes / sizeof(data);
+
+  if (count > ((1U) << 19)) {
+    // Size is too large, must be strictly less than 512 KB.
+    return false;
+  }
+
+  uint64 a1 = 1;
+  uint64 a2 = 1;
+  uint64 b1 = 0;
+  uint64 b2 = 0;
+
+  unsigned int i = 0;
+  while (i < count) {
+    // Process 64 bits at a time.
+    data.l64 = srcmem64[i];
+    a1 = a1 + data.l32.l;
+    b1 = b1 + a1;
+    a1 = a1 + data.l32.h;
+    b1 = b1 + a1;
+    dstmem64[i] = data.l64;
+    i++;
+
+    data.l64 = srcmem64[i];
+    a2 = a2 + data.l32.l;
+    b2 = b2 + a2;
+    a2 = a2 + data.l32.h;
+    b2 = b2 + a2;
+    dstmem64[i] = data.l64;
+    i++;
+  }
+  checksum->Set(a1, a2, b1, b2);
+  return true;
+}
+
+// C implementation of Adler memory copy with some float point ops,
+// attempting to warm up the CPU.
+bool AdlerMemcpyWarmC(uint64 *dstmem64, uint64 *srcmem64,
+                      unsigned int size_in_bytes, AdlerChecksum *checksum) {
+  // Use this data wrapper to access memory with 64bit read/write.
+  datacast_t data;
+  unsigned int count = size_in_bytes / sizeof(data);
+
+  if (count > ((1U) << 19)) {
+    // Size is too large, must be strictly less than 512 KB.
+    return false;
+  }
+
+  uint64 a1 = 1;
+  uint64 a2 = 1;
+  uint64 b1 = 0;
+  uint64 b2 = 0;
+
+  double a = 2.0 * static_cast<double>(srcmem64[0]);
+  double b = 5.0 * static_cast<double>(srcmem64[0]);
+  double c = 7.0 * static_cast<double>(srcmem64[0]);
+  double d = 9.0 * static_cast<double>(srcmem64[0]);
+
+  unsigned int i = 0;
+  while (i < count) {
+    // Process 64 bits at a time.
+    data.l64 = srcmem64[i];
+    a1 = a1 + data.l32.l;
+    b1 = b1 + a1;
+    a1 = a1 + data.l32.h;
+    b1 = b1 + a1;
+    dstmem64[i] = data.l64;
+    i++;
+
+    // Warm cpu up.
+    a = a * b;
+    b = b + c;
+
+    data.l64 = srcmem64[i];
+    a2 = a2 + data.l32.l;
+    b2 = b2 + a2;
+    a2 = a2 + data.l32.h;
+    b2 = b2 + a2;
+    dstmem64[i] = data.l64;
+    i++;
+
+    // Warm cpu up.
+    c = c * d;
+    d = d + d;
+  }
+
+  // Warm cpu up.
+  d = a + b + c + d;
+  if (d == 1.0) {
+    // Reference the result so that it can't be discarded by the compiler.
+    printf("Log: This will probably never happen.\n");
+  }
+
+  checksum->Set(a1, a2, b1, b2);
+  return true;
+}
+
+// x86_64 SSE2 assembly implementation of fast and stressful Adler memory copy.
+bool AdlerMemcpyAsm(uint64 *dstmem64, uint64 *srcmem64,
+                    unsigned int size_in_bytes, AdlerChecksum *checksum) {
+// Use assembly implementation where supported.
+#if defined(STRESSAPPTEST_CPU_X86_64) || defined(STRESSAPPTEST_CPU_I686)
+
+// Pull a bit of tricky preprocessing to make the inline asm both
+// 32 bit and 64 bit.
+#ifdef STRESSAPPTEST_CPU_I686  // Instead of coding both, x86...
+#define rAX "%%eax"
+#define rCX "%%ecx"
+#define rDX "%%edx"
+#define rBX "%%ebx"
+#define rSP "%%esp"
+#define rBP "%%ebp"
+#define rSI "%%esi"
+#define rDI "%%edi"
+#endif
+
+#ifdef STRESSAPPTEST_CPU_X86_64  // ...and x64, we use rXX macros.
+#define rAX "%%rax"
+#define rCX "%%rcx"
+#define rDX "%%rdx"
+#define rBX "%%rbx"
+#define rSP "%%rsp"
+#define rBP "%%rbp"
+#define rSI "%%rsi"
+#define rDI "%%rdi"
+#endif
+
+  // Elements 0 to 3 are used for holding checksum terms a1, a2,
+  // b1, b2 respectively. These elements are filled by asm code.
+  // Elements 4 and 5 are used by asm code to for ANDing MMX data and removing
+  // 2 words from each MMX register (A MMX reg has 4 words, by ANDing we are
+  // setting word index 0 and word index 2 to zero).
+  // Element 6 and 7 are used for setting a1 and a2 to 1.
+  volatile uint64 checksum_arr[] __attribute__ ((aligned(16))) =
+      {0, 0, 0, 0, 0x00000000ffffffffUL, 0x00000000ffffffffUL, 1, 1};
+
+  if ((size_in_bytes >> 19) > 0) {
+    // Size is too large. Must be less than 2^19 bytes = 512 KB.
+    return false;
+  }
+
+  // Number of 32-bit words which are not added to a1/a2 in the main loop.
+  uint32 remaining_words = (size_in_bytes % 48) / 4;
+
+  // Since we are moving 48 bytes at a time number of iterations = total size/48
+  // is value of counter.
+  uint32 num_of_48_byte_units = size_in_bytes / 48;
+
+  asm volatile (
+      // Source address is in ESI (extended source index)
+      // destination is in EDI (extended destination index)
+      // and counter is already in ECX (extended counter
+      // index).
+      "cmp  $0, " rCX ";"   // Compare counter to zero.
+      "jz END;"
+
+      // XMM6 is initialized with 1 and XMM7 with 0.
+      "prefetchnta  0(" rSI ");"
+      "prefetchnta 64(" rSI ");"
+      "movdqu   48(" rAX "), %%xmm6;"
+      "xorps      %%xmm7, %%xmm7;"
+
+      // Start of the loop which copies 48 bytes from source to dst each time.
+      "TOP:\n"
+
+      // Make 6 moves each of 16 bytes from srcmem to XMM registers.
+      // We are using 2 words out of 4 words in each XMM register,
+      // word index 0 and word index 2
+      "movdqa   0(" rSI "), %%xmm0;"
+      "movdqu   4(" rSI "), %%xmm1;"  // Be careful to use unaligned move here.
+      "movdqa  16(" rSI "), %%xmm2;"
+      "movdqu  20(" rSI "), %%xmm3;"
+      "movdqa  32(" rSI "), %%xmm4;"
+      "movdqu  36(" rSI "), %%xmm5;"
+
+      // Move 3 * 16 bytes from XMM registers to dstmem.
+      // Note: this copy must be performed before pinsrw instructions since
+      // they will modify the XMM registers.
+      "movntdq %%xmm0,  0(" rDI ");"
+      "movntdq %%xmm2, 16(" rDI ");"
+      "movntdq %%xmm4, 32(" rDI ");"
+
+      // Sets the word[1] and word[3] of XMM0 to XMM5 to zero.
+      "andps 32(" rAX "), %%xmm0;"
+      "andps 32(" rAX "), %%xmm1;"
+      "andps 32(" rAX "), %%xmm2;"
+      "andps 32(" rAX "), %%xmm3;"
+      "andps 32(" rAX "), %%xmm4;"
+      "andps 32(" rAX "), %%xmm5;"
+
+      // Add XMM0 to XMM6 and then add XMM6 to XMM7.
+      // Repeat this for XMM1, ..., XMM5.
+      // Overflow(for XMM7) can occur only if there are more
+      // than 2^16 additions => more than 2^17 words => more than 2^19 bytes so
+      // if size_in_bytes > 2^19 than overflow occurs.
+      "paddq %%xmm0, %%xmm6;"
+      "paddq %%xmm6, %%xmm7;"
+      "paddq %%xmm1, %%xmm6;"
+      "paddq %%xmm6, %%xmm7;"
+      "paddq %%xmm2, %%xmm6;"
+      "paddq %%xmm6, %%xmm7;"
+      "paddq %%xmm3, %%xmm6;"
+      "paddq %%xmm6, %%xmm7;"
+      "paddq %%xmm4, %%xmm6;"
+      "paddq %%xmm6, %%xmm7;"
+      "paddq %%xmm5, %%xmm6;"
+      "paddq %%xmm6, %%xmm7;"
+
+      // Increment ESI and EDI by 48 bytes and decrement counter by 1.
+      "add $48, " rSI ";"
+      "add $48, " rDI ";"
+      "prefetchnta  0(" rSI ");"
+      "prefetchnta 64(" rSI ");"
+      "dec " rCX ";"
+      "jnz TOP;"
+
+      // Now only remaining_words 32-bit words are left.
+      // make a loop, add first two words to a1 and next two to a2 (just like
+      // above loop, the only extra thing we are doing is rechecking
+      // rDX (=remaining_words) everytime we add a number to a1/a2.
+      "REM_IS_STILL_NOT_ZERO:\n"
+      // Unless remaining_words becomes less than 4 words(16 bytes)
+      // there is not much issue and remaining_words will always
+      // be a multiple of four by assumption.
+      "cmp $4, " rDX ";"
+      // In case for some weird reasons if remaining_words becomes
+      // less than 4 but not zero then also break the code and go off to END.
+      "jl END;"
+      // Otherwise just go on and copy data in chunks of 4-words at a time till
+      // whole data (<48 bytes) is copied.
+      "movdqa  0(" rSI "), %%xmm0;"    // Copy next 4-words to XMM0 and to XMM1.
+
+      "movdqa  0(" rSI "), %%xmm5;"    // Accomplish movdqu 4(%rSI) without
+      "pshufd $0x39, %%xmm5, %%xmm1;"  // indexing off memory boundary.
+
+      "movntdq %%xmm0,  0(" rDI ");"   // Copy 4-words to destination.
+      "andps  32(" rAX "), %%xmm0;"
+      "andps  32(" rAX "), %%xmm1;"
+      "paddq     %%xmm0, %%xmm6;"
+      "paddq     %%xmm6, %%xmm7;"
+      "paddq     %%xmm1, %%xmm6;"
+      "paddq     %%xmm6, %%xmm7;"
+      "add $16, " rSI ";"
+      "add $16, " rDI ";"
+      "sub $4, " rDX ";"
+      // Decrement %rDX by 4 since %rDX is number of 32-bit
+      // words left after considering all 48-byte units.
+      "jmp REM_IS_STILL_NOT_ZERO;"
+
+      "END:\n"
+      // Report checksum values A and B (both right now are two concatenated
+      // 64 bit numbers and have to be converted to 64 bit numbers)
+      // seems like Adler128 (since size of each part is 4 byte rather than
+      // 1 byte).
+      "movdqa %%xmm6,   0(" rAX ");"
+      "movdqa %%xmm7,  16(" rAX ");"
+      "sfence;"
+
+      // No output registers.
+      :
+      // Input registers.
+      : "S" (srcmem64), "D" (dstmem64), "a" (checksum_arr),
+        "c" (num_of_48_byte_units), "d" (remaining_words)
+  );  // asm.
+
+  if (checksum != NULL) {
+    checksum->Set(checksum_arr[0], checksum_arr[1],
+                  checksum_arr[2], checksum_arr[3]);
+  }
+
+  // Everything went fine, so return true (this does not mean
+  // that there is no problem with memory this just mean that data was copied
+  // from src to dst and checksum was calculated successfully).
+  return true;
+#else
+  // Fall back to C implementation for anything else.
+  return AdlerMemcpyWarmC(dstmem64, srcmem64, size_in_bytes, checksum);
+#endif
+}
diff --git a/src/adler32memcpy.h b/src/adler32memcpy.h
new file mode 100644
index 0000000..d053340
--- /dev/null
+++ b/src/adler32memcpy.h
@@ -0,0 +1,59 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef STRESSAPPTEST_ADLER32MEMCPY_H_
+#define STRESSAPPTEST_ADLER32MEMCPY_H_
+
+#include <string>
+#include "sattypes.h"
+
+// Encapsulation for Adler checksum. Please see adler32memcpy.cc for more
+// detail on the adler checksum algorithm.
+class AdlerChecksum {
+ public:
+  AdlerChecksum() {}
+  ~AdlerChecksum() {}
+  // Returns true if the checksums are equal.
+  bool Equals(const AdlerChecksum &other) const;
+  // Returns string representation of the Adler checksum
+  string ToHexString() const;
+  // Sets components of the Adler checksum.
+  void Set(uint64 a1, uint64 a2, uint64 b1, uint64 b2);
+
+ private:
+  // Components of Adler checksum.
+  uint64 a1_, a2_, b1_, b2_;
+
+  DISALLOW_COPY_AND_ASSIGN(AdlerChecksum);
+};
+
+// Calculates Adler checksum for supplied data.
+bool CalculateAdlerChecksum(uint64 *data64, unsigned int size_in_bytes,
+                            AdlerChecksum *checksum);
+
+// C implementation of Adler memory copy.
+bool AdlerMemcpyC(uint64 *dstmem64, uint64 *srcmem64,
+                    unsigned int size_in_bytes, AdlerChecksum *checksum);
+
+// C implementation of Adler memory copy with some float point ops,
+// attempting to warm up the CPU.
+bool AdlerMemcpyWarmC(uint64 *dstmem64, uint64 *srcmem64,
+                      unsigned int size_in_bytes, AdlerChecksum *checksum);
+
+// x86_64 SSE2 assembly implementation of fast and stressful Adler memory copy.
+bool AdlerMemcpyAsm(uint64 *dstmem64, uint64 *srcmem64,
+                    unsigned int size_in_bytes, AdlerChecksum *checksum);
+
+
+#endif  // STRESSAPPTEST_ADLER32MEMCPY_H_
diff --git a/src/disk_blocks.cc b/src/disk_blocks.cc
new file mode 100644
index 0000000..c7860b0
--- /dev/null
+++ b/src/disk_blocks.cc
@@ -0,0 +1,313 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Thread-safe container of disk blocks
+
+#include <utility>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "disk_blocks.h"
+
+DiskBlockTable::DiskBlockTable() {
+  nelems_ = 0;
+  pthread_mutex_init(&data_mutex_, NULL);
+  pthread_mutex_init(&parameter_mutex_, NULL);
+  pthread_cond_init(&data_condition_, NULL);
+}
+
+DiskBlockTable::~DiskBlockTable() {
+  CleanTable();
+  pthread_mutex_destroy(&data_mutex_);
+  pthread_mutex_destroy(&parameter_mutex_);
+  pthread_cond_destroy(&data_condition_);
+}
+
+void DiskBlockTable::CleanTable() {
+  pthread_mutex_lock(&data_mutex_);
+  for (map<int64, StorageData*>::iterator it =
+           addr_to_block_.begin(); it != addr_to_block_.end(); ++it) {
+    delete it->second;
+  }
+  addr_to_block_.erase(addr_to_block_.begin(), addr_to_block_.end());
+  nelems_ = 0;
+  pthread_cond_broadcast(&data_condition_);
+  pthread_mutex_unlock(&data_mutex_);
+}
+
+// 64-bit non-negative random number generator.  Stolen from
+// depot/google3/base/tracecontext_unittest.cc.
+int64 DiskBlockTable::Random64() {
+  int64 x = random();
+  x = (x << 30) ^ random();
+  x = (x << 30) ^ random();
+  if (x >= 0)
+    return x;
+  else
+    return -x;
+}
+
+int64 DiskBlockTable::NumElems() {
+  unsigned int nelems;
+  pthread_mutex_lock(&data_mutex_);
+  nelems = nelems_;
+  pthread_mutex_unlock(&data_mutex_);
+  return nelems;
+}
+
+void DiskBlockTable::InsertOnStructure(BlockData *block) {
+  int64 address = block->GetAddress();
+  StorageData *sd = new StorageData();
+  sd->block = block;
+  sd->pos = nelems_;
+  // Creating new block ...
+  pthread_mutex_lock(&data_mutex_);
+  if (pos_to_addr_.size() <= nelems_) {
+    pos_to_addr_.insert(pos_to_addr_.end(), address);
+  } else {
+    pos_to_addr_[nelems_] = address;
+  }
+  addr_to_block_.insert(std::make_pair(address, sd));
+  nelems_++;
+  pthread_cond_broadcast(&data_condition_);
+  pthread_mutex_unlock(&data_mutex_);
+}
+
+int DiskBlockTable::RemoveBlock(BlockData *block) {
+  // For write threads, check the reference counter and remove
+  // it from the structure.
+  int64 address = block->GetAddress();
+  AddrToBlockMap::iterator it = addr_to_block_.find(address);
+  int ret = 1;
+  if (it != addr_to_block_.end()) {
+    int curr_pos = it->second->pos;
+    int last_pos = nelems_ - 1;
+    AddrToBlockMap::iterator last_it = addr_to_block_.find(
+        pos_to_addr_[last_pos]);
+    sat_assert(nelems_ > 0);
+    sat_assert(last_it != addr_to_block_.end());
+    // Everything is fine, updating ...
+    pthread_mutex_lock(&data_mutex_);
+    pos_to_addr_[curr_pos] = pos_to_addr_[last_pos];
+    last_it->second->pos = curr_pos;
+    delete it->second;
+    addr_to_block_.erase(it);
+    nelems_--;
+    block->DecreaseReferenceCounter();
+    if (block->GetReferenceCounter() == 0)
+      delete block;
+    pthread_cond_broadcast(&data_condition_);
+    pthread_mutex_unlock(&data_mutex_);
+  } else {
+    ret = 0;
+  }
+  return ret;
+}
+
+int DiskBlockTable::ReleaseBlock(BlockData *block) {
+  // If is a random thread, just check the reference counter.
+  int ret = 1;
+  pthread_mutex_lock(&data_mutex_);
+  int references = block->GetReferenceCounter();
+  if (references > 0) {
+    if (references == 1)
+      delete block;
+    else
+      block->DecreaseReferenceCounter();
+  } else {
+    ret = 0;
+  }
+  pthread_mutex_unlock(&data_mutex_);
+  return ret;
+}
+
+BlockData *DiskBlockTable::GetRandomBlock() {
+  struct timespec ts;
+  struct timeval tp;
+  int result = 0;
+  gettimeofday(&tp, NULL);
+  ts.tv_sec  = tp.tv_sec;
+  ts.tv_nsec = tp.tv_usec * 1000;
+  ts.tv_sec += 2;  // Wait for 2 seconds.
+  pthread_mutex_lock(&data_mutex_);
+  while (!nelems_ && result != ETIMEDOUT) {
+    result = pthread_cond_timedwait(&data_condition_, &data_mutex_, &ts);
+  }
+  if (result == ETIMEDOUT) {
+    pthread_mutex_unlock(&data_mutex_);
+    return NULL;
+  } else {
+    int64 random_number = Random64();
+    int64 random_pos = random_number % nelems_;
+    int64 address = pos_to_addr_[random_pos];
+    AddrToBlockMap::const_iterator it = addr_to_block_.find(address);
+    sat_assert(it != addr_to_block_.end());
+    BlockData *b = it->second->block;
+    // A block is returned only if its content is written on disk.
+    if (b->BlockIsInitialized()) {
+      b->IncreaseReferenceCounter();
+    } else {
+      b = NULL;
+    }
+    pthread_mutex_unlock(&data_mutex_);
+    return b;
+  }
+}
+
+void DiskBlockTable::SetParameters(
+    int sector_size, int write_block_size, int64 device_sectors,
+    int64 segment_size, string device_name) {
+  pthread_mutex_lock(&parameter_mutex_);
+  sector_size_ = sector_size;
+  write_block_size_ = write_block_size;
+  device_sectors_ = device_sectors;
+  segment_size_ = segment_size;
+  device_name_ = device_name;
+  CleanTable();
+  pthread_mutex_unlock(&parameter_mutex_);
+}
+
+BlockData *DiskBlockTable::GetUnusedBlock(int64 segment) {
+  int64 sector = 0;
+  BlockData *block = new BlockData();
+
+  bool good_sequence = false;
+  int num_sectors;
+
+  if (block == NULL) {
+    logprintf(0, "Process Error: Unable to allocate memory "
+              "for sector data for disk %s.\n", device_name_.c_str());
+    return NULL;
+  }
+
+  pthread_mutex_lock(&parameter_mutex_);
+
+  sat_assert(device_sectors_ != 0);
+
+  // Align the first sector with the beginning of a write block
+  num_sectors = write_block_size_ / sector_size_;
+
+  for (int i = 0; i < kBlockRetry && !good_sequence; i++) {
+    good_sequence = true;
+
+    // Use the entire disk or a small segment of the disk to allocate the first
+    // sector in the block from.
+
+    if (segment_size_ == -1) {
+      sector = (Random64() & 0x7FFFFFFFFFFFFFFFLL) % (
+          device_sectors_ / num_sectors);
+      sector *= num_sectors;
+    } else {
+      sector = (Random64() & 0x7FFFFFFFFFFFFFFFLL) % (
+          segment_size_ / num_sectors);
+      sector *= num_sectors;
+      sector += segment * segment_size_;
+
+      // Make sure the block is within the segment.
+      if (sector + num_sectors > (segment + 1) * segment_size_) {
+        good_sequence = false;
+        continue;
+      }
+    }
+    // Make sure the entire block is in range.
+    if (sector + num_sectors > device_sectors_) {
+      good_sequence = false;
+      continue;
+    }
+    // Check to see if the block is free. Since the blocks are
+    // now aligned to the write_block_size, it is not necessary
+    // to check each sector, just the first block (a sector
+    // overlap will never occur).
+
+    pthread_mutex_lock(&data_mutex_);
+    if (addr_to_block_.find(sector) != addr_to_block_.end()) {
+      good_sequence = false;
+    }
+    pthread_mutex_unlock(&data_mutex_);
+  }
+
+  if (good_sequence) {
+    block->SetParameters(sector, write_block_size_);
+    block->IncreaseReferenceCounter();
+    InsertOnStructure(block);
+  } else {
+    // No contiguous sequence of num_sectors sectors was found within
+    // kBlockRetry iterations so return an error value.
+    delete block;
+    block = NULL;
+  }
+  pthread_mutex_unlock(&parameter_mutex_);
+
+  return block;
+}
+
+// BlockData
+
+BlockData::BlockData() {
+  addr_ = 0;
+  size_ = 0;
+  references_ = 0;
+  initialized_ = false;
+  pthread_mutex_init(&data_mutex_, NULL);
+}
+
+BlockData::~BlockData() {
+  pthread_mutex_destroy(&data_mutex_);
+}
+
+void BlockData::SetParameters(int64 address, int64 size) {
+  addr_ = address;
+  size_ = size;
+}
+
+void BlockData::IncreaseReferenceCounter() {
+  references_++;
+}
+
+void BlockData::DecreaseReferenceCounter() {
+  references_--;
+}
+
+int BlockData::GetReferenceCounter() {
+  return references_;
+}
+
+void BlockData::SetBlockAsInitialized() {
+  pthread_mutex_lock(&data_mutex_);
+  initialized_ = true;
+  pthread_mutex_unlock(&data_mutex_);
+}
+
+bool BlockData::BlockIsInitialized() {
+  pthread_mutex_lock(&data_mutex_);
+  bool initialized = initialized_;
+  pthread_mutex_unlock(&data_mutex_);
+  return initialized;
+}
+
+int64 BlockData::GetAddress() {
+  return addr_;
+}
+
+int64 BlockData::GetSize() {
+  return size_;
+}
+
+Pattern *BlockData::GetPattern() {
+  return pattern_;
+}
+
+void BlockData::SetPattern(Pattern *p) {
+  pattern_ = p;
+}
diff --git a/src/disk_blocks.h b/src/disk_blocks.h
new file mode 100644
index 0000000..cb634c9
--- /dev/null
+++ b/src/disk_blocks.h
@@ -0,0 +1,115 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Interface for a thread-safe container of disk blocks
+
+#ifndef STRESSAPPTEST_DISK_BLOCKS_H_
+#define STRESSAPPTEST_DISK_BLOCKS_H_
+
+#include <sys/types.h>
+#include <pthread.h>
+#include <time.h>
+#include <sys/time.h>
+#include <errno.h>
+#include <map>
+#include <vector>
+#include <string>
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "pattern.h"
+
+// Data about a block written to disk so that it can be verified later.
+class BlockData {
+ public:
+  BlockData();
+  ~BlockData();
+  void SetParameters(int64 address, int64 size);
+  void IncreaseReferenceCounter();
+  void DecreaseReferenceCounter();
+  int GetReferenceCounter();
+  void SetBlockAsInitialized();
+  bool BlockIsInitialized();
+  int64 GetAddress();
+  int64 GetSize();
+  void SetPattern(Pattern *p);
+  Pattern *GetPattern();
+ protected:
+  int64 addr_;         // address of first sector in block
+  int64 size_;         // size of block
+  int references_;      // reference counter
+  bool initialized_;     // flag indicating the block was written on disk
+  Pattern *pattern_;
+  pthread_mutex_t data_mutex_;
+  DISALLOW_COPY_AND_ASSIGN(BlockData);
+};
+
+// Disk Block table - store data from blocks to be write / read by
+// a DiskThread
+class DiskBlockTable {
+ public:
+  DiskBlockTable();
+  virtual ~DiskBlockTable();
+
+  // Get Number of elements stored on table
+  int64 NumElems();
+  // Clean all table data
+  void CleanTable();
+  // Get a random block from the list. Only returns if a element
+  // is available (consider that other thread must have added them.
+  BlockData *GetRandomBlock();
+  // Set all initial parameters. Assumes all existent data is
+  // invalid and, therefore, must be removed.
+  void SetParameters(int sector_size, int write_block_size,
+                     int64 device_sectors,
+                     int64 segment_size,
+                     string device_name);
+  // Return a new block in a unused address.
+  BlockData *GetUnusedBlock(int64 segment);
+  // Remove block from structure (called by write threads)
+  int RemoveBlock(BlockData *block);
+  // Release block to be erased (called by random threads)
+  int ReleaseBlock(BlockData *block);
+
+ protected:
+
+  void InsertOnStructure(BlockData *block);
+  //  Generate a random 64-bit integer (virtual so it could be
+  //  override by the tests)
+  virtual int64 Random64();
+
+  struct StorageData {
+    BlockData *block;
+    int pos;
+  };
+
+  static const int kBlockRetry = 100;       // Number of retries to allocate
+                                            // sectors.
+
+  typedef map<int64, StorageData*> AddrToBlockMap;
+  typedef vector<int64> PosToAddrVector;
+  PosToAddrVector pos_to_addr_;
+  AddrToBlockMap addr_to_block_;
+  uint64 nelems_;
+  int sector_size_;          // Sector size, in bytes
+  int write_block_size_;     // Block size, in bytes
+  string device_name_;       // Device name
+  int64 device_sectors_;     // Number of sectors in device
+  int64 segment_size_;       // Segment size, in bytes
+  pthread_mutex_t data_mutex_;
+  pthread_cond_t data_condition_;
+  pthread_mutex_t parameter_mutex_;
+  DISALLOW_COPY_AND_ASSIGN(DiskBlockTable);
+};
+
+#endif  // STRESSAPPTEST_BLOCKS_H_
diff --git a/src/error_diag.cc b/src/error_diag.cc
new file mode 100644
index 0000000..53f056f
--- /dev/null
+++ b/src/error_diag.cc
@@ -0,0 +1,317 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// error_diag.cc: Collects device errors for analysis to more accurately
+//                pin-point failed component.
+
+#include <set>
+#include <list>
+#include <map>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "error_diag.h"
+#include "sattypes.h"
+
+
+// DeviceTree constructor.
+DeviceTree::DeviceTree(string name)
+  : parent_(0), name_(name) {
+  pthread_mutex_init(&device_tree_mutex_, NULL);
+}
+
+// DeviceTree destructor.
+DeviceTree::~DeviceTree() {
+  // Deallocate subtree devices.
+  for (std::map<string, DeviceTree*>::iterator itr = subdevices_.begin();
+      itr != subdevices_.end();
+      ++itr) {
+    delete itr->second;
+  }
+  // Deallocate device errors.
+  for (std::list<ErrorInstance*>::iterator itr = errors_.begin();
+      itr != errors_.end();
+      ++itr) {
+    delete (*itr);
+  }
+  pthread_mutex_destroy(&device_tree_mutex_);
+}
+
+// Atomically find named device in sub device tree.
+// Returns 0 if not found
+DeviceTree *DeviceTree::FindInSubTree(string name) {
+  DeviceTree *ret;
+  pthread_mutex_lock(&device_tree_mutex_);
+  ret = UnlockedFindInSubTree(name);
+  pthread_mutex_unlock(&device_tree_mutex_);
+  return ret;
+}
+
+// Find named device in sub device tree (Non-atomic).
+// Returns 0 if not found
+DeviceTree *DeviceTree::UnlockedFindInSubTree(string name) {
+  std::map<string, DeviceTree*>::iterator itr = subdevices_.find(name);
+  if (itr != subdevices_.end()) {
+    return itr->second;
+  } else {
+    // Search sub-tree.
+    for (std::map<string, DeviceTree*>::iterator itr = subdevices_.begin();
+        itr != subdevices_.end();
+        ++itr) {
+      DeviceTree *result = itr->second->UnlockedFindInSubTree(name);
+      if (result != 0)
+        return result;
+    }
+    return 0;
+  }
+}
+
+// Atomically add error instance to device.
+void DeviceTree::AddErrorInstance(ErrorInstance *error_instance) {
+  pthread_mutex_lock(&device_tree_mutex_);
+  errors_.push_back(error_instance);
+  pthread_mutex_unlock(&device_tree_mutex_);
+}
+
+// Find or add queried device as necessary.
+DeviceTree *DeviceTree::FindOrAddDevice(string name) {
+  // Assume named device does not exist and try to insert the device anyway.
+  // No-op if named device already exists.
+  InsertSubDevice(name);
+  // Find and return sub device pointer.
+  return FindInSubTree(name);
+}
+
+// Pretty prints device tree.
+void DeviceTree::PrettyPrint(string spacer) {
+  for (std::map<string, DeviceTree*>::iterator itr = subdevices_.begin();
+      itr != subdevices_.end();
+      ++itr) {
+    printf("%s%s\n", spacer.c_str(), itr->first.c_str());
+    itr->second->PrettyPrint(spacer+spacer);
+  }
+}
+
+// Atomically add sub device.
+// No-op if named device already exists.
+void DeviceTree::InsertSubDevice(string name) {
+  pthread_mutex_lock(&device_tree_mutex_);
+  if (UnlockedFindInSubTree(name) != 0) {
+    pthread_mutex_unlock(&device_tree_mutex_);
+    return;
+  }
+  subdevices_[name] = new DeviceTree(name);
+  subdevices_[name]->parent_ = this;
+  pthread_mutex_unlock(&device_tree_mutex_);
+}
+
+
+// Returns true of any error associated with this device is fatal.
+bool DeviceTree::KnownBad() {
+  pthread_mutex_lock(&device_tree_mutex_);
+  for (std::list<ErrorInstance*>::iterator itr = errors_.begin();
+      itr != errors_.end();
+      ++itr) {
+    if ((*itr)->severity_ == SAT_ERROR_FATAL) {
+      pthread_mutex_unlock(&device_tree_mutex_);
+      return true;
+    }
+  }
+  pthread_mutex_unlock(&device_tree_mutex_);
+  return false;
+}
+
+
+// ErrorDiag constructor.
+ErrorDiag::ErrorDiag() {
+  os_ = 0;
+  system_tree_root_ = 0;
+}
+
+// ErrorDiag destructor.
+ErrorDiag::~ErrorDiag() {
+  if (system_tree_root_)
+    delete system_tree_root_;
+}
+
+// Set platform specific handle and initialize device tree.
+// Returns false on error. true otherwise.
+bool ErrorDiag::set_os(OsLayer *os) {
+  os_ = os;
+  return(InitializeDeviceTree());
+}
+
+// Create and initialize system device tree.
+// Returns false on error. true otherwise.
+bool ErrorDiag::InitializeDeviceTree() {
+  system_tree_root_ = new DeviceTree("system_root");
+  if (!system_tree_root_)
+    return false;
+  return true;
+}
+
+// Logs info about a CECC.
+// Returns -1 on error, 1 if diagnoser reports error externally; 0 otherwise.
+int ErrorDiag::AddCeccError(string dimm_string) {
+  DeviceTree *dimm_device = system_tree_root_->FindOrAddDevice(dimm_string);
+  ECCErrorInstance *error = new ECCErrorInstance;
+  if (!error)
+    return -1;
+  error->severity_ = SAT_ERROR_CORRECTABLE;
+  dimm_device->AddErrorInstance(error);
+  return 0;
+}
+
+// Logs info about a UECC.
+// Returns -1 on error, 1 if diagnoser reports error externally; 0 otherwise.
+int ErrorDiag::AddUeccError(string dimm_string) {
+  DeviceTree *dimm_device = system_tree_root_->FindOrAddDevice(dimm_string);
+  ECCErrorInstance *error = new ECCErrorInstance;
+  if (!error)
+    return -1;
+  error->severity_ = SAT_ERROR_FATAL;
+  dimm_device->AddErrorInstance(error);
+  return 0;
+}
+
+// Logs info about a miscompare.
+// Returns -1 on error, 1 if diagnoser reports error externally; 0 otherwise.
+int ErrorDiag::AddMiscompareError(string dimm_string, uint64 addr, int count) {
+  DeviceTree *dimm_device = system_tree_root_->FindOrAddDevice(dimm_string);
+  MiscompareErrorInstance *error = new MiscompareErrorInstance;
+  if (!error)
+    return -1;
+  error->severity_ = SAT_ERROR_FATAL;
+  error->addr_ = addr;
+  dimm_device->AddErrorInstance(error);
+  os_->ErrorReport(dimm_string.c_str(), "miscompare", count);
+  return 1;
+}
+
+// Utility Function to translate a virtual address to DIMM number.
+// Returns -1 on error, 1 if diagnoser reports error externally; 0 otherwise.
+string ErrorDiag::AddressToDimmString(OsLayer *os, void *addr, int offset) {
+  char dimm_string[256] = "";
+  char *vbyteaddr = reinterpret_cast<char*>(addr) + offset;
+  uint64 paddr = os->VirtualToPhysical(vbyteaddr);
+  os->FindDimm(paddr, dimm_string, sizeof(dimm_string));
+  return string(dimm_string);
+}
+
+// Info about a miscompare from a drive.
+// Returns -1 on error, 1 if diagnoser reports error externally; 0 otherwise.
+int ErrorDiag::AddHDDMiscompareError(string devicename, int block, int offset,
+                                     void *src_addr, void *dst_addr) {
+  bool mask_hdd_error = false;
+
+  HDDMiscompareErrorInstance *error = new HDDMiscompareErrorInstance;
+  if (!error)
+    return -1;
+
+  error->addr_ = reinterpret_cast<uint64>(src_addr);
+  error->addr2_ = reinterpret_cast<uint64>(dst_addr);
+  error->offset_ = offset;
+  error->block_ = block;
+
+  string src_dimm = AddressToDimmString(os_, src_addr, offset);
+  string dst_dimm = AddressToDimmString(os_, dst_addr, offset);
+
+  // DIMM name look up success
+  if (src_dimm.compare("DIMM Unknown")) {
+    // Add src DIMM as possible miscompare cause.
+    DeviceTree *src_dimm_dev = system_tree_root_->FindOrAddDevice(src_dimm);
+    error->causes_.insert(src_dimm_dev);
+    if (src_dimm_dev->KnownBad()) {
+      mask_hdd_error = true;
+      logprintf(5, "Log: supressed %s miscompare report: "
+                "known bad source: %s\n", devicename.c_str(), src_dimm.c_str());
+    }
+  }
+  if (dst_dimm.compare("DIMM Unknown")) {
+    // Add dst DIMM as possible miscompare cause.
+    DeviceTree *dst_dimm_dev = system_tree_root_->FindOrAddDevice(dst_dimm);
+    error->causes_.insert(dst_dimm_dev);
+    if (dst_dimm_dev->KnownBad()) {
+      mask_hdd_error = true;
+      logprintf(5, "Log: supressed %s miscompare report: "
+                "known bad destination: %s\n", devicename.c_str(),
+                dst_dimm.c_str());
+    }
+  }
+
+  DeviceTree *hdd_dev = system_tree_root_->FindOrAddDevice(devicename);
+  hdd_dev->AddErrorInstance(error);
+
+  // HDD error was not masked by bad DIMMs: report bad HDD.
+  if (!mask_hdd_error) {
+    os_->ErrorReport(devicename.c_str(), "miscompare", 1);
+    error->severity_ = SAT_ERROR_FATAL;
+    return 1;
+  }
+  return 0;
+}
+
+// Info about a sector tag miscompare from a drive.
+// Returns -1 on error, 1 if diagnoser reports error externally; 0 otherwise.
+int ErrorDiag::AddHDDSectorTagError(string devicename, int block, int offset,
+                                    int sector, void *src_addr,
+                                    void *dst_addr) {
+  bool mask_hdd_error = false;
+
+  HDDSectorTagErrorInstance *error = new HDDSectorTagErrorInstance;
+  if (!error)
+    return -1;
+
+  error->addr_ = reinterpret_cast<uint64>(src_addr);
+  error->addr2_ = reinterpret_cast<uint64>(dst_addr);
+  error->sector_ = sector;
+  error->block_ = block;
+
+  string src_dimm = AddressToDimmString(os_, src_addr, offset);
+  string dst_dimm = AddressToDimmString(os_, dst_addr, offset);
+
+  // DIMM name look up success
+  if (src_dimm.compare("DIMM Unknown")) {
+    // Add src DIMM as possible miscompare cause.
+    DeviceTree *src_dimm_dev = system_tree_root_->FindOrAddDevice(src_dimm);
+    error->causes_.insert(src_dimm_dev);
+    if (src_dimm_dev->KnownBad()) {
+      mask_hdd_error = true;
+      logprintf(5, "Log: supressed %s sector tag error report: "
+                "known bad source: %s\n", devicename.c_str(), src_dimm.c_str());
+    }
+  }
+  if (dst_dimm.compare("DIMM Unknown")) {
+    // Add dst DIMM as possible miscompare cause.
+    DeviceTree *dst_dimm_dev = system_tree_root_->FindOrAddDevice(dst_dimm);
+    error->causes_.insert(dst_dimm_dev);
+    if (dst_dimm_dev->KnownBad()) {
+      mask_hdd_error = true;
+      logprintf(5, "Log: supressed %s sector tag error report: "
+                "known bad destination: %s\n", devicename.c_str(),
+                dst_dimm.c_str());
+    }
+  }
+
+  DeviceTree *hdd_dev = system_tree_root_->FindOrAddDevice(devicename);
+  hdd_dev->AddErrorInstance(error);
+
+  // HDD error was not masked by bad DIMMs: report bad HDD.
+  if (!mask_hdd_error) {
+    os_->ErrorReport(devicename.c_str(), "sector", 1);
+    error->severity_ = SAT_ERROR_FATAL;
+    return 1;
+  }
+  return 0;
+}
diff --git a/src/error_diag.h b/src/error_diag.h
new file mode 100644
index 0000000..7faedb8
--- /dev/null
+++ b/src/error_diag.h
@@ -0,0 +1,167 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// error_diag.h: Ambiguous error diagnosis class
+
+#ifndef STRESSAPPTEST_ERROR_DIAG_H_
+#define STRESSAPPTEST_ERROR_DIAG_H_
+
+#include <pthread.h>
+#include <list>
+#include <map>
+#include <set>
+#include <string>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "sattypes.h"
+#include "os.h"
+
+class ErrorInstance;
+
+// This describes the components of the system.
+class DeviceTree {
+ public:
+  explicit DeviceTree(string name);
+  ~DeviceTree();
+
+  // Atomically find arbitrary device in subtree.
+  DeviceTree *FindInSubTree(string name);
+  // Find or add named device.
+  DeviceTree *FindOrAddDevice(string name);
+  // Atomically add sub device.
+  void InsertSubDevice(string name);
+  // Returns parent device.
+  DeviceTree *GetParent() { return parent_; }
+  // Pretty prints device tree.
+  void PrettyPrint(string spacer = " ");
+  // Atomically add error instance to device.
+  void AddErrorInstance(ErrorInstance *error_instance);
+  // Returns true of device is known to be bad.
+  bool KnownBad();
+  // Returns number of direct sub devices.
+  int NumDirectSubDevices() { return subdevices_.size(); }
+
+ private:
+  // Unlocked version of FindInSubTree.
+  DeviceTree *UnlockedFindInSubTree(string name);
+
+  std::map<string, DeviceTree*> subdevices_;    // Map of sub-devices.
+  std::list<ErrorInstance*> errors_;            // Log of errors.
+  DeviceTree *parent_;                          // Pointer to parent device.
+  string name_;                                 // Device name.
+  pthread_mutex_t device_tree_mutex_;           // Mutex protecting device tree.
+};
+
+
+// enum type for collected errors.
+enum SATErrorType {
+  SAT_ERROR_NONE = 0,
+  SAT_ERROR_ECC,
+  SAT_ERROR_MISCOMPARE,
+  SAT_ERROR_SECTOR_TAG,
+};
+
+// enum type for error severity.
+enum SATErrorSeverity {
+  SAT_ERROR_CORRECTABLE = 0,
+  SAT_ERROR_FATAL,
+};
+
+// This describes an error and it's likely causes.
+class ErrorInstance {
+ public:
+  ErrorInstance(): type_(SAT_ERROR_NONE), severity_(SAT_ERROR_CORRECTABLE) {}
+
+  SATErrorType type_;             // Type of error: ECC, miscompare, sector.
+  SATErrorSeverity severity_;     // Correctable, or fatal.
+  std::set<DeviceTree*> causes_;  // Devices that can cause this type of error.
+};
+
+// This describes ECC errors.
+class ECCErrorInstance: public ErrorInstance {
+ public:
+  ECCErrorInstance() { type_ = SAT_ERROR_ECC; }
+
+  uint64 addr_;               // Address where error occured.
+};
+
+// This describes miscompare errors.
+class MiscompareErrorInstance: public ErrorInstance {
+ public:
+  MiscompareErrorInstance() { type_ = SAT_ERROR_MISCOMPARE; }
+
+  uint64 addr_;               // Address where miscompare occured.
+};
+
+// This describes HDD miscompare errors.
+class HDDMiscompareErrorInstance: public MiscompareErrorInstance {
+ public:
+  uint64 addr2_;             // addr_ and addr2_ are src and dst memory addr.
+  int offset_;               // offset.
+  int block_;                // error block.
+};
+
+// This describes HDD miscompare errors.
+class HDDSectorTagErrorInstance: public ErrorInstance {
+ public:
+  HDDSectorTagErrorInstance() { type_ = SAT_ERROR_SECTOR_TAG; }
+
+  uint64 addr_;
+  uint64 addr2_;             // addr_ and addr2_ are src and dst memory addr.
+  int sector_;               // error sector.
+  int block_;                // error block.
+};
+
+// Generic error storage and sorting class.
+class ErrorDiag {
+ public:
+  ErrorDiag();
+  virtual ~ErrorDiag();
+
+  // Add info about a CECC.
+  virtual int AddCeccError(string dimm_string);
+
+  // Add info about a UECC.
+  virtual int AddUeccError(string dimm_string);
+
+  // Add info about a miscompare.
+  virtual int AddMiscompareError(string dimm_string, uint64 addr, int count);
+
+  // Add info about a miscompare from a drive.
+  virtual int AddHDDMiscompareError(string devicename, int block, int offset,
+                            void *src_addr, void *dst_addr);
+
+  // Add info about a sector tag miscompare from a drive.
+  virtual int AddHDDSectorTagError(string devicename, int block, int offset,
+                           int sector, void *src_addr, void *dst_addr);
+
+  // Set platform specific handle and initialize device tree.
+  bool set_os(OsLayer *os);
+
+ protected:
+  // Create and initialize system device tree.
+  virtual bool InitializeDeviceTree();
+
+  // Utility Function to translate a virtual address to DIMM number.
+  string AddressToDimmString(OsLayer *os, void *addr, int offset);
+
+  DeviceTree *system_tree_root_;  // System device tree.
+  OsLayer *os_;                   // Platform handle.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ErrorDiag);
+};
+
+#endif  // STRESSAPPTEST_ERROR_DIAG_H_
diff --git a/src/finelock_queue.cc b/src/finelock_queue.cc
new file mode 100644
index 0000000..8d914b8
--- /dev/null
+++ b/src/finelock_queue.cc
@@ -0,0 +1,448 @@
+// Copyright 2007 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This is an interface to a simple thread safe container with fine-grain locks,
+// used to hold data blocks and patterns.
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "finelock_queue.h"
+#include "os.h"
+
+// Page entry queue implementation follows.
+// Push and Get functions are analogous to lock and unlock operations on a given
+// page entry, while preserving queue semantics.
+//
+// The actual 'queue' implementation is actually just an array. The entries are
+// never shuffled or re-ordered like that of a real queue. Instead, Get
+// functions return a random page entry of a given type and lock that particular
+// page entry until it is unlocked by corresponding Put functions.
+//
+// In this implementation, a free page is those page entries where pattern is
+// null (pe->pattern == 0)
+
+
+// Constructor: Allocates memory and initialize locks.
+FineLockPEQueue::FineLockPEQueue(
+                 uint64 queuesize, int64 pagesize) {
+  q_size_ = queuesize;
+  pages_ = new struct page_entry[q_size_];
+  pagelocks_ = new pthread_mutex_t[q_size_];
+  page_size_ = pagesize;
+
+  // What metric should we measure this run.
+  queue_metric_ = kTouch;
+
+  {  // Init all the page locks.
+    for (uint64 i = 0; i < q_size_; i++) {
+        pthread_mutex_init(&(pagelocks_[i]), NULL);
+        // Pages start out owned (locked) by Sat::InitializePages.
+        // A locked state indicates that the page state is unknown,
+        // and the lock should not be aquired. As InitializePages creates
+        // the page records, they will be inserted and unlocked, at which point
+        // they are ready to be aquired and filled by worker threads.
+        sat_assert(pthread_mutex_lock(&(pagelocks_[i])) == 0);
+    }
+  }
+
+  {  // Init the random number generator.
+    for (int i = 0; i < 4; i++) {
+      rand_seed_[i] = i + 0xbeef;
+      pthread_mutex_init(&(randlocks_[i]), NULL);
+    }
+  }
+
+  // Try to make a linear congruential generator with our queue size.
+  // We need this to deterministically search all the queue (being able to find
+  // a single available element is a design requirement), but we don't want to
+  // cause any page to be more likley chosen than another. The previous
+  // sequential retry heavily biased pages at the beginning of a bunch, or
+  // isolated pages surrounded by unqualified ones.
+  int64 length = queuesize;
+  int64 modlength = length;
+  int64 a;
+  int64 c;
+
+  if (length < 3) {
+    a = 1;
+    c = 1;
+  } else {
+    // Search for a nontrivial generator.
+    a = getA(length) % length;
+    // If this queue size doesn't have a nontrivial generator (where the
+    // multiplier is greater then one) we'll check increasing queue sizes,
+    // and discard out of bounds results.
+    while (a == 1) {
+      modlength++;
+      a = getA(modlength) % modlength;
+    }
+    c = getC(modlength);
+  }
+
+  // This is our final generator.
+  a_ = a;
+  c_ = c;
+  modlength_ = modlength;
+}
+
+// Part of building a linear congruential generator n1 = (a * n0 + c) % m
+// Get 'a', where a - 1 must be divisible by all prime
+// factors of 'm', our queue size.
+int64 FineLockPEQueue::getA(int64 m) {
+  int64 remaining = m;
+  int64 a = 1;
+  if ((((remaining / 4) * 4) == remaining)) {
+    a = 2;
+  }
+  // For each number, let's see if it's divisible,
+  // then divide it out.
+  for (int64 i = 2; i <= m; i++) {
+    if (((remaining / i) * i) == remaining) {
+      remaining /= i;
+      // Keep dividing it out until there's no more.
+      while (((remaining / i) * i) == remaining)
+        remaining /= i;
+      a *= i;
+    }
+  }
+
+  // Return 'a' as specified.
+  return (a + 1) % m;
+}
+
+
+// Part of building a linear congruential generator n1 = (a * n0 + c) % m
+// Get a prime number approx 3/4 the size of our queue.
+int64 FineLockPEQueue::getC(int64 m) {
+  // Start here at 3/4.
+  int64 start = (3 * m) / 4 + 1;
+  int64 possible_prime = start;
+  // Keep trying until we find a prime.
+  for (possible_prime = start; possible_prime > 1; possible_prime--) {
+    bool failed = false;
+    for (int64 i = 2; i < possible_prime; i++) {
+      if (((possible_prime / i) * i) == possible_prime) {
+        failed = true;
+        break;
+      }
+    }
+    if (!failed) {
+      return possible_prime;
+    }
+  }
+  // One is prime enough.
+  return 1;
+}
+
+// Destructor: Clean-up allocated memory and destroy pthread locks.
+FineLockPEQueue::~FineLockPEQueue() {
+  uint64 i;
+  for (i = 0; i < q_size_; i++)
+    pthread_mutex_destroy(&(pagelocks_[i]));
+  delete[] pagelocks_;
+  delete[] pages_;
+  for (i = 0; i < 4; i++) {
+    pthread_mutex_destroy(&(randlocks_[i]));
+  }
+}
+
+
+bool FineLockPEQueue::QueueAnalysis() {
+  const char *measurement = "Error";
+  uint64 buckets[32];
+
+  if (queue_metric_ == kTries)
+    measurement = "Failed retrievals";
+  else if (queue_metric_ == kTouch)
+    measurement = "Reads per page";
+
+  // Buckets for each log2 access counts.
+  for (int b = 0; b < 32; b++) {
+    buckets[b] = 0;
+  }
+
+  // Bucketize the page counts by highest bit set.
+  for (uint64 i = 0; i < q_size_; i++) {
+    uint32 readcount = pages_[i].touch;
+    int b = 0;
+    for (b = 0; b < 31; b++) {
+      if (readcount < (1u << b))
+        break;
+    }
+
+    buckets[b]++;
+  }
+
+  logprintf(12, "Log:  %s histogram\n", measurement);
+  for (int b = 0; b < 32; b++) {
+    if (buckets[b])
+      logprintf(12, "Log:  %12d - %12d: %12d\n",
+          ((1 << b) >> 1), 1 << b, buckets[b]);
+  }
+
+  return true;
+}
+
+namespace {
+// Callback mechanism for exporting last action.
+OsLayer *g_os;
+FineLockPEQueue *g_fpqueue = 0;
+
+// Global callback to hook into Os object.
+bool err_log_callback(uint64 paddr, string *buf) {
+  if (g_fpqueue) {
+    return g_fpqueue->ErrorLogCallback(paddr, buf);
+  }
+  return false;
+}
+}
+
+// Setup global state for exporting callback.
+void FineLockPEQueue::set_os(OsLayer *os) {
+  g_os = os;
+  g_fpqueue = this;
+}
+
+OsLayer::ErrCallback FineLockPEQueue::get_err_log_callback() {
+  return err_log_callback;
+}
+
+// This call is used to export last transaction info on a particular physical
+// address.
+bool FineLockPEQueue::ErrorLogCallback(uint64 paddr, string *message) {
+  struct page_entry pe;
+  OsLayer *os = g_os;
+  sat_assert(g_os);
+  char buf[256];
+
+  // Find the page of this paddr.
+  int gotpage = GetPageFromPhysical(paddr, &pe);
+  if (!gotpage) {
+    return false;
+  }
+
+  // Find offset into the page.
+  uint64 addr_diff = paddr - pe.paddr;
+
+  // Find vaddr of this paddr. Make sure it matches,
+  // as sometimes virtual memory is not contiguous.
+  char *vaddr =
+    reinterpret_cast<char*>(os->PrepareTestMem(pe.offset, page_size_));
+  uint64 new_paddr = os->VirtualToPhysical(vaddr + addr_diff);
+  os->ReleaseTestMem(vaddr, pe.offset, page_size_);
+
+  // Is the physical address at this page offset the same as
+  // the physical address we were given?
+  if (new_paddr != paddr) {
+    return false;
+  }
+
+  // Print all the info associated with this page.
+  message->assign(" (Last Transaction:");
+
+  if (pe.lastpattern) {
+    int offset = addr_diff / 8;
+    datacast_t data;
+
+    data.l32.l = pe.lastpattern->pattern(offset << 1);
+    data.l32.h = pe.lastpattern->pattern((offset << 1) + 1);
+
+    snprintf(buf, sizeof(buf), " %s data=%#016llx",
+                  pe.lastpattern->name(), data.l64);
+    message->append(buf);
+  }
+  snprintf(buf, sizeof(buf), " tsc=%#llx)", pe.ts);
+  message->append(buf);
+  return true;
+}
+
+bool FineLockPEQueue::GetPageFromPhysical(uint64 paddr,
+                                          struct page_entry *pe) {
+  // Traverse through array until finding a page
+  // that contains the address we want..
+  for (uint64 i = 0; i < q_size_; i++) {
+    uint64 page_addr = pages_[i].paddr;
+    // This assumes linear vaddr.
+    if ((page_addr <= paddr) && (page_addr + page_size_ > paddr)) {
+      *pe = pages_[i];
+      return true;
+    }
+  }
+  return false;
+}
+
+
+// Get a random number from the slot we locked.
+uint64 FineLockPEQueue::GetRandom64FromSlot(int slot) {
+  // 64 bit LCG numbers suggested on the internets by
+  // http://nuclear.llnl.gov/CNP/rng/rngman/node4.html and others.
+  uint64 result = 2862933555777941757ULL * rand_seed_[slot] + 3037000493ULL;
+  rand_seed_[slot] = result;
+  return result;
+}
+
+// Get a random number, we have 4 generators to choose from so hopefully we
+// won't be blocking on this.
+uint64 FineLockPEQueue::GetRandom64() {
+  // Try each available slot.
+  for (int i = 0; i < 4; i++) {
+    if (pthread_mutex_trylock(&(randlocks_[i])) == 0) {
+      uint64 result = GetRandom64FromSlot(i);
+      pthread_mutex_unlock(&(randlocks_[i]));
+      return result;
+    }
+  }
+  // Forget it, just wait.
+  int i = 0;
+  if (pthread_mutex_lock(&(randlocks_[i])) == 0) {
+    uint64 result = GetRandom64FromSlot(i);
+    pthread_mutex_unlock(&(randlocks_[i]));
+    return result;
+  }
+
+  logprintf(0, "Process Error: Could not acquire random lock.\n");
+  sat_assert(0);
+  return 0;
+}
+
+
+// Helper function to get a random page entry with given predicate,
+// ie, page_is_valid() or page_is_empty() as defined in finelock_queue.h.
+//
+// Setting tag to a value other than kDontCareTag (-1)
+// indicates that we need a tag match, otherwise any tag will do.
+//
+// Returns true on success, false on failure.
+bool FineLockPEQueue::GetRandomWithPredicateTag(struct page_entry *pe,
+                      bool (*pred_func)(struct page_entry*),
+                      int32 tag) {
+  if (!pe || !q_size_)
+    return false;
+
+  // Randomly index into page entry array.
+  uint64 first_try = GetRandom64() % q_size_;
+  uint64 next_try = 1;
+
+  // Traverse through array until finding a page meeting given predicate.
+  for (uint64 i = 0; i < q_size_; i++) {
+    uint64 index = (next_try + first_try) % q_size_;
+    // Go through the loop linear conguentially. We are offsetting by
+    // 'first_try' so this path will be a different sequence for every
+    // initioal value chosen.
+    next_try = (a_ * next_try + c_) % (modlength_);
+    while (next_try >= q_size_) {
+      // If we have chosen a modlength greater than the queue size,
+      // discard out of bounds results.
+      next_try = (a_ * next_try + c_) % (modlength_);
+    }
+
+    // If page does not meet predicate, don't trylock (expensive).
+    if (!(pred_func)(&pages_[index]))
+      continue;
+
+    // If page does not meet tag predicate, don't trylock (expensive).
+    if ((tag != kDontCareTag) && !(pages_[index].tag & tag))
+      continue;
+
+    if (pthread_mutex_trylock(&(pagelocks_[index])) == 0) {
+      // If page property (valid/empty) changes before successfully locking,
+      // release page and move on.
+      if (!(pred_func)(&pages_[index])) {
+        pthread_mutex_unlock(&(pagelocks_[index]));
+        continue;
+      } else {
+        // A page entry with given predicate is locked, returns success.
+        *pe = pages_[index];
+
+        // Add metrics as necessary.
+        if (pred_func == page_is_valid) {
+          // Measure time to fetch valid page.
+          if (queue_metric_ == kTries)
+            pe->touch = i;
+          // Measure number of times each page is read.
+          if (queue_metric_ == kTouch)
+            pe->touch++;
+        }
+
+        return true;
+      }
+    }
+  }
+
+  return false;
+}
+
+// Without tag hint.
+bool FineLockPEQueue::GetRandomWithPredicate(struct page_entry *pe,
+                      bool (*pred_func)(struct page_entry*)) {
+  return GetRandomWithPredicateTag(pe, pred_func, kDontCareTag);
+}
+
+
+// GetValid() randomly finds a valid page, locks it and returns page entry by
+// pointer.
+//
+// Returns true on success, false on failure.
+bool FineLockPEQueue::GetValid(struct page_entry *pe) {
+  return GetRandomWithPredicate(pe, page_is_valid);
+}
+
+bool FineLockPEQueue::GetValid(struct page_entry *pe, int32 mask) {
+  return GetRandomWithPredicateTag(pe, page_is_valid, mask);
+}
+
+// GetEmpty() randomly finds an empty page, locks it and returns page entry by
+// pointer.
+//
+// Returns true on success, false on failure.
+bool FineLockPEQueue::GetEmpty(struct page_entry *pe, int32 mask) {
+  return GetRandomWithPredicateTag(pe, page_is_empty, mask);
+}
+bool FineLockPEQueue::GetEmpty(struct page_entry *pe) {
+  return GetRandomWithPredicate(pe, page_is_empty);
+}
+
+// PutEmpty puts an empty page back into the queue, making it available by
+// releasing the per-page-entry lock.
+//
+// Returns true on success, false on failure.
+bool FineLockPEQueue::PutEmpty(struct page_entry *pe) {
+  if (!pe || !q_size_)
+    return false;
+
+  int64 index = pe->offset / page_size_;
+  if (!valid_index(index))
+    return false;
+
+  pages_[index] = *pe;
+  // Enforce that page entry is indeed empty.
+  pages_[index].pattern = 0;
+  return (pthread_mutex_unlock(&(pagelocks_[index])) == 0);
+}
+
+// PutValid puts a valid page back into the queue, making it available by
+// releasing the per-page-entry lock.
+//
+// Returns true on success, false on failure.
+bool FineLockPEQueue::PutValid(struct page_entry *pe) {
+  if (!pe || !page_is_valid(pe) || !q_size_)
+    return false;
+
+  int64 index = pe->offset / page_size_;
+  if (!valid_index(index))
+    return false;
+
+  pages_[index] = *pe;
+  return (pthread_mutex_unlock(&(pagelocks_[index])) == 0);
+}
diff --git a/src/finelock_queue.h b/src/finelock_queue.h
new file mode 100644
index 0000000..2de5a46
--- /dev/null
+++ b/src/finelock_queue.h
@@ -0,0 +1,118 @@
+// Copyright 2007 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This page entry queue implementation with fine grain locks aim to ease
+// lock contention over previous queue implementation (with one lock protecting
+// the entire queue).
+
+#ifndef STRESSAPPTEST_FINELOCK_QUEUE_H_
+#define STRESSAPPTEST_FINELOCK_QUEUE_H_
+
+#include <string>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "sattypes.h"
+#include "pattern.h"
+#include "queue.h"     // Using page_entry struct.
+#include "os.h"
+
+// This is a threadsafe randomized queue of pages with per-page entry lock
+// for worker threads to use.
+class FineLockPEQueue {
+ public:
+  FineLockPEQueue(uint64 queuesize, int64 pagesize);
+  ~FineLockPEQueue();
+
+  // Put and get functions for page entries.
+  bool GetEmpty(struct page_entry *pe);
+  bool GetValid(struct page_entry *pe);
+  bool PutEmpty(struct page_entry *pe);
+  bool PutValid(struct page_entry *pe);
+
+  // Put and get functions for page entries, selecting on tags.
+  bool GetEmpty(struct page_entry *pe, int32 tag);
+  bool GetValid(struct page_entry *pe, int32 tag);
+
+  bool QueueAnalysis();
+  bool GetPageFromPhysical(uint64 paddr, struct page_entry *pe);
+  void set_os(OsLayer *os);
+  OsLayer::ErrCallback get_err_log_callback();
+  bool ErrorLogCallback(uint64 paddr, string *buf);
+
+ private:
+  // Not that much blocking random number generator.
+  uint64 GetRandom64();
+  uint64 GetRandom64FromSlot(int slot);
+
+  // Helper function to check index range, returns true if index is valid.
+  bool valid_index(int64 index) {
+    return index >= 0 && static_cast<uint64>(index) < q_size_;
+  }
+
+  // Returns true if page entry is valid, false otherwise.
+  static bool page_is_valid(struct page_entry *pe) {
+    return pe->pattern != NULL;
+  }
+  // Returns true if page entry is empty, false otherwise.
+  static bool page_is_empty(struct page_entry *pe) {
+    return pe->pattern == NULL;
+  }
+
+  // Helper function to get a random page entry with given predicate,
+  // ie, page_is_valid() or page_is_empty() as defined above.
+  bool GetRandomWithPredicate(struct page_entry *pe,
+                              bool (*pred_func)(struct page_entry*));
+
+  // Helper function to get a random page entry with given predicate,
+  // ie, page_is_valid() or page_is_empty() as defined above.
+  bool GetRandomWithPredicateTag(struct page_entry *pe,
+                                 bool (*pred_func)(struct page_entry*),
+                                 int32 tag);
+
+  // Used to make a linear congruential path through the queue.
+  int64 getA(int64 m);
+  int64 getC(int64 m);
+
+  pthread_mutex_t *pagelocks_;  // Per-page-entry locks.
+  struct page_entry *pages_;     // Where page entries are held.
+  uint64 q_size_;                // Size of the queue.
+  int64 page_size_;              // For calculating array index from offset.
+
+  enum {
+    kTries = 1,     // Measure the number of attempts in the queue
+                    // before getting a matching page.
+    kTouch = 2 }    // Measure the number of touches on each page.
+    queue_metric_;  // What to measure in the 'tries' field.
+
+  // Progress pseudorandomly through the queue. It's required that we can find
+  // every value in the list, but progressing through the same order each time
+  // causes bunching of pages, leading to long seach times for the correct
+  // type of pages.
+  int64 a_;                      // 'a' multiplicative value for progressing
+                                 // linear congruentially through the list.
+  int64 c_;                      // 'c' additive value for prgressing randomly
+                                 // through the list.
+  int64 modlength_;              // 'm' mod value for linear congruential
+                                 // generator. Used when q_size_ doesn't
+                                 // generate a good progression through the
+                                 // list.
+
+  uint64 rand_seed_[4];          // Random number state for 4 generators.
+  pthread_mutex_t randlocks_[4];  // Per-random-generator locks.
+
+  DISALLOW_COPY_AND_ASSIGN(FineLockPEQueue);
+};
+
+#endif  // STRESSAPPTEST_FINELOCK_QUEUE_H_
diff --git a/src/logger.cc b/src/logger.cc
new file mode 100644
index 0000000..e4ecb03
--- /dev/null
+++ b/src/logger.cc
@@ -0,0 +1,152 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "logger.h"
+
+#include <pthread.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <string>
+#include <vector>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "sattypes.h"
+
+
+Logger *Logger::GlobalLogger() {
+  static Logger logger;
+  return &logger;
+}
+
+void Logger::VLogF(int priority, const char *format, va_list args) {
+  if (priority > verbosity_) {
+    return;
+  }
+  char buffer[4096];
+  int length = vsnprintf(buffer, sizeof buffer, format, args);
+  if (static_cast<size_t>(length) >= sizeof buffer) {
+    length = sizeof buffer;
+    buffer[sizeof buffer - 1] = '\n';
+  }
+  QueueLogLine(new string(buffer, length));
+}
+
+void Logger::StartThread() {
+  LOGGER_ASSERT(!thread_running_);
+  thread_running_ = true;
+  LOGGER_ASSERT(0 == pthread_create(&thread_, NULL, &StartRoutine, this));
+}
+
+void Logger::StopThread() {
+  LOGGER_ASSERT(thread_running_);
+  thread_running_ = false;
+  LOGGER_ASSERT(0 == pthread_mutex_lock(&queued_lines_mutex_));
+  bool need_cond_signal = queued_lines_.empty();
+  queued_lines_.push_back(NULL);
+  LOGGER_ASSERT(0 == pthread_mutex_unlock(&queued_lines_mutex_));
+  if (need_cond_signal) {
+    LOGGER_ASSERT(0 == pthread_cond_signal(&queued_lines_cond_));
+  }
+  LOGGER_ASSERT(0 == pthread_join(thread_, NULL));
+}
+
+Logger::Logger() : verbosity_(20), log_fd_(-1), thread_running_(false) {
+  LOGGER_ASSERT(0 == pthread_mutex_init(&queued_lines_mutex_, NULL));
+  LOGGER_ASSERT(0 == pthread_cond_init(&queued_lines_cond_, NULL));
+  LOGGER_ASSERT(0 == pthread_cond_init(&full_queue_cond_, NULL));
+}
+
+Logger::~Logger() {
+  LOGGER_ASSERT(0 == pthread_mutex_destroy(&queued_lines_mutex_));
+  LOGGER_ASSERT(0 == pthread_cond_destroy(&queued_lines_cond_));
+  LOGGER_ASSERT(0 == pthread_cond_destroy(&full_queue_cond_));
+}
+
+void Logger::QueueLogLine(string *line) {
+  LOGGER_ASSERT(line != NULL);
+  LOGGER_ASSERT(0 == pthread_mutex_lock(&queued_lines_mutex_));
+  if (thread_running_) {
+    if (queued_lines_.size() >= kMaxQueueSize) {
+      LOGGER_ASSERT(0 == pthread_cond_wait(&full_queue_cond_,
+                                           &queued_lines_mutex_));
+    }
+    if (queued_lines_.empty()) {
+      LOGGER_ASSERT(0 == pthread_cond_signal(&queued_lines_cond_));
+    }
+    queued_lines_.push_back(line);
+  } else {
+    WriteAndDeleteLogLine(line);
+  }
+  LOGGER_ASSERT(0 == pthread_mutex_unlock(&queued_lines_mutex_));
+}
+
+namespace {
+void WriteToFile(const string& line, int fd) {
+  LOGGER_ASSERT(write(fd, line.data(), line.size()) ==
+                static_cast<ssize_t>(line.size()));
+}
+}
+
+void Logger::WriteAndDeleteLogLine(string *line) {
+  LOGGER_ASSERT(line != NULL);
+  if (log_fd_ >= 0) {
+    WriteToFile(*line, log_fd_);
+  }
+  WriteToFile(*line, 1);
+  delete line;
+}
+
+void *Logger::StartRoutine(void *ptr) {
+  Logger *self = static_cast<Logger*>(ptr);
+  self->ThreadMain();
+  return NULL;
+}
+
+void Logger::ThreadMain() {
+  vector<string*> local_queue;
+  LOGGER_ASSERT(0 == pthread_mutex_lock(&queued_lines_mutex_));
+
+  for (;;) {
+    if (queued_lines_.empty()) {
+      LOGGER_ASSERT(0 == pthread_cond_wait(&queued_lines_cond_,
+                                           &queued_lines_mutex_));
+      continue;
+    }
+
+    // We move the log lines into a local queue so we can release the lock
+    // while writing them to disk, preventing other threads from blocking on
+    // our writes.
+    local_queue.swap(queued_lines_);
+    if (local_queue.size() >= kMaxQueueSize) {
+      LOGGER_ASSERT(0 == pthread_cond_broadcast(&full_queue_cond_));
+    }
+
+    // Unlock while we process our local queue.
+    LOGGER_ASSERT(0 == pthread_mutex_unlock(&queued_lines_mutex_));
+    for (vector<string*>::const_iterator it = local_queue.begin();
+         it != local_queue.end(); ++it) {
+      if (*it == NULL) {
+        // NULL is guaranteed to be at the end.
+        return;
+      }
+      WriteAndDeleteLogLine(*it);
+    }
+    local_queue.clear();
+    // We must hold the lock at the start of each iteration of this for loop.
+    LOGGER_ASSERT(0 == pthread_mutex_lock(&queued_lines_mutex_));
+  }
+}
diff --git a/src/logger.h b/src/logger.h
new file mode 100644
index 0000000..1d70107
--- /dev/null
+++ b/src/logger.h
@@ -0,0 +1,142 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef STRESSAPPTEST_LOGGER_H_
+#define STRESSAPPTEST_LOGGER_H_
+
+#include <pthread.h>
+#include <stdarg.h>
+
+#include <string>
+#include <vector>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "sattypes.h"
+
+// Attempts to log additional lines will block when the queue reaches this size.
+// Due to how the logging thread works, up to twice this many log lines may be
+// outstanding at any point.
+static const size_t kMaxQueueSize = 250;
+
+
+// This is only for use by the Logger class, do not use it elsewhere!
+//
+// All Logger assertions should use this macro instead of sat_assert().
+//
+// This is like sat_assert() from sattypes.h, but whereas sat_assert() tries to
+// log the assertion after printing it to stderr, this only prints it to stderr.
+// Logging from within the wrong part of the logger would trigger a deadlock,
+// and even in places where it wouldn't there's a very good chance that the
+// logger is in no condition to handle new log lines.
+#define LOGGER_ASSERT(x) \
+{\
+  if (!(x)) {\
+    fprintf(stderr, "Assertion failed at %s:%d\n", __FILE__, __LINE__);\
+    exit(1);\
+  }\
+}
+
+
+// This class handles logging in SAT.  It is a singleton accessed via
+// GlobalLogger().
+//
+// By default log lines are written in the calling thread.  Call StartThread()
+// to launch a dedicated thread for the writes.
+class Logger {
+ public:
+  // Returns a pointer to the single global Logger instance.  Will not return
+  // NULL.
+  static Logger *GlobalLogger();
+
+  // Lines with a priority numerically greater than this will not be logged.
+  // May not be called while multiple threads are running.
+  void SetVerbosity(int verbosity) {
+    verbosity_ = verbosity;
+  }
+
+  // Sets a file to log to, in addition to stdout.  May not be called while
+  // multiple threads are running.
+  //
+  // Args:
+  //   log_fd: The file descriptor to write to.  Will not be closed by this
+  //           object.
+  void SetLogFd(int log_fd) {
+    LOGGER_ASSERT(log_fd >= 0);
+    log_fd_ = log_fd;
+  }
+
+  // Set output to be written to stdout only.  This is the default mode.  May
+  // not be called while multiple threads are running.
+  void SetStdoutOnly() {
+    log_fd_ = -1;
+  }
+
+  // Logs a line, with a vprintf(3)-like interface.  This will block on writing
+  // the line to stdout/disk iff the dedicated logging thread is not running.
+  // This will block on adding the line to the queue if doing so would exceed
+  // kMaxQueueSize.
+  //
+  // Args:
+  //   priority: If this is numerically greater than the verbosity, the line
+  //             will not be logged.
+  //   format: see vprintf(3)
+  //   args: see vprintf(3)
+  void VLogF(int priority, const char *format, va_list args);
+
+  // Starts the dedicated logging thread.  May not be called while multiple
+  // threads are already running.
+  void StartThread();
+
+  // Stops the dedicated logging thread.  May only be called when the logging
+  // thread is the only other thread running.  Any queued lines will be logged
+  // before this returns.  Waits for the thread to finish before returning.
+  void StopThread();
+
+ private:
+  Logger();
+
+  ~Logger();
+
+  // Args:
+  //   line: Must be non-NULL.  This function takes ownership of it.
+  void QueueLogLine(string *line);
+
+  // Args:
+  //   line: Must be non-NULL.  This function takes ownership of it.
+  void WriteAndDeleteLogLine(string *line);
+
+  // Callback for pthread_create(3).
+  static void *StartRoutine(void *ptr);
+
+  // Processes the log queue.
+  void ThreadMain();
+
+  pthread_t thread_;
+  int verbosity_;
+  int log_fd_;
+  bool thread_running_;
+  vector<string*> queued_lines_;
+  // This doubles as a mutex for log_fd_ when the logging thread is not running.
+  pthread_mutex_t queued_lines_mutex_;
+  // Lets the logging thread know that the queue is no longer empty.
+  pthread_cond_t queued_lines_cond_;
+  // Lets the threads blocked on the queue having reached kMaxQueueSize know
+  // that the queue has been emptied.
+  pthread_cond_t full_queue_cond_;
+
+  DISALLOW_COPY_AND_ASSIGN(Logger);
+};
+
+#endif  // STRESSAPPTEST_LOGGER_H_
diff --git a/src/main.cc b/src/main.cc
new file mode 100644
index 0000000..04cd536
--- /dev/null
+++ b/src/main.cc
@@ -0,0 +1,56 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// sat.cc : a stress test for stressful testing
+
+#include "sattypes.h"
+#include "sat.h"
+
+int main(int argc, char **argv) {
+  Sat *sat = SatFactory();
+  if (sat == NULL) {
+    logprintf(0, "Process Error: failed to allocate Sat object\n");
+    return 255;
+  }
+
+  if (!sat->ParseArgs(argc, argv)) {
+    logprintf(0, "Process Error: Sat::ParseArgs() failed\n");
+    sat->bad_status();
+  } else if (!sat->Initialize()) {
+    logprintf(0, "Process Error: Sat::Initialize() failed\n");
+    sat->bad_status();
+  } else if (!sat->Run()) {
+    logprintf(0, "Process Error: Sat::Run() failed\n");
+    sat->bad_status();
+  }
+  sat->PrintResults();
+  if (!sat->Cleanup()) {
+    logprintf(0, "Process Error: Sat::Cleanup() failed\n");
+    sat->bad_status();
+  }
+
+  int retval;
+  if (sat->status() != 0) {
+    logprintf(0, "Process Error: Fatal issue encountered. See above logs for "
+              "details.\n");
+    retval = 1;
+  } else if (sat->errors() != 0) {
+    retval = 1;
+  } else {
+    retval = 0;
+  }
+
+  delete sat;
+  return retval;
+}
diff --git a/src/os.cc b/src/os.cc
new file mode 100644
index 0000000..1340d6b
--- /dev/null
+++ b/src/os.cc
@@ -0,0 +1,849 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+// Author: nsanders, menderico
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// os.cc : os and machine specific implementation
+// This file includes an abstracted interface
+// for linux-distro specific and HW specific
+// interfaces.
+
+#include "os.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/types.h>
+#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <unistd.h>
+
+#ifndef SHM_HUGETLB
+#define SHM_HUGETLB      04000  // remove when glibc defines it
+#endif
+
+#include <string>
+#include <list>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "sattypes.h"
+#include "error_diag.h"
+
+// OsLayer initialization.
+OsLayer::OsLayer() {
+  testmem_ = 0;
+  testmemsize_ = 0;
+  totalmemsize_ = 0;
+  min_hugepages_bytes_ = 0;
+  normal_mem_ = true;
+  use_hugepages_ = false;
+  use_posix_shm_ = false;
+  dynamic_mapped_shmem_ = false;
+  shmid_ = 0;
+
+  time_initialized_ = 0;
+
+  regionsize_ = 0;
+  regioncount_ = 1;
+  num_cpus_ = 0;
+  num_nodes_ = 0;
+  num_cpus_per_node_ = 0;
+  error_diagnoser_ = 0;
+  err_log_callback_ = 0;
+  error_injection_ = false;
+
+  void *pvoid = 0;
+  address_mode_ = sizeof(pvoid) * 8;
+
+  has_clflush_ = false;
+  has_sse2_ = false;
+}
+
+// OsLayer cleanup.
+OsLayer::~OsLayer() {
+  if (error_diagnoser_)
+    delete error_diagnoser_;
+}
+
+// OsLayer initialization.
+bool OsLayer::Initialize() {
+  time_initialized_ = time(NULL);
+  // Detect asm support.
+  GetFeatures();
+
+  if (num_cpus_ == 0) {
+    num_nodes_ = 1;
+    num_cpus_ = sysconf(_SC_NPROCESSORS_ONLN);
+    num_cpus_per_node_ = num_cpus_ / num_nodes_;
+  }
+  logprintf(5, "Log: %d nodes, %d cpus.\n", num_nodes_, num_cpus_);
+  sat_assert(CPU_SETSIZE >= num_cpus_);
+  cpu_sets_.resize(num_nodes_);
+  cpu_sets_valid_.resize(num_nodes_);
+  // Create error diagnoser.
+  error_diagnoser_ = new ErrorDiag();
+  if (!error_diagnoser_->set_os(this))
+    return false;
+  return true;
+}
+
+// Machine type detected. Can we implement all these functions correctly?
+bool OsLayer::IsSupported() {
+  if (kOpenSource) {
+    // There are no explicitly supported systems in open source version.
+    return true;
+  }
+
+  // This is the default empty implementation.
+  // SAT won't report full error information.
+  return false;
+}
+
+int OsLayer::AddressMode() {
+  // Detect 32/64 bit binary.
+  void *pvoid = 0;
+  return sizeof(pvoid) * 8;
+}
+
+// Translates user virtual to physical address.
+uint64 OsLayer::VirtualToPhysical(void *vaddr) {
+  // Needs platform specific implementation.
+  return 0;
+}
+
+// Returns the HD device that contains this file.
+string OsLayer::FindFileDevice(string filename) {
+  return "hdUnknown";
+}
+
+// Returns a list of locations corresponding to HD devices.
+list<string> OsLayer::FindFileDevices() {
+  // No autodetection on unknown systems.
+  list<string> locations;
+  return locations;
+}
+
+
+// Get HW core features from cpuid instruction.
+void OsLayer::GetFeatures() {
+#if defined(STRESSAPPTEST_CPU_X86_64) || defined(STRESSAPPTEST_CPU_I686)
+  // CPUID features documented at:
+  // http://www.sandpile.org/ia32/cpuid.htm
+  int ax, bx, cx, dx;
+  __asm__ __volatile__ (
+      "cpuid": "=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) : "a" (1));
+  has_clflush_ = (dx >> 19) & 1;
+  has_sse2_ = (dx >> 26) & 1;
+
+  logprintf(9, "Log: has clflush: %s, has sse2: %s\n",
+            has_clflush_ ? "true" : "false",
+            has_sse2_ ? "true" : "false");
+#elif defined(STRESSAPPTEST_CPU_PPC)
+  // All PPC implementations have cache flush instructions.
+  has_clflush_ = true;
+#elif defined(STRESSAPPTEST_CPU_ARMV7A)
+#warning "Unsupported CPU type ARMV7A: unable to determine feature set."
+#else
+#warning "Unsupported CPU type: unable to determine feature set."
+#endif
+}
+
+
+// We need to flush the cacheline here.
+void OsLayer::Flush(void *vaddr) {
+  // Use the generic flush. This function is just so we can override
+  // this if we are so inclined.
+  if (has_clflush_)
+    FastFlush(vaddr);
+}
+
+
+// Run C or ASM copy as appropriate..
+bool OsLayer::AdlerMemcpyWarm(uint64 *dstmem, uint64 *srcmem,
+                              unsigned int size_in_bytes,
+                              AdlerChecksum *checksum) {
+  if (has_sse2_) {
+    return AdlerMemcpyAsm(dstmem, srcmem, size_in_bytes, checksum);
+  } else {
+    return AdlerMemcpyWarmC(dstmem, srcmem, size_in_bytes, checksum);
+  }
+}
+
+
+// Translate user virtual to physical address.
+int OsLayer::FindDimm(uint64 addr, char *buf, int len) {
+  char tmpbuf[256];
+  snprintf(tmpbuf, sizeof(tmpbuf), "DIMM Unknown");
+  snprintf(buf, len, "%s", tmpbuf);
+  return 0;
+}
+
+
+// Classifies addresses according to "regions"
+// This isn't really implemented meaningfully here..
+int32 OsLayer::FindRegion(uint64 addr) {
+  static bool warned = false;
+
+  if (regionsize_ == 0) {
+    regionsize_ = totalmemsize_ / 8;
+    if (regionsize_ < 512 * kMegabyte)
+      regionsize_ = 512 * kMegabyte;
+    regioncount_ = totalmemsize_ / regionsize_;
+    if (regioncount_ < 1) regioncount_ = 1;
+  }
+
+  int32 region_num = addr / regionsize_;
+  if (region_num >= regioncount_) {
+    if (!warned) {
+        logprintf(0, "Log: region number %d exceeds region count %d\n",
+                  region_num, regioncount_);
+        warned = true;
+    }
+    region_num = region_num % regioncount_;
+  }
+  return region_num;
+}
+
+// Report which cores are associated with a given region.
+cpu_set_t *OsLayer::FindCoreMask(int32 region) {
+  sat_assert(region >= 0);
+  region %= num_nodes_;
+  if (!cpu_sets_valid_[region]) {
+    CPU_ZERO(&cpu_sets_[region]);
+    for (int i = 0; i < num_cpus_per_node_; ++i) {
+      CPU_SET(i + region * num_cpus_per_node_, &cpu_sets_[region]);
+    }
+    cpu_sets_valid_[region] = true;
+    logprintf(5, "Log: Region %d mask 0x%s\n",
+                 region, FindCoreMaskFormat(region).c_str());
+  }
+  return &cpu_sets_[region];
+}
+
+// Return cores associated with a given region in hex string.
+string OsLayer::FindCoreMaskFormat(int32 region) {
+  cpu_set_t* mask = FindCoreMask(region);
+  string format = cpuset_format(mask);
+  if (format.size() < 8)
+    format = string(8 - format.size(), '0') + format;
+  return format;
+}
+
+// Report an error in an easily parseable way.
+bool OsLayer::ErrorReport(const char *part, const char *symptom, int count) {
+  time_t now = time(NULL);
+  int ttf = now - time_initialized_;
+  logprintf(0, "Report Error: %s : %s : %d : %ds\n", symptom, part, count, ttf);
+  return true;
+}
+
+// Read the number of hugepages out of the kernel interface in proc.
+int64 OsLayer::FindHugePages() {
+  char buf[65] = "0";
+
+  // This is a kernel interface to query the numebr of hugepages
+  // available in the system.
+  static const char *hugepages_info_file = "/proc/sys/vm/nr_hugepages";
+  int hpfile = open(hugepages_info_file, O_RDONLY);
+
+  ssize_t bytes_read = read(hpfile, buf, 64);
+  close(hpfile);
+
+  if (bytes_read <= 0) {
+    logprintf(12, "Log: /proc/sys/vm/nr_hugepages "
+                  "read did not provide data\n");
+    return 0;
+  }
+
+  if (bytes_read == 64) {
+    logprintf(0, "Process Error: /proc/sys/vm/nr_hugepages "
+                 "is surprisingly large\n");
+    return 0;
+  }
+
+  // Add a null termintation to be string safe.
+  buf[bytes_read] = '\0';
+  // Read the page count.
+  int64 pages = strtoull(buf, NULL, 10);  // NOLINT
+
+  return pages;
+}
+
+int64 OsLayer::FindFreeMemSize() {
+  int64 size = 0;
+  int64 minsize = 0;
+  if (totalmemsize_ > 0)
+    return totalmemsize_;
+
+  int64 pages = sysconf(_SC_PHYS_PAGES);
+  int64 avpages = sysconf(_SC_AVPHYS_PAGES);
+  int64 pagesize = sysconf(_SC_PAGESIZE);
+  int64 physsize = pages * pagesize;
+  int64 avphyssize = avpages * pagesize;
+
+  // Assume 2MB hugepages.
+  int64 hugepagesize = FindHugePages() * 2 * kMegabyte;
+
+  if ((pages == -1) || (pagesize == -1)) {
+    logprintf(0, "Process Error: sysconf could not determine memory size.\n");
+    return 0;
+  }
+
+  // We want to leave enough stuff for things to run.
+  // If the user specified a minimum amount of memory to expect, require that.
+  // Otherwise, if more than 2GB is present, leave 192M + 5% for other stuff.
+  // If less than 2GB is present use 85% of what's available.
+  // These are fairly arbitrary numbers that seem to work OK.
+  //
+  // TODO(nsanders): is there a more correct way to determine target
+  // memory size?
+  if (hugepagesize > 0 && min_hugepages_bytes_ > 0) {
+    minsize = min_hugepages_bytes_;
+  } else if (physsize < 2048LL * kMegabyte) {
+    minsize = ((pages * 85) / 100) * pagesize;
+  } else {
+    minsize = ((pages * 95) / 100) * pagesize - (192 * kMegabyte);
+  }
+
+  // Use hugepage sizing if available.
+  if (hugepagesize > 0) {
+    if (hugepagesize < minsize) {
+      logprintf(0, "Procedural Error: Not enough hugepages. "
+                   "%lldMB available < %lldMB required.\n",
+                hugepagesize / kMegabyte,
+                minsize / kMegabyte);
+      // Require the calculated minimum amount of memory.
+      size = minsize;
+    } else {
+      // Require that we get all hugepages.
+      size = hugepagesize;
+    }
+  } else {
+    // Require the calculated minimum amount of memory.
+    size = minsize;
+  }
+
+  logprintf(5, "Log: Total %lld MB. Free %lld MB. Hugepages %lld MB. "
+               "Targeting %lld MB (%lld%%)\n",
+            physsize / kMegabyte,
+            avphyssize / kMegabyte,
+            hugepagesize / kMegabyte,
+            size / kMegabyte,
+            size * 100 / physsize);
+
+  totalmemsize_ = size;
+  return size;
+}
+
+// Allocates all memory available.
+int64 OsLayer::AllocateAllMem() {
+  int64 length = FindFreeMemSize();
+  bool retval = AllocateTestMem(length, 0);
+  if (retval)
+    return length;
+  else
+    return 0;
+}
+
+// Allocate the target memory. This may be from malloc, hugepage pool
+// or other platform specific sources.
+bool OsLayer::AllocateTestMem(int64 length, uint64 paddr_base) {
+  // Try hugepages first.
+  void *buf = 0;
+
+  sat_assert(length >= 0);
+
+  if (paddr_base)
+    logprintf(0, "Process Error: non zero paddr_base %#llx is not supported,"
+              " ignore.\n", paddr_base);
+
+  // Determine optimal memory allocation path.
+  bool prefer_hugepages = false;
+  bool prefer_posix_shm = false;
+  bool prefer_dynamic_mapping = false;
+
+  // Are there enough hugepages?
+  int64 hugepagesize = FindHugePages() * 2 * kMegabyte;
+  // TODO(nsanders): Is there enough /dev/shm? Is there enough free memeory?
+  if ((length >= 1400LL * kMegabyte) && (address_mode_ == 32)) {
+    prefer_dynamic_mapping = true;
+    prefer_posix_shm = true;
+    logprintf(3, "Log: Prefer POSIX shared memory allocation.\n");
+    logprintf(3, "Log: You may need to run "
+                 "'sudo mount -o remount,size=100\% /dev/shm.'\n");
+  } else if (hugepagesize >= length) {
+    prefer_hugepages = true;
+    logprintf(3, "Log: Prefer using hugepace allocation.\n");
+  } else {
+    logprintf(3, "Log: Prefer plain malloc memory allocation.\n");
+  }
+
+  // Allocate hugepage mapped memory.
+  if (prefer_hugepages) {
+    do { // Allow break statement.
+      int shmid;
+      void *shmaddr;
+
+      if ((shmid = shmget(2, length,
+              SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W)) < 0) {
+        int err = errno;
+        string errtxt = ErrorString(err);
+        logprintf(3, "Log: failed to allocate shared hugepage "
+                      "object - err %d (%s)\n",
+                  err, errtxt.c_str());
+        logprintf(3, "Log: sysctl -w vm.nr_hugepages=XXX allows hugepages.\n");
+        break;
+      }
+
+      shmaddr = shmat(shmid, NULL, NULL);
+      if (shmaddr == reinterpret_cast<void*>(-1)) {
+        int err = errno;
+        string errtxt = ErrorString(err);
+        logprintf(0, "Log: failed to attach shared "
+                     "hugepage object - err %d (%s).\n",
+                  err, errtxt.c_str());
+        if (shmctl(shmid, IPC_RMID, NULL) < 0) {
+          int err = errno;
+          string errtxt = ErrorString(err);
+          logprintf(0, "Log: failed to remove shared "
+                       "hugepage object - err %d (%s).\n",
+                    err, errtxt.c_str());
+        }
+        break;
+      }
+      use_hugepages_ = true;
+      shmid_ = shmid;
+      buf = shmaddr;
+      logprintf(0, "Log: Using shared hugepage object 0x%x at %p.\n",
+                shmid, shmaddr);
+    } while (0);
+  }
+
+  if ((!use_hugepages_) && prefer_posix_shm) {
+    do {
+      int shm_object;
+      void *shmaddr = NULL;
+
+      shm_object = shm_open("/stressapptest", O_CREAT | O_RDWR, S_IRWXU);
+      if (shm_object < 0) {
+        int err = errno;
+        string errtxt = ErrorString(err);
+        logprintf(3, "Log: failed to allocate shared "
+                      "smallpage object - err %d (%s)\n",
+                  err, errtxt.c_str());
+        break;
+      }
+
+      if (0 > ftruncate(shm_object, length)) {
+        int err = errno;
+        string errtxt = ErrorString(err);
+        logprintf(3, "Log: failed to ftruncate shared "
+                      "smallpage object - err %d (%s)\n",
+                  err, errtxt.c_str());
+        break;
+      }
+
+      // 32 bit linux apps can only use ~1.4G of address space.
+      // Use dynamic mapping for allocations larger than that.
+      // Currently perf hit is ~10% for this.
+      if (prefer_dynamic_mapping) {
+        dynamic_mapped_shmem_ = true;
+      } else {
+        // Do a full mapping here otherwise.
+        shmaddr = mmap64(NULL, length, PROT_READ | PROT_WRITE,
+                         MAP_SHARED | MAP_NORESERVE | MAP_LOCKED | MAP_POPULATE,
+                         shm_object, NULL);
+        if (shmaddr == reinterpret_cast<void*>(-1)) {
+          int err = errno;
+          string errtxt = ErrorString(err);
+          logprintf(0, "Log: failed to map shared "
+                       "smallpage object - err %d (%s).\n",
+                    err, errtxt.c_str());
+          break;
+        }
+      }
+
+      use_posix_shm_ = true;
+      shmid_ = shm_object;
+      buf = shmaddr;
+      char location_message[256] = "";
+      if (dynamic_mapped_shmem_) {
+        sprintf(location_message, "mapped as needed");
+      } else {
+        sprintf(location_message, "at %p", shmaddr);
+      }
+      logprintf(0, "Log: Using posix shared memory object 0x%x %s.\n",
+                shm_object, location_message);
+    } while (0);
+    shm_unlink("/stressapptest");
+  }
+
+  if (!use_hugepages_ && !use_posix_shm_) {
+    // Use memalign to ensure that blocks are aligned enough for disk direct IO.
+    buf = static_cast<char*>(memalign(4096, length));
+    if (buf) {
+      logprintf(0, "Log: Using memaligned allocation at %p.\n", buf);
+    } else {
+      logprintf(0, "Process Error: memalign returned 0\n");
+      if ((length >= 1499LL * kMegabyte) && (address_mode_ == 32)) {
+        logprintf(0, "Log: You are trying to allocate > 1.4G on a 32 "
+                     "bit process. Please setup shared memory.\n");
+      }
+    }
+  }
+
+  testmem_ = buf;
+  if (buf || dynamic_mapped_shmem_) {
+    testmemsize_ = length;
+  } else {
+    testmemsize_ = 0;
+  }
+
+  return (buf != 0) || dynamic_mapped_shmem_;
+}
+
+// Free the test memory.
+void OsLayer::FreeTestMem() {
+  if (testmem_) {
+    if (use_hugepages_) {
+      shmdt(testmem_);
+      shmctl(shmid_, IPC_RMID, NULL);
+    } else if (use_posix_shm_) {
+      if (!dynamic_mapped_shmem_) {
+        munmap(testmem_, testmemsize_);
+      }
+      close(shmid_);
+    } else {
+      free(testmem_);
+    }
+    testmem_ = 0;
+    testmemsize_ = 0;
+  }
+}
+
+
+// Prepare the target memory. It may requre mapping in, or this may be a noop.
+void *OsLayer::PrepareTestMem(uint64 offset, uint64 length) {
+  sat_assert((offset + length) <= testmemsize_);
+  if (dynamic_mapped_shmem_) {
+    // TODO(nsanders): Check if we can support MAP_NONBLOCK,
+    // and evaluate performance hit from not using it.
+    void * mapping = mmap64(NULL, length, PROT_READ | PROT_WRITE,
+                     MAP_SHARED | MAP_NORESERVE | MAP_LOCKED | MAP_POPULATE,
+                     shmid_, offset);
+    if (mapping == MAP_FAILED) {
+      string errtxt = ErrorString(errno);
+      logprintf(0, "Process Error: PrepareTestMem mmap64(%llx, %llx) failed. "
+                   "error: %s.\n",
+                offset, length, errtxt.c_str());
+      sat_assert(0);
+    }
+    return mapping;
+  }
+
+  return reinterpret_cast<void*>(reinterpret_cast<char*>(testmem_) + offset);
+}
+
+// Release the test memory resources, if any.
+void OsLayer::ReleaseTestMem(void *addr, uint64 offset, uint64 length) {
+  if (dynamic_mapped_shmem_) {
+    int retval = munmap(addr, length);
+    if (retval == -1) {
+      string errtxt = ErrorString(errno);
+      logprintf(0, "Process Error: ReleaseTestMem munmap(%p, %llx) failed. "
+                   "error: %s.\n",
+                addr, length, errtxt.c_str());
+      sat_assert(0);
+    }
+  }
+}
+
+// No error polling on unknown systems.
+int OsLayer::ErrorPoll() {
+  return 0;
+}
+
+// Generally, poll for errors once per second.
+void OsLayer::ErrorWait() {
+  sat_sleep(1);
+  return;
+}
+
+// Open a PCI bus-dev-func as a file and return its file descriptor.
+// Error is indicated by return value less than zero.
+int OsLayer::PciOpen(int bus, int device, int function) {
+  char dev_file[256];
+
+  snprintf(dev_file, sizeof(dev_file), "/proc/bus/pci/%02x/%02x.%x",
+           bus, device, function);
+
+  int fd = open(dev_file, O_RDWR);
+  if (fd == -1) {
+    logprintf(0, "Process Error: Unable to open PCI bus %d, device %d, "
+                 "function %d (errno %d).\n",
+              bus, device, function, errno);
+    return -1;
+  }
+
+  return fd;
+}
+
+
+// Read and write functions to access PCI config.
+uint32 OsLayer::PciRead(int fd, uint32 offset, int width) {
+  // Strict aliasing rules lawyers will cause data corruption
+  // on cast pointers in some gccs.
+  union {
+    uint32 l32;
+    uint16 l16;
+    uint8 l8;
+  } datacast;
+  datacast.l32 = 0;
+  uint32 size = width / 8;
+
+  sat_assert((width == 32) || (width == 16) || (width == 8));
+  sat_assert(offset <= (256 - size));
+
+  if (lseek(fd, offset, SEEK_SET) < 0) {
+    logprintf(0, "Process Error: Can't seek %x\n", offset);
+    return 0;
+  }
+  if (read(fd, &datacast, size) != static_cast<ssize_t>(size)) {
+    logprintf(0, "Process Error: Can't read %x\n", offset);
+    return 0;
+  }
+
+  // Extract the data.
+  switch (width) {
+    case 8:
+      sat_assert(&(datacast.l8) == reinterpret_cast<uint8*>(&datacast));
+      return datacast.l8;
+    case 16:
+      sat_assert(&(datacast.l16) == reinterpret_cast<uint16*>(&datacast));
+      return datacast.l16;
+    case 32:
+      return datacast.l32;
+  }
+  return 0;
+}
+
+void OsLayer::PciWrite(int fd, uint32 offset, uint32 value, int width) {
+  // Strict aliasing rules lawyers will cause data corruption
+  // on cast pointers in some gccs.
+  union {
+    uint32 l32;
+    uint16 l16;
+    uint8 l8;
+  } datacast;
+  datacast.l32 = 0;
+  uint32 size = width / 8;
+
+  sat_assert((width == 32) || (width == 16) || (width == 8));
+  sat_assert(offset <= (256 - size));
+
+  // Cram the data into the right alignment.
+  switch (width) {
+    case 8:
+      sat_assert(&(datacast.l8) == reinterpret_cast<uint8*>(&datacast));
+      datacast.l8 = value;
+    case 16:
+      sat_assert(&(datacast.l16) == reinterpret_cast<uint16*>(&datacast));
+      datacast.l16 = value;
+    case 32:
+      datacast.l32 = value;
+  }
+
+  if (lseek(fd, offset, SEEK_SET) < 0) {
+    logprintf(0, "Process Error: Can't seek %x\n", offset);
+    return;
+  }
+  if (write(fd, &datacast, size) != static_cast<ssize_t>(size)) {
+    logprintf(0, "Process Error: Can't write %x to %x\n", datacast.l32, offset);
+    return;
+  }
+
+  return;
+}
+
+
+
+// Open dev msr.
+int OsLayer::OpenMSR(uint32 core, uint32 address) {
+  char buf[256];
+  snprintf(buf, sizeof(buf), "/dev/cpu/%d/msr", core);
+  int fd = open(buf, O_RDWR);
+  if (fd < 0)
+    return fd;
+
+  uint32 pos = lseek(fd, address, SEEK_SET);
+  if (pos != address) {
+    close(fd);
+    logprintf(5, "Log: can't seek to msr %x, cpu %d\n", address, core);
+    return -1;
+  }
+
+  return fd;
+}
+
+bool OsLayer::ReadMSR(uint32 core, uint32 address, uint64 *data) {
+  int fd = OpenMSR(core, address);
+  if (fd < 0)
+    return false;
+
+  // Read from the msr.
+  bool res = (sizeof(*data) == read(fd, data, sizeof(*data)));
+
+  if (!res)
+    logprintf(5, "Log: Failed to read msr %x core %d\n", address, core);
+
+  close(fd);
+
+  return res;
+}
+
+bool OsLayer::WriteMSR(uint32 core, uint32 address, uint64 *data) {
+  int fd = OpenMSR(core, address);
+  if (fd < 0)
+    return false;
+
+  // Write to the msr
+  bool res = (sizeof(*data) == write(fd, data, sizeof(*data)));
+
+  if (!res)
+    logprintf(5, "Log: Failed to write msr %x core %d\n", address, core);
+
+  close(fd);
+
+  return res;
+}
+
+// Extract bits [n+len-1, n] from a 32 bit word.
+// so GetBitField(0x0f00, 8, 4) == 0xf.
+uint32 OsLayer::GetBitField(uint32 val, uint32 n, uint32 len) {
+  return (val >> n) & ((1<<len) - 1);
+}
+
+// Generic CPU stress workload that would work on any CPU/Platform.
+// Float-point array moving average calculation.
+bool OsLayer::CpuStressWorkload() {
+  double float_arr[100];
+  double sum = 0;
+  unsigned int seed = 12345;
+
+  // Initialize array with random numbers.
+  for (int i = 0; i < 100; i++) {
+    float_arr[i] = rand_r(&seed);
+    if (rand_r(&seed) % 2)
+      float_arr[i] *= -1.0;
+  }
+
+  // Calculate moving average.
+  for (int i = 0; i < 100000000; i++) {
+    float_arr[i % 100] =
+      (float_arr[i % 100] + float_arr[(i + 1) % 100] +
+       float_arr[(i + 99) % 100]) / 3;
+    sum += float_arr[i % 100];
+  }
+
+  // Artificial printf so the loops do not get optimized away.
+  if (sum == 0.0)
+    logprintf(12, "Log: I'm Feeling Lucky!\n");
+  return true;
+}
+
+PCIDevices OsLayer::GetPCIDevices() {
+  PCIDevices device_list;
+  DIR *dir;
+  struct dirent *buf = new struct dirent();
+  struct dirent *entry;
+  dir = opendir(kSysfsPath);
+  if (!dir)
+    logprintf(0, "Process Error: Cannot open %s", kSysfsPath);
+  while (readdir_r(dir, buf, &entry) == 0 && entry) {
+    PCIDevice *device;
+    unsigned int dev, func;
+    // ".", ".." or a special non-device perhaps.
+    if (entry->d_name[0] == '.')
+      continue;
+
+    device = new PCIDevice();
+    if (sscanf(entry->d_name, "%04x:%02hx:%02x.%d",
+               &device->domain, &device->bus, &dev, &func) < 4) {
+      logprintf(0, "Process Error: Couldn't parse %s", entry->d_name);
+      free(device);
+      continue;
+    }
+    device->dev = dev;
+    device->func = func;
+    device->vendor_id = PCIGetValue(entry->d_name, "vendor");
+    device->device_id = PCIGetValue(entry->d_name, "device");
+    PCIGetResources(entry->d_name, device);
+    device_list.insert(device_list.end(), device);
+  }
+  closedir(dir);
+  delete buf;
+  return device_list;
+}
+
+int OsLayer::PCIGetValue(string name, string object) {
+  int fd, len;
+  char filename[256];
+  char buf[256];
+  snprintf(filename, sizeof(filename), "%s/%s/%s", kSysfsPath,
+           name.c_str(), object.c_str());
+  fd = open(filename, O_RDONLY);
+  if (fd < 0)
+    return 0;
+  len = read(fd, buf, 256);
+  close(fd);
+  buf[len] = '\0';
+  return strtol(buf, NULL, 0);  // NOLINT
+}
+
+int OsLayer::PCIGetResources(string name, PCIDevice *device) {
+  char filename[256];
+  char buf[256];
+  FILE *file;
+  int64 start;
+  int64 end;
+  int64 size;
+  int i;
+  snprintf(filename, sizeof(filename), "%s/%s/%s", kSysfsPath,
+           name.c_str(), "resource");
+  file = fopen(filename, "r");
+  if (!file) {
+    logprintf(0, "Process Error: impossible to find resource file for %s",
+              filename);
+    return errno;
+  }
+  for (i = 0; i < 6; i++) {
+    if (!fgets(buf, 256, file))
+      break;
+    sscanf(buf, "%llx %llx", &start, &end);  // NOLINT
+    size = 0;
+    if (start)
+      size = end - start + 1;
+    device->base_addr[i] = start;
+    device->size[i] = size;
+  }
+  fclose(file);
+  return 0;
+}
diff --git a/src/os.h b/src/os.h
new file mode 100644
index 0000000..28c8a2a
--- /dev/null
+++ b/src/os.h
@@ -0,0 +1,290 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+// Author: nsanders, menderico
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef STRESSAPPTEST_OS_H_  // NOLINT
+#define STRESSAPPTEST_OS_H_
+
+#include <dirent.h>
+#include <string>
+#include <list>
+#include <map>
+#include <vector>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "adler32memcpy.h"  // NOLINT
+#include "sattypes.h"       // NOLINT
+
+const char kSysfsPath[] = "/sys/bus/pci/devices";
+
+struct PCIDevice {
+  int32 domain;
+  uint16 bus;
+  uint8 dev;
+  uint8 func;
+  uint16 vendor_id;
+  uint16 device_id;
+  uint64 base_addr[6];
+  uint64 size[6];
+};
+
+typedef vector<PCIDevice*> PCIDevices;
+
+class ErrorDiag;
+
+// This class implements OS/Platform specific funtions.
+class OsLayer {
+ public:
+  OsLayer();
+  virtual ~OsLayer();
+
+  // Set the minimum amount of hugepages that should be available for testing.
+  // Must be set before Initialize().
+  void SetMinimumHugepagesSize(int64 min_bytes) {
+    min_hugepages_bytes_ = min_bytes;
+  }
+
+  // Initializes data strctures and open files.
+  // Returns false on error.
+  virtual bool Initialize();
+
+  // Virtual to physical. This implementation is optional for
+  // subclasses to implement.
+  // Takes a pointer, and returns the corresponding bus address.
+  virtual uint64 VirtualToPhysical(void *vaddr);
+
+  // Prints failed dimm. This implementation is optional for
+  // subclasses to implement.
+  // Takes a bus address and string, and prints the DIMM name
+  // into the string. Returns error status.
+  virtual int FindDimm(uint64 addr, char *buf, int len);
+  // Print dimm info, plus more available info.
+  virtual int FindDimmExtended(uint64 addr, char *buf, int len) {
+    return FindDimm(addr, buf, len);
+  }
+
+
+  // Classifies addresses according to "regions"
+  // This may mean different things on different platforms.
+  virtual int32 FindRegion(uint64 paddr);
+  // Find cpu cores associated with a region. Either NUMA or arbitrary.
+  virtual cpu_set_t *FindCoreMask(int32 region);
+  // Return cpu cores associated with a region in a hex string.
+  virtual string FindCoreMaskFormat(int32 region);
+
+  // Returns the HD device that contains this file.
+  virtual string FindFileDevice(string filename);
+
+  // Returns a list of paths coresponding to HD devices found on this machine.
+  virtual list<string> FindFileDevices();
+
+  // Polls for errors. This implementation is optional.
+  // This will poll once for errors and return zero iff no errors were found.
+  virtual int ErrorPoll();
+
+  // Delay an appropriate amount of time between polling.
+  virtual void ErrorWait();
+
+  // Report errors. This implementation is mandatory.
+  // This will output a machine readable line regarding the error.
+  virtual bool ErrorReport(const char *part, const char *symptom, int count);
+
+  // Flushes cacheline. Used to distinguish read or write errors.
+  // Subclasses may implement this in machine specific ways..
+  // Takes a pointer, and flushed the cacheline containing that pointer.
+  virtual void Flush(void *vaddr);
+
+  // Fast flush, for use in performance critical code.
+  // This is bound at compile time, and will not pick up
+  // any runtime machine configuration info.
+  inline static void FastFlush(void *vaddr) {
+#ifdef STRESSAPPTEST_CPU_PPC
+    asm volatile("dcbf 0,%0; sync" : : "r" (vaddr));
+#elif defined(STRESSAPPTEST_CPU_X86_64) || defined(STRESSAPPTEST_CPU_I686)
+    // Put mfence before and after clflush to make sure:
+    // 1. The write before the clflush is committed to memory bus;
+    // 2. The read after the clflush is hitting the memory bus.
+    //
+    // From Intel manual:
+    // CLFLUSH is only ordered by the MFENCE instruction. It is not guaranteed
+    // to be ordered by any other fencing, serializing or other CLFLUSH
+    // instruction. For example, software can use an MFENCE instruction to
+    // insure that previous stores are included in the write-back.
+    asm volatile("mfence");
+    asm volatile("clflush (%0)" :: "r" (vaddr));
+    asm volatile("mfence");
+#elif defined(STRESSAPPTEST_CPU_ARMV7A)
+  #warning "Unsupported CPU type ARMV7A: Unable to force cache flushes."
+#else
+  #warning "Unsupported CPU type: Unable to force cache flushes."
+#endif
+  }
+
+  // Get time in cpu timer ticks. Useful for matching MCEs with software
+  // actions.
+  inline static uint64 GetTimestamp(void) {
+    uint64 tsc;
+#ifdef STRESSAPPTEST_CPU_PPC
+    uint32 tbl, tbu, temp;
+    __asm __volatile(
+      "1:\n"
+      "mftbu  %2\n"
+      "mftb   %0\n"
+      "mftbu  %1\n"
+      "cmpw   %2,%1\n"
+      "bne    1b\n"
+      : "=r"(tbl), "=r"(tbu), "=r"(temp)
+      :
+      : "cc");
+
+    tsc = (static_cast<uint64>(tbu) << 32) | static_cast<uint64>(tbl);
+#elif defined(STRESSAPPTEST_CPU_X86_64) || defined(STRESSAPPTEST_CPU_I686)
+    datacast_t data;
+    __asm __volatile("rdtsc" : "=a" (data.l32.l), "=d"(data.l32.h));
+    tsc = data.l64;
+#elif defined(STRESSAPPTEST_CPU_ARMV7A)
+  #warning "Unsupported CPU type ARMV7A: your build may not function correctly"
+    tsc = 0;
+#else
+  #warning "Unsupported CPU type: your build may not function correctly"
+    tsc = 0;
+#endif
+    return (tsc);
+  }
+
+  // Find the free memory on the machine.
+  virtual int64 FindFreeMemSize();
+
+  // Allocates test memory of length bytes.
+  // Subclasses must implement this.
+  // Call PepareTestMem to get a pointer.
+  virtual int64 AllocateAllMem();  // Returns length.
+  // Returns success.
+  virtual bool AllocateTestMem(int64 length, uint64 paddr_base);
+  virtual void FreeTestMem();
+
+  // Prepares the memory for use. You must call this
+  // before using test memory, and after you are done.
+  virtual void *PrepareTestMem(uint64 offset, uint64 length);
+  virtual void ReleaseTestMem(void *addr, uint64 offset, uint64 length);
+
+  // Machine type detected. Can we implement all these functions correctly?
+  // Returns true if machine type is detected and implemented.
+  virtual bool IsSupported();
+
+  // Returns 32 for 32-bit, 64 for 64-bit.
+  virtual int AddressMode();
+  // Update OsLayer state regarding cpu support for various features.
+  virtual void GetFeatures();
+
+  // Open, read, write pci cfg through /proc/bus/pci. fd is /proc/pci file.
+  virtual int PciOpen(int bus, int device, int function);
+  virtual void PciWrite(int fd, uint32 offset, uint32 value, int width);
+  virtual uint32 PciRead(int fd, uint32 offset, int width);
+
+  // Read MSRs
+  virtual bool ReadMSR(uint32 core, uint32 address, uint64 *data);
+  virtual bool WriteMSR(uint32 core, uint32 address, uint64 *data);
+
+  // Extract bits [n+len-1, n] from a 32 bit word.
+  // so GetBitField(0x0f00, 8, 4) == 0xf.
+  virtual uint32 GetBitField(uint32 val, uint32 n, uint32 len);
+
+  // Platform and CPU specific CPU-stressing function.
+  // Returns true on success, false otherwise.
+  virtual bool CpuStressWorkload();
+
+  // Causes false errors for unittesting.
+  // Setting to "true" causes errors to be injected.
+  void set_error_injection(bool errors) { error_injection_ = errors; }
+  bool error_injection() const { return error_injection_; }
+
+  // Is SAT using normal malloc'd memory, or exotic mmap'd memory.
+  bool normal_mem() const { return normal_mem_; }
+
+  // Get numa config, if available..
+  int num_nodes() const { return num_nodes_; }
+  int num_cpus() const { return num_cpus_; }
+
+  // Handle to platform-specific error diagnoser.
+  ErrorDiag *error_diagnoser_;
+
+  // Detect all PCI Devices.
+  virtual PCIDevices GetPCIDevices();
+
+  // Disambiguate between different "warm" memcopies.
+  virtual bool AdlerMemcpyWarm(uint64 *dstmem, uint64 *srcmem,
+                               unsigned int size_in_bytes,
+                               AdlerChecksum *checksum);
+
+  // Store a callback to use to print
+  // app-specific info about the last error location.
+  // This call back is called with a physical address, and the app can fill in
+  // the most recent transaction that occurred at that address.
+  typedef bool (*ErrCallback)(uint64 paddr, string *buf);
+  void set_err_log_callback(
+    ErrCallback err_log_callback) {
+    err_log_callback_ = err_log_callback;
+  }
+  ErrCallback get_err_log_callback() { return err_log_callback_; }
+
+ protected:
+  void *testmem_;                // Location of test memory.
+  uint64 testmemsize_;           // Size of test memory.
+  int64 totalmemsize_;           // Size of available memory.
+  int64 min_hugepages_bytes_;    // Minimum hugepages size.
+  bool  error_injection_;        // Do error injection?
+  bool  normal_mem_;             // Memory DMA capable?
+  bool  use_hugepages_;          // Use hugepage shmem?
+  bool  use_posix_shm_;          // Use 4k page shmem?
+  bool  dynamic_mapped_shmem_;   // Conserve virtual address space.
+  int   shmid_;                  // Handle to shmem
+
+  int64 regionsize_;             // Size of memory "regions"
+  int   regioncount_;            // Number of memory "regions"
+  int   num_cpus_;               // Number of cpus in the system.
+  int   num_nodes_;              // Number of nodes in the system.
+  int   num_cpus_per_node_;      // Number of cpus per node in the system.
+  int   address_mode_;           // Are we running 32 or 64 bit?
+  bool  has_sse2_;               // Do we have sse2 instructions?
+  bool  has_clflush_;            // Do we have clflush instructions?
+
+
+  time_t time_initialized_;      // Start time of test.
+
+  vector<cpu_set_t> cpu_sets_;   // Cache for cpu masks.
+  vector<bool> cpu_sets_valid_;  // If the cpu mask cache is valid.
+
+  // Get file descriptor for dev msr.
+  virtual int OpenMSR(uint32 core, uint32 address);
+  // Auxiliary methods for PCI device configuration
+  int PCIGetValue(string name, string object);
+  int PCIGetResources(string name, PCIDevice *device);
+
+  // Look up how many hugepages there are.
+  virtual int64 FindHugePages();
+
+  // Link to find last transaction at an error location.
+  ErrCallback err_log_callback_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(OsLayer);
+};
+
+// Selects and returns the proper OS and hardware interface.  Does not call
+// OsLayer::Initialize() on the new object.
+OsLayer *OsLayerFactory(const std::map<std::string, std::string> &options);
+
+#endif  // STRESSAPPTEST_OS_H_ NOLINT
diff --git a/src/os_factory.cc b/src/os_factory.cc
new file mode 100644
index 0000000..359f7ee
--- /dev/null
+++ b/src/os_factory.cc
@@ -0,0 +1,40 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file generates an OS interface class consistant with the
+// current machine type. No machine type detection is currently done.
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <string.h>
+
+#include <map>
+#include <string>
+
+#include "os.h"
+
+
+// Select the proper OS and hardware interface.
+OsLayer *OsLayerFactory(const std::map<std::string, std::string> &options) {
+  OsLayer *os = 0;
+  os = new OsLayer();
+
+  // Check for memory allocation failure.
+  if (!os) {
+    logprintf(0, "Process Error: Can't allocate memory\n");
+    return 0;
+  }
+  return os;
+}
diff --git a/src/pattern.cc b/src/pattern.cc
new file mode 100644
index 0000000..9f22674
--- /dev/null
+++ b/src/pattern.cc
@@ -0,0 +1,421 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// pattern.cc : library of stressful data patterns
+
+#include <sys/types.h>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "pattern.h"
+#include "sattypes.h"
+
+// Static data patterns.
+
+static unsigned int walkingOnes_data[] =   {
+  0x00000001, 0x00000002, 0x00000004, 0x00000008,
+  0x00000010, 0x00000020, 0x00000040, 0x00000080,
+  0x00000100, 0x00000200, 0x00000400, 0x00000800,
+  0x00001000, 0x00002000, 0x00004000, 0x00008000,
+  0x00010000, 0x00020000, 0x00040000, 0x00080000,
+  0x00100000, 0x00200000, 0x00400000, 0x00800000,
+  0x01000000, 0x02000000, 0x04000000, 0x08000000,
+  0x10000000, 0x20000000, 0x40000000, 0x80000000,
+  0x40000000, 0x20000000, 0x10000000, 0x08000000,
+  0x04000000, 0x02000000, 0x01000000, 0x00800000,
+  0x00400000, 0x00200000, 0x00100000, 0x00080000,
+  0x00040000, 0x00020000, 0x00010000, 0x00008000,
+  0x00004000, 0x00002000, 0x00001000, 0x00000800,
+  0x00000400, 0x00000200, 0x00000100, 0x00000080,
+  0x00000040, 0x00000020, 0x00000010, 0x00000008,
+  0x00000004, 0x00000002, 0x00000001, 0x00000000
+};
+static const struct PatternData walkingOnes = {
+  "walkingOnes",
+  walkingOnes_data,
+  (sizeof walkingOnes_data / sizeof walkingOnes_data[0]) - 1,
+  {1, 1, 2, 1}  // Weight for choosing 32/64/128/256 bit wide of this pattern
+};
+
+static unsigned int walkingInvOnes_data[] =   {
+  0x00000001, 0xfffffffe, 0x00000002, 0xfffffffd,
+  0x00000004, 0xfffffffb, 0x00000008, 0xfffffff7,
+  0x00000010, 0xffffffef, 0x00000020, 0xffffffdf,
+  0x00000040, 0xffffffbf, 0x00000080, 0xffffff7f,
+  0x00000100, 0xfffffeff, 0x00000200, 0xfffffdff,
+  0x00000400, 0xfffffbff, 0x00000800, 0xfffff7ff,
+  0x00001000, 0xffffefff, 0x00002000, 0xffffdfff,
+  0x00004000, 0xffffbfff, 0x00008000, 0xffff7fff,
+  0x00010000, 0xfffeffff, 0x00020000, 0xfffdffff,
+  0x00040000, 0xfffbffff, 0x00080000, 0xfff7ffff,
+  0x00100000, 0xffefffff, 0x00200000, 0xffdfffff,
+  0x00400000, 0xffbfffff, 0x00800000, 0xff7fffff,
+  0x01000000, 0xfeffffff, 0x02000000, 0xfdffffff,
+  0x04000000, 0xfbffffff, 0x08000000, 0xf7ffffff,
+  0x10000000, 0xefffffff, 0x20000000, 0xdfffffff,
+  0x40000000, 0xbfffffff, 0x80000000, 0x7fffffff,
+  0x40000000, 0xbfffffff, 0x20000000, 0xdfffffff,
+  0x10000000, 0xefffffff, 0x08000000, 0xf7ffffff,
+  0x04000000, 0xfbffffff, 0x02000000, 0xfdffffff,
+  0x01000000, 0xfeffffff, 0x00800000, 0xff7fffff,
+  0x00400000, 0xffbfffff, 0x00200000, 0xffdfffff,
+  0x00100000, 0xffefffff, 0x00080000, 0xfff7ffff,
+  0x00040000, 0xfffbffff, 0x00020000, 0xfffdffff,
+  0x00010000, 0xfffeffff, 0x00008000, 0xffff7fff,
+  0x00004000, 0xffffbfff, 0x00002000, 0xffffdfff,
+  0x00001000, 0xffffefff, 0x00000800, 0xfffff7ff,
+  0x00000400, 0xfffffbff, 0x00000200, 0xfffffdff,
+  0x00000100, 0xfffffeff, 0x00000080, 0xffffff7f,
+  0x00000040, 0xffffffbf, 0x00000020, 0xffffffdf,
+  0x00000010, 0xffffffef, 0x00000008, 0xfffffff7,
+  0x00000004, 0xfffffffb, 0x00000002, 0xfffffffd,
+  0x00000001, 0xfffffffe, 0x00000000, 0xffffffff
+};
+static const struct PatternData walkingInvOnes = {
+  "walkingInvOnes",
+  walkingInvOnes_data,
+  (sizeof walkingInvOnes_data / sizeof walkingInvOnes_data[0]) - 1,
+  {2, 2, 5, 5}
+};
+
+static unsigned int walkingZeros_data[] =   {
+  0xfffffffe, 0xfffffffd, 0xfffffffb, 0xfffffff7,
+  0xffffffef, 0xffffffdf, 0xffffffbf, 0xffffff7f,
+  0xfffffeff, 0xfffffdff, 0xfffffbff, 0xfffff7ff,
+  0xffffefff, 0xffffdfff, 0xffffbfff, 0xffff7fff,
+  0xfffeffff, 0xfffdffff, 0xfffbffff, 0xfff7ffff,
+  0xffefffff, 0xffdfffff, 0xffbfffff, 0xff7fffff,
+  0xfeffffff, 0xfdffffff, 0xfbffffff, 0xf7ffffff,
+  0xefffffff, 0xdfffffff, 0xbfffffff, 0x7fffffff,
+  0xbfffffff, 0xdfffffff, 0xefffffff, 0xf7ffffff,
+  0xfbffffff, 0xfdffffff, 0xfeffffff, 0xff7fffff,
+  0xffbfffff, 0xffdfffff, 0xffefffff, 0xfff7ffff,
+  0xfffbffff, 0xfffdffff, 0xfffeffff, 0xffff7fff,
+  0xffffbfff, 0xffffdfff, 0xffffefff, 0xfffff7ff,
+  0xfffffbff, 0xfffffdff, 0xfffffeff, 0xffffff7f,
+  0xffffffbf, 0xffffffdf, 0xffffffef, 0xfffffff7,
+  0xfffffffb, 0xfffffffd, 0xfffffffe, 0xffffffff
+};
+static const struct PatternData walkingZeros = {
+  "walkingZeros",
+  walkingZeros_data,
+  (sizeof walkingZeros_data / sizeof walkingZeros_data[0]) - 1,
+  {1, 1, 2, 1}
+};
+
+static unsigned int OneZero_data[] =   { 0x00000000, 0xffffffff};
+static const struct PatternData OneZero = {
+  "OneZero",
+  OneZero_data,
+  (sizeof OneZero_data / sizeof OneZero_data[0]) - 1,
+  {5, 5, 15, 5}
+};
+
+static unsigned int JustZero_data[] =   { 0x00000000, 0x00000000};
+static const struct PatternData JustZero = {
+  "JustZero",
+  JustZero_data,
+  (sizeof JustZero_data / sizeof JustZero_data[0]) - 1,
+  {2, 0, 0, 0}
+};
+
+static unsigned int JustOne_data[] =   { 0xffffffff, 0xffffffff};
+static const struct PatternData JustOne = {
+  "JustOne",
+  JustOne_data,
+  (sizeof JustOne_data / sizeof JustOne_data[0]) - 1,
+  {2, 0, 0, 0}
+};
+
+static unsigned int JustFive_data[] =   { 0x55555555, 0x55555555};
+static const struct PatternData JustFive = {
+  "JustFive",
+  JustFive_data,
+  (sizeof JustFive_data / sizeof JustFive_data[0]) - 1,
+  {2, 0, 0, 0}
+};
+
+static unsigned int JustA_data[] =   { 0xaaaaaaaa, 0xaaaaaaaa};
+static const struct PatternData JustA = {
+  "JustA",
+  JustA_data,
+  (sizeof JustA_data / sizeof JustA_data[0]) - 1,
+  {2, 0, 0, 0}
+};
+
+static unsigned int FiveA_data[] =   { 0x55555555, 0xaaaaaaaa};
+static const struct PatternData FiveA = {
+  "FiveA",
+  FiveA_data,
+  (sizeof FiveA_data / sizeof FiveA_data[0]) - 1,
+  {1, 1, 1, 1}
+};
+
+static unsigned int FiveA8_data[] =   {
+  0x5aa5a55a, 0xa55a5aa5, 0xa55a5aa5, 0x5aa5a55a
+};
+static const struct PatternData FiveA8 = {
+  "FiveA8",
+  FiveA8_data,
+  (sizeof FiveA8_data / sizeof FiveA8_data[0]) - 1,
+  {1, 1, 1, 1}
+};
+
+static unsigned int Long8b10b_data[] =   { 0x16161616, 0x16161616 };
+static const struct PatternData Long8b10b = {
+  "Long8b10b",
+  Long8b10b_data,
+  (sizeof Long8b10b_data / sizeof Long8b10b_data[0]) - 1,
+  {2, 0, 0, 0}
+};
+
+static unsigned int Short8b10b_data[] =   { 0xb5b5b5b5, 0xb5b5b5b5 };
+static const struct PatternData Short8b10b = {
+  "Short8b10b",
+  Short8b10b_data,
+  (sizeof Short8b10b_data / sizeof Short8b10b_data[0]) - 1,
+  {2, 0, 0, 0}
+};
+
+static unsigned int Checker8b10b_data[] =   { 0xb5b5b5b5, 0x4a4a4a4a };
+static const struct PatternData Checker8b10b = {
+  "Checker8b10b",
+  Checker8b10b_data,
+  (sizeof Checker8b10b_data / sizeof Checker8b10b_data[0]) - 1,
+  {1, 0, 0, 1}
+};
+
+static unsigned int Five7_data[] =   { 0x55555557, 0x55575555 };
+static const struct PatternData Five7 = {
+  "Five7",
+  Five7_data,
+  (sizeof Five7_data / sizeof Five7_data[0]) - 1,
+  {0, 2, 0, 0}
+};
+
+static unsigned int Zero2fd_data[] =   { 0x00020002, 0xfffdfffd };
+static const struct PatternData Zero2fd = {
+  "Zero2fd",
+  Zero2fd_data,
+  (sizeof Zero2fd_data / sizeof Zero2fd_data[0]) - 1,
+  {0, 2, 0, 0}
+};
+
+// Extern array of useable patterns.
+static const struct PatternData pattern_array[] = {
+  walkingOnes,
+  walkingInvOnes,
+  walkingZeros,
+  OneZero,
+  JustZero,
+  JustOne,
+  JustFive,
+  JustA,
+  FiveA,
+  FiveA8,
+  Long8b10b,
+  Short8b10b,
+  Checker8b10b,
+  Five7,
+  Zero2fd,
+};
+static const int pattern_array_size =
+    sizeof pattern_array / sizeof pattern_array[0];
+
+Pattern::Pattern() {
+  crc_ = NULL;
+}
+
+Pattern::~Pattern() {
+  if (crc_ != NULL) {
+    delete crc_;
+  }
+}
+
+// Calculate CRC for this pattern. This must match
+// the CRC calculation in worker.cc.
+int Pattern::CalculateCrc() {
+  // TODO(johnhuang):
+  // Consider refactoring to the form:
+  // while (i < count) AdlerInc(uint64, uint64, AdlerChecksum*)
+  uint64 a1 = 1;
+  uint64 a2 = 1;
+  uint64 b1 = 0;
+  uint64 b2 = 0;
+
+  // checksum is calculated using only the first 4096 bytes of data.
+  int i = 0;
+  int blocksize = 4096;
+  int count = blocksize / sizeof i;
+  while (i < count) {
+    a1 += pattern(i);
+    b1 += a1;
+    i++;
+    a1 += pattern(i);
+    b1 += a1;
+    i++;
+
+    a2 += pattern(i);
+    b2 += a2;
+    i++;
+    a2 += pattern(i);
+    b2 += a2;
+    i++;
+  }
+  if (crc_ != NULL) {
+    delete crc_;
+  }
+  crc_ = new AdlerChecksum();
+  crc_->Set(a1, a2, b1, b2);
+  return 0;
+}
+
+// Initialize pattern's CRC.
+int Pattern::Initialize(const struct PatternData &pattern_init,
+                        int buswidth,
+                        bool invert,
+                        int weight) {
+  int result = 1;
+
+  pattern_ = &pattern_init;
+  busshift_ = 2;
+  inverse_ = invert;
+  weight_ = weight;
+
+  name_.clear();
+  name_.append(pattern_->name);
+
+  if (invert)
+    name_.append("~");
+
+  if (buswidth == 32) {
+    name_.append("32");
+    busshift_ = 0;
+  } else if (buswidth == 64) {
+    name_.append("64");
+    busshift_ = 1;
+  } else if (buswidth == 128) {
+    name_.append("128");
+    busshift_ = 2;
+  } else if (buswidth == 256) {
+    name_.append("256");
+    busshift_ = 3;
+  } else {
+    logprintf(0, "Process Error: Confused by bus width %d\n",
+              buswidth);
+    name_.append("Broken");
+    result = 0;
+  }
+
+  CalculateCrc();
+
+  return result;
+}
+
+
+PatternList::PatternList() {
+  size_= 0;
+  initialized_ = 0;
+}
+
+PatternList::~PatternList() {
+  if (initialized_) {
+    Destroy();
+  }
+}
+
+// Fill in the class with references to the static data patterns
+int PatternList::Initialize() {
+  int patterncount = 0;
+  int weightcount = 0;
+
+  patterns_.resize(pattern_array_size * 8);
+  for (int i = 0; i < pattern_array_size; i++) {
+    // Non inverted.
+    weightcount += pattern_array[i].weight[0];
+    patterns_[patterncount++].Initialize(pattern_array[i], 32, false,
+                                         pattern_array[i].weight[0]);
+    weightcount += pattern_array[i].weight[1];
+    patterns_[patterncount++].Initialize(pattern_array[i], 64, false,
+                                         pattern_array[i].weight[1]);
+    weightcount += pattern_array[i].weight[2];
+    patterns_[patterncount++].Initialize(pattern_array[i], 128, false,
+                                         pattern_array[i].weight[2]);
+    weightcount += pattern_array[i].weight[3];
+    patterns_[patterncount++].Initialize(pattern_array[i], 256, false,
+                                         pattern_array[i].weight[3]);
+
+    // Inverted.
+    weightcount += pattern_array[i].weight[0];
+    patterns_[patterncount++].Initialize(pattern_array[i], 32, true,
+                                         pattern_array[i].weight[0]);
+    weightcount += pattern_array[i].weight[1];
+    patterns_[patterncount++].Initialize(pattern_array[i], 64, true,
+                                         pattern_array[i].weight[1]);
+    weightcount += pattern_array[i].weight[2];
+    patterns_[patterncount++].Initialize(pattern_array[i], 128, true,
+                                         pattern_array[i].weight[2]);
+    weightcount += pattern_array[i].weight[3];
+    patterns_[patterncount++].Initialize(pattern_array[i], 256, true,
+                                         pattern_array[i].weight[3]);
+  }
+  size_ = patterncount;
+  weightcount_ = weightcount;
+  initialized_ = 1;
+
+  logprintf(12, "Log: initialized %d data patterns\n", size_);
+
+  return 1;
+}
+
+// Free the stuff.
+int PatternList::Destroy() {
+  if (!initialized_)
+    return 0;
+
+  patterns_.clear();
+  size_ = 0;
+  initialized_ = 0;
+
+  return 1;
+}
+
+// Return pattern numbered "i"
+Pattern *PatternList::GetPattern(int i) {
+  if (static_cast<unsigned int>(i) < size_) {
+    return &patterns_[i];
+  }
+
+  logprintf(0, "Process Error: Out of bounds pattern access\n");
+  return 0;
+}
+
+// Return a randomly selected pattern.
+Pattern *PatternList::GetRandomPattern() {
+  unsigned int target = random();
+  target = target % weightcount_;
+
+  unsigned int i = 0;
+  unsigned int sum = 0;
+  while (target > sum) {
+    sum += patterns_[i].weight();
+    i++;
+  }
+  if (i < size_) {
+    return &patterns_[i];
+  }
+
+  logprintf(0, "Process Error: Out of bounds pattern access\n");
+  return 0;
+}
diff --git a/src/pattern.h b/src/pattern.h
new file mode 100644
index 0000000..181f839
--- /dev/null
+++ b/src/pattern.h
@@ -0,0 +1,124 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// pattern.h : global pattern references and initialization
+
+// This file implements easy access to statically declared
+// data patterns.
+
+#ifndef STRESSAPPTEST_PATTERN_H_
+#define STRESSAPPTEST_PATTERN_H_
+
+#include <vector>
+#include <string>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "adler32memcpy.h"
+#include "sattypes.h"
+
+// 2 = 128 bit bus, 1 = 64 bit bus, 0 = 32 bit bus
+const int kBusShift = 2;
+
+// Pattern and CRC data structure
+struct PatternData {
+  const char *name;          // Name of this pattern.
+  unsigned int *pat;         // Data array.
+  unsigned int mask;         // Size - 1. data[index & mask] is always valid.
+  unsigned char weight[4];   // Weighted frequency of this pattern.
+                             // Each pattern has 32,64,128,256 width versions.
+                             // All weights are added up, a random number is
+                             // chosen between 0-sum(weights), and the
+                             // appropriate pattern is chosen. Thus a weight of
+                             // 1 is rare, a weight of 10 is 2x as likely to be
+                             // chosen as a weight of 5.
+};
+
+// Data structure to access data patterns.
+class Pattern {
+ public:
+  Pattern();
+  ~Pattern();
+  // Fill pattern data and calculate CRC.
+  int Initialize(const struct PatternData &pattern_init,
+                 int buswidth,
+                 bool invert,
+                 int weight);
+
+  // Access data members.
+  // "busshift_" allows for repeating each pattern word 1, 2, 4, etc. times.
+  // in order to create patterns of different width.
+  unsigned int pattern(unsigned int offset) {
+    unsigned int data = pattern_->pat[(offset >> busshift_) & pattern_->mask];
+    if (inverse_)
+      data = ~data;
+    return data;
+  }
+  const AdlerChecksum *crc() {return crc_;}
+  unsigned int mask() {return pattern_->mask;}
+  unsigned int weight() {return weight_;}
+  const char *name() {return name_.c_str();}
+
+ private:
+  int CalculateCrc();
+  const struct PatternData *pattern_;
+  int busshift_;        // Target data bus width.
+  bool inverse_;        // Invert the data from the original pattern.
+  AdlerChecksum *crc_;  // CRC of this pattern.
+  string name_;         // The human readable pattern name.
+  int weight_;          // This is the likelihood that this
+                        // pattern will be chosen.
+  // We want to copy this!
+  // DISALLOW_COPY_AND_ASSIGN(Pattern);
+};
+
+// Object used to access global pattern list.
+class PatternList {
+ public:
+  PatternList();
+  ~PatternList();
+  // Initialize pointers to global data patterns, and calculate CRC.
+  int Initialize();
+  int Destroy();
+
+  // Return the pattern designated by index i.
+  Pattern *GetPattern(int i);
+  // Return a random pattern according to the specified weighted probability.
+  Pattern *GetRandomPattern();
+  // Return the number of patterns available.
+  int Size() {return size_;}
+
+ private:
+  vector<class Pattern> patterns_;
+  int weightcount_;  // Total count of pattern weights.
+  unsigned int size_;
+  int initialized_;
+  DISALLOW_COPY_AND_ASSIGN(PatternList);
+};
+
+// CrcIncrement allows an abstracted way to add a 32bit
+// value into a running CRC. This function should be fast, and
+// generate meaningful CRCs for the types of data patterns that
+// we are using here.
+// This CRC formula may not be optimal, but it does work.
+// It may be improved in the future.
+static inline uint32 CrcIncrement(uint32 crc, uint32 expected, int index) {
+  uint32 addition = (expected ^ index);
+  uint32 carry = (addition & crc) >> 31;
+
+  return crc + addition + carry;
+}
+
+
+#endif  // STRESSAPPTEST_PATTERN_H_
diff --git a/src/queue.cc b/src/queue.cc
new file mode 100644
index 0000000..d735e68
--- /dev/null
+++ b/src/queue.cc
@@ -0,0 +1,118 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// queue.cc : simple thread safe queue implementation
+
+#include <stdlib.h>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "queue.h"
+#include "sattypes.h"
+
+// Page entry queue implementation follows.
+// Push inserts pages, pop returns a random entry.
+
+
+PageEntryQueue::PageEntryQueue(uint64 queuesize) {
+  // There must always be one empty queue location,
+  // since in == out => empty.
+  q_size_ = queuesize + 1;
+  pages_ = new struct page_entry[q_size_];
+  nextin_ = 0;
+  nextout_ = 0;
+  popped_ = 0;
+  pushed_ = 0;
+  pthread_mutex_init(&q_mutex_, NULL);
+}
+PageEntryQueue::~PageEntryQueue() {
+  delete[] pages_;
+  pthread_mutex_destroy(&q_mutex_);
+}
+
+// Add a page into this queue.
+int PageEntryQueue::Push(struct page_entry *pe) {
+  int result = 0;
+  int64 nextnextin;
+
+  if (!pe)
+    return 0;
+
+  pthread_mutex_lock(&q_mutex_);
+  nextnextin = (nextin_ + 1) % q_size_;
+
+  if (nextnextin != nextout_) {
+    pages_[nextin_] = *pe;
+
+    nextin_ = nextnextin;
+    result = 1;
+
+    pushed_++;
+  }
+
+  pthread_mutex_unlock(&q_mutex_);
+
+  return result;
+}
+
+// Retrieve a random page from this queue.
+int PageEntryQueue::PopRandom(struct page_entry *pe) {
+  int result = 0;
+  int64 lastin;
+  int64 entries;
+  int64 newindex;
+  struct page_entry tmp;
+
+  if (!pe)
+    return 0;
+
+  // TODO(nsanders): we should improve random to get 64 bit randoms, and make
+  // it more thread friendly.
+  uint64 rand = random();
+
+  int retval = pthread_mutex_lock(&q_mutex_);
+  if (retval)
+    logprintf(0, "Process Error: pthreads mutex failure %d\n", retval);
+
+
+  if (nextin_ != nextout_) {
+    // Randomized fetch.
+    // Swap random entry with next out.
+    {
+      lastin = (nextin_ - 1 + q_size_) % q_size_;
+      entries = (lastin - nextout_ + q_size_) % q_size_;
+
+      newindex = nextout_;
+      if (entries)
+        newindex = ((rand % entries) + nextout_) % q_size_;
+
+      // Swap the pages.
+      tmp = pages_[nextout_];
+      pages_[nextout_] = pages_[newindex];
+      pages_[newindex] = tmp;
+    }
+
+    // Return next out page.
+    *pe = pages_[nextout_];
+
+    nextout_ = (nextout_ + 1) % q_size_;
+    result = 1;
+
+    popped_++;
+  }
+
+  pthread_mutex_unlock(&q_mutex_);
+
+  return result;
+}
diff --git a/src/queue.h b/src/queue.h
new file mode 100644
index 0000000..a6296b1
--- /dev/null
+++ b/src/queue.h
@@ -0,0 +1,85 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// queue.h : simple queue api
+
+// This is an interface to a simple thread safe queue,
+// used to hold data blocks and patterns.
+// The order in which the blocks are returned is random.
+
+#ifndef STRESSAPPTEST_QUEUE_H_  // NOLINT
+#define STRESSAPPTEST_QUEUE_H_
+
+#include <sys/types.h>
+#include <pthread.h>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "sattypes.h"  // NOLINT
+#include "pattern.h"   // NOLINT
+
+// Tag indicating no preference.
+static const int kDontCareTag = -1;
+// Tag indicating no preference.
+static const int kInvalidTag = 0xf001;
+
+
+// This describes a block of memory, and the expected fill pattern.
+struct page_entry {
+  uint64 offset;
+  void *addr;
+  uint64 paddr;
+  class Pattern *pattern;
+  int32 tag;     // These are tags for use in NUMA affinity or other uses.
+  uint32 touch;  // Counter of the number of reads from this page.
+  uint64 ts;     // Timestamp of the last read from this page.
+  class Pattern *lastpattern;  // Expected Pattern at last read.
+};
+
+static inline void init_pe(struct page_entry *pe) {
+  pe->offset = 0;
+  pe->addr = NULL;
+  pe->pattern = NULL;
+  pe->tag = kInvalidTag;
+  pe->touch = 0;
+  pe->ts = 0;
+  pe->lastpattern = NULL;
+}
+
+// This is a threadsafe randomized queue of pages for
+// worker threads to use.
+class PageEntryQueue {
+ public:
+  explicit PageEntryQueue(uint64 queuesize);
+  ~PageEntryQueue();
+
+  // Push a page onto the list.
+  int Push(struct page_entry *pe);
+  // Pop a random page off of the list.
+  int PopRandom(struct page_entry *pe);
+
+ private:
+  struct page_entry *pages_;  // Where the pages are held.
+  int64 nextin_;
+  int64 nextout_;
+  int64 q_size_;  // Size of the queue.
+  int64 pushed_;  // Number of pages pushed, total.
+  int64 popped_;  // Number of pages popped, total.
+  pthread_mutex_t q_mutex_;
+
+  DISALLOW_COPY_AND_ASSIGN(PageEntryQueue);
+};
+
+
+#endif  // MILES_TESTS_SAT_QUEUE_H_ NOLINT
diff --git a/src/sat.cc b/src/sat.cc
new file mode 100644
index 0000000..bed62b7
--- /dev/null
+++ b/src/sat.cc
@@ -0,0 +1,1890 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// sat.cc : a stress test for stressful testing
+
+// stressapptest (or SAT, from Stressful Application Test) is a test
+// designed to stress the system, as well as provide a comprehensive
+// memory interface test.
+
+// stressapptest can be run using memory only, or using many system components.
+
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/stat.h>
+#include <sys/times.h>
+
+// #define __USE_GNU
+// #define __USE_LARGEFILE64
+#include <fcntl.h>
+
+#include <list>
+#include <string>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "disk_blocks.h"
+#include "logger.h"
+#include "os.h"
+#include "sat.h"
+#include "sattypes.h"
+#include "worker.h"
+
+// stressapptest versioning here.
+#ifndef PACKAGE_VERSION
+static const char* kVersion = "1.0.0";
+#else
+static const char* kVersion = PACKAGE_VERSION;
+#endif
+
+// Global stressapptest reference, for use by signal handler.
+// This makes Sat objects not safe for multiple instances.
+namespace {
+  Sat *g_sat = NULL;
+
+  // Signal handler for catching break or kill.
+  //
+  // This must be installed after g_sat is assigned and while there is a single
+  // thread.
+  //
+  // This must be uninstalled while there is only a single thread, and of course
+  // before g_sat is cleared or deleted.
+  void SatHandleBreak(int signal) {
+    g_sat->Break();
+  }
+}
+
+// Opens the logfile for writing if necessary
+bool Sat::InitializeLogfile() {
+  // Open logfile.
+  if (use_logfile_) {
+    logfile_ = open(logfilename_,
+                    O_WRONLY | O_CREAT | O_DSYNC,
+                    S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+    if (logfile_ < 0) {
+      printf("Fatal Error: cannot open file %s for logging\n",
+             logfilename_);
+      bad_status();
+      return false;
+    }
+    // We seek to the end once instead of opening in append mode because no
+    // other processes should be writing to it while this one exists.
+    if (lseek(logfile_, 0, SEEK_END) == -1) {
+      printf("Fatal Error: cannot seek to end of logfile (%s)\n",
+             logfilename_);
+      bad_status();
+      return false;
+    }
+    Logger::GlobalLogger()->SetLogFd(logfile_);
+  }
+  return true;
+}
+
+// Check that the environment is known and safe to run on.
+// Return 1 if good, 0 if unsuppported.
+bool Sat::CheckEnvironment() {
+  // Check that this is not a debug build. Debug builds lack
+  // enough performance to stress the system.
+#if !defined NDEBUG
+  if (run_on_anything_) {
+    logprintf(1, "Log: Running DEBUG version of SAT, "
+                 "with significantly reduced coverage.\n");
+  } else {
+    logprintf(0, "Process Error: Running DEBUG version of SAT, "
+                 "with significantly reduced coverage.\n");
+    logprintf(0, "Log: Command line option '-A' bypasses this error.\n");
+    bad_status();
+    return false;
+  }
+#elif !defined CHECKOPTS
+  #error Build system regression - COPTS disregarded.
+#endif
+
+  // Use all CPUs if nothing is specified.
+  if (memory_threads_ == -1) {
+    memory_threads_ = os_->num_cpus();
+    logprintf(7, "Log: Defaulting to %d copy threads\n", memory_threads_);
+  }
+
+  // Use all memory if no size is specified.
+  if (size_mb_ == 0)
+    size_mb_ = os_->FindFreeMemSize() / kMegabyte;
+  size_ = static_cast<int64>(size_mb_) * kMegabyte;
+
+  // Autodetect file locations.
+  if (findfiles_ && (file_threads_ == 0)) {
+    // Get a space separated sting of disk locations.
+    list<string> locations = os_->FindFileDevices();
+
+    // Extract each one.
+    while (!locations.empty()) {
+      // Copy and remove the disk name.
+      string disk = locations.back();
+      locations.pop_back();
+
+      logprintf(12, "Log: disk at %s\n", disk.c_str());
+      file_threads_++;
+      filename_.push_back(disk + "/sat_disk.a");
+      file_threads_++;
+      filename_.push_back(disk + "/sat_disk.b");
+    }
+  }
+
+  // We'd better have some memory by this point.
+  if (size_ < 1) {
+    logprintf(0, "Process Error: No memory found to test.\n");
+    bad_status();
+    return false;
+  }
+
+  if (tag_mode_ && ((file_threads_ > 0) ||
+                    (disk_threads_ > 0) ||
+                    (net_threads_ > 0))) {
+    logprintf(0, "Process Error: Memory tag mode incompatible "
+                 "with disk/network DMA.\n");
+    bad_status();
+    return false;
+  }
+
+  // If platform is 32 bit Xeon, floor memory size to multiple of 4.
+  if (address_mode_ == 32) {
+    size_mb_ = (size_mb_ / 4) * 4;
+    size_ = size_mb_ * kMegabyte;
+    logprintf(1, "Log: Flooring memory allocation to multiple of 4: %lldMB\n",
+              size_mb_);
+  }
+
+  // Check if this system is on the whitelist for supported systems.
+  if (!os_->IsSupported()) {
+    if (run_on_anything_) {
+      logprintf(1, "Log: Unsupported system. Running with reduced coverage.\n");
+      // This is ok, continue on.
+    } else {
+      logprintf(0, "Process Error: Unsupported system, "
+                   "no error reporting available\n");
+      logprintf(0, "Log: Command line option '-A' bypasses this error.\n");
+      bad_status();
+      return false;
+    }
+  }
+
+  return true;
+}
+
+// Allocates memory to run the test on
+bool Sat::AllocateMemory() {
+  // Allocate our test memory.
+  bool result = os_->AllocateTestMem(size_, paddr_base_);
+  if (!result) {
+    logprintf(0, "Process Error: failed to allocate memory\n");
+    bad_status();
+    return false;
+  }
+  return true;
+}
+
+// Sets up access to data patterns
+bool Sat::InitializePatterns() {
+  // Initialize pattern data.
+  patternlist_ = new PatternList();
+  if (!patternlist_) {
+    logprintf(0, "Process Error: failed to allocate patterns\n");
+    bad_status();
+    return false;
+  }
+  if (!patternlist_->Initialize()) {
+    logprintf(0, "Process Error: failed to initialize patternlist\n");
+    bad_status();
+    return false;
+  }
+  return true;
+}
+
+// Get any valid page, no tag specified.
+bool Sat::GetValid(struct page_entry *pe) {
+  return GetValid(pe, kDontCareTag);
+}
+
+
+// Fetch and return empty and full pages into the empty and full pools.
+bool Sat::GetValid(struct page_entry *pe, int32 tag) {
+  bool result = false;
+  // Get valid page depending on implementation.
+  if (pe_q_implementation_ == SAT_FINELOCK)
+    result = finelock_q_->GetValid(pe, tag);
+  else if (pe_q_implementation_ == SAT_ONELOCK)
+    result = valid_->PopRandom(pe);
+
+  if (result) {
+    pe->addr = os_->PrepareTestMem(pe->offset, page_length_);  // Map it.
+
+    // Tag this access and current pattern.
+    pe->ts = os_->GetTimestamp();
+    pe->lastpattern = pe->pattern;
+
+    return (pe->addr != 0);     // Return success or failure.
+  }
+  return false;
+}
+
+bool Sat::PutValid(struct page_entry *pe) {
+  if (pe->addr != 0)
+    os_->ReleaseTestMem(pe->addr, pe->offset, page_length_);  // Unmap the page.
+  pe->addr = 0;
+
+  // Put valid page depending on implementation.
+  if (pe_q_implementation_ == SAT_FINELOCK)
+    return finelock_q_->PutValid(pe);
+  else if (pe_q_implementation_ == SAT_ONELOCK)
+    return valid_->Push(pe);
+  else
+    return false;
+}
+
+// Get an empty page with any tag.
+bool Sat::GetEmpty(struct page_entry *pe) {
+  return GetEmpty(pe, kDontCareTag);
+}
+
+bool Sat::GetEmpty(struct page_entry *pe, int32 tag) {
+  bool result = false;
+  // Get empty page depending on implementation.
+  if (pe_q_implementation_ == SAT_FINELOCK)
+    result = finelock_q_->GetEmpty(pe, tag);
+  else if (pe_q_implementation_ == SAT_ONELOCK)
+    result = empty_->PopRandom(pe);
+
+  if (result) {
+    pe->addr = os_->PrepareTestMem(pe->offset, page_length_);  // Map it.
+    return (pe->addr != 0);     // Return success or failure.
+  }
+  return false;
+}
+
+bool Sat::PutEmpty(struct page_entry *pe) {
+  if (pe->addr != 0)
+    os_->ReleaseTestMem(pe->addr, pe->offset, page_length_);  // Unmap the page.
+  pe->addr = 0;
+
+  // Put empty page depending on implementation.
+  if (pe_q_implementation_ == SAT_FINELOCK)
+    return finelock_q_->PutEmpty(pe);
+  else if (pe_q_implementation_ == SAT_ONELOCK)
+    return empty_->Push(pe);
+  else
+    return false;
+}
+
+// Set up the bitmap of physical pages in case we want to see which pages were
+// accessed under this run of SAT.
+void Sat::AddrMapInit() {
+  if (!do_page_map_)
+    return;
+  // Find about how much physical mem is in the system.
+  // TODO(nsanders): Find some way to get the max
+  // and min phys addr in the system.
+  uint64 maxsize = os_->FindFreeMemSize() * 4;
+  sat_assert(maxsize != 0);
+
+  // Make a bitmask of this many pages. Assume that the memory is relatively
+  // zero based. This is true on x86, typically.
+  // This is one bit per page.
+  uint64 arraysize = maxsize / 4096 / 8;
+  unsigned char *bitmap = new unsigned char[arraysize];
+  sat_assert(bitmap);
+
+  // Mark every page as 0, not seen.
+  memset(bitmap, 0, arraysize);
+
+  page_bitmap_size_ = maxsize;
+  page_bitmap_ = bitmap;
+}
+
+// Add the 4k pages in this block to the array of pages SAT has seen.
+void Sat::AddrMapUpdate(struct page_entry *pe) {
+  if (!do_page_map_)
+    return;
+
+  // Go through 4k page blocks.
+  uint64 arraysize = page_bitmap_size_ / 4096 / 8;
+
+  char *base = reinterpret_cast<char*>(pe->addr);
+  for (int i = 0; i < page_length_; i += 4096) {
+    uint64 paddr = os_->VirtualToPhysical(base + i);
+
+    uint32 offset = paddr / 4096 / 8;
+    unsigned char mask = 1 << ((paddr / 4096) % 8);
+
+    if (offset >= arraysize) {
+      logprintf(0, "Process Error: Physical address %#llx is "
+                   "greater than expected %#llx.\n",
+                paddr, page_bitmap_size_);
+      sat_assert(0);
+    }
+    page_bitmap_[offset] |= mask;
+  }
+}
+
+// Print out the physical memory ranges that SAT has accessed.
+void Sat::AddrMapPrint() {
+  if (!do_page_map_)
+    return;
+
+  uint64 pages = page_bitmap_size_ / 4096;
+
+  uint64 last_page = 0;
+  bool valid_range = false;
+
+  logprintf(4, "Log: Printing tested physical ranges.\n");
+
+  for (uint64 i = 0; i < pages; i ++) {
+    int offset = i / 8;
+    unsigned char mask = 1 << (i % 8);
+
+    bool touched = page_bitmap_[offset] & mask;
+    if (touched && !valid_range) {
+      valid_range = true;
+      last_page = i * 4096;
+    } else if (!touched && valid_range) {
+      valid_range = false;
+      logprintf(4, "Log: %#016llx - %#016llx\n", last_page, (i * 4096) - 1);
+    }
+  }
+  logprintf(4, "Log: Done printing physical ranges.\n");
+}
+
+// Initializes page lists and fills pages with data patterns.
+bool Sat::InitializePages() {
+  int result = 1;
+  // Calculate needed page totals.
+  int64 neededpages = memory_threads_ +
+    invert_threads_ +
+    check_threads_ +
+    net_threads_ +
+    file_threads_;
+
+  // Empty-valid page ratio is adjusted depending on queue implementation.
+  // since fine-grain-locked queue keeps both valid and empty entries in the
+  // same queue and randomly traverse to find pages, the empty-valid ratio
+  // should be more even.
+  if (pe_q_implementation_ == SAT_FINELOCK)
+    freepages_ = pages_ / 5 * 2;  // Mark roughly 2/5 of all pages as Empty.
+  else
+    freepages_ = (pages_ / 100) + (2 * neededpages);
+
+  if (freepages_ < neededpages) {
+    logprintf(0, "Process Error: freepages < neededpages.\n");
+    logprintf(1, "Stats: Total: %lld, Needed: %lld, Marked free: %lld\n",
+              static_cast<int64>(pages_),
+              static_cast<int64>(neededpages),
+              static_cast<int64>(freepages_));
+    bad_status();
+    return false;
+  }
+
+  if (freepages_ >  pages_/2) {
+    logprintf(0, "Process Error: not enough pages for IO\n");
+    logprintf(1, "Stats: Total: %lld, Needed: %lld, Available: %lld\n",
+              static_cast<int64>(pages_),
+              static_cast<int64>(freepages_),
+              static_cast<int64>(pages_/2));
+    bad_status();
+    return false;
+  }
+  logprintf(12, "Log: Allocating pages, Total: %lld Free: %lld\n",
+            pages_,
+            freepages_);
+
+  // Initialize page locations.
+  for (int64 i = 0; i < pages_; i++) {
+    struct page_entry pe;
+    init_pe(&pe);
+    pe.offset = i * page_length_;
+    result &= PutEmpty(&pe);
+  }
+
+  if (!result) {
+    logprintf(0, "Process Error: while initializing empty_ list\n");
+    bad_status();
+    return false;
+  }
+
+  // Fill valid pages with test patterns.
+  // Use fill threads to do this.
+  WorkerStatus fill_status;
+  WorkerVector fill_vector;
+
+  logprintf(12, "Starting Fill threads: %d threads, %d pages\n",
+            fill_threads_, pages_);
+  // Initialize the fill threads.
+  for (int i = 0; i < fill_threads_; i++) {
+    FillThread *thread = new FillThread();
+    thread->InitThread(i, this, os_, patternlist_, &fill_status);
+    if (i != fill_threads_ - 1) {
+        logprintf(12, "Starting Fill Threads %d: %d pages\n",
+                  i, pages_ / fill_threads_);
+        thread->SetFillPages(pages_ / fill_threads_);
+      // The last thread finishes up all the leftover pages.
+    } else {
+      logprintf(12, "Starting Fill Threads %d: %d pages\n",
+                i, pages_ - pages_ / fill_threads_ * i);
+        thread->SetFillPages(pages_ - pages_ / fill_threads_ * i);
+    }
+    fill_vector.push_back(thread);
+  }
+
+  // Spawn the fill threads.
+  fill_status.Initialize();
+  for (WorkerVector::const_iterator it = fill_vector.begin();
+       it != fill_vector.end(); ++it)
+    (*it)->SpawnThread();
+
+  // Reap the finished fill threads.
+  for (WorkerVector::const_iterator it = fill_vector.begin();
+       it != fill_vector.end(); ++it) {
+    (*it)->JoinThread();
+    if ((*it)->GetStatus() != 1) {
+      logprintf(0, "Thread %d failed with status %d at %.2f seconds\n",
+                (*it)->ThreadID(), (*it)->GetStatus(),
+                (*it)->GetRunDurationUSec() * 1.0/1000000);
+      bad_status();
+      return false;
+    }
+    delete (*it);
+  }
+  fill_vector.clear();
+  fill_status.Destroy();
+  logprintf(12, "Log: Done filling pages.\n");
+  logprintf(12, "Log: Allocating pages.\n");
+
+  AddrMapInit();
+
+  // Initialize page locations.
+  for (int64 i = 0; i < pages_; i++) {
+    struct page_entry pe;
+    // Only get valid pages with uninitialized tags here.
+    char buf[256];
+    if (GetValid(&pe, kInvalidTag)) {
+      int64 paddr = os_->VirtualToPhysical(pe.addr);
+      int32 region = os_->FindRegion(paddr);
+
+      os_->FindDimm(paddr, buf, sizeof(buf));
+      if (i < 256) {
+        logprintf(12, "Log: address: %#llx, %s\n", paddr, buf);
+      }
+      region_[region]++;
+      pe.paddr = paddr;
+      pe.tag = 1 << region;
+      region_mask_ |= pe.tag;
+
+      // Generate a physical region map
+      AddrMapUpdate(&pe);
+
+      // Note: this does not allocate free pages among all regions
+      // fairly. However, with large enough (thousands) random number
+      // of pages being marked free in each region, the free pages
+      // count in each region end up pretty balanced.
+      if (i < freepages_) {
+        result &= PutEmpty(&pe);
+      } else {
+        result &= PutValid(&pe);
+      }
+    } else {
+      logprintf(0, "Log: didn't tag all pages. %d - %d = %d\n",
+                pages_, i, pages_ - i);
+      return false;
+    }
+  }
+  logprintf(12, "Log: Done allocating pages.\n");
+
+  AddrMapPrint();
+
+  for (int i = 0; i < 32; i++) {
+    if (region_mask_ & (1 << i)) {
+      region_count_++;
+      logprintf(12, "Log: Region %d: %d.\n", i, region_[i]);
+    }
+  }
+  logprintf(5, "Log: Region mask: 0x%x\n", region_mask_);
+
+  return true;
+}
+
+// Print SAT version info.
+bool Sat::PrintVersion() {
+  logprintf(1, "Stats: SAT revision %s, %d bit binary\n",
+            kVersion, address_mode_);
+  logprintf(5, "Log: %s from %s\n", Timestamp(), BuildChangelist());
+
+  return true;
+}
+
+
+// Initializes the resources that SAT needs to run.
+// This needs to be called before Run(), and after ParseArgs().
+// Returns true on success, false on error, and will exit() on help message.
+bool Sat::Initialize() {
+  g_sat = this;
+
+  // Initializes sync'd log file to ensure output is saved.
+  if (!InitializeLogfile())
+    return false;
+  Logger::GlobalLogger()->StartThread();
+
+  logprintf(5, "Log: Commandline - %s\n", cmdline_.c_str());
+  PrintVersion();
+
+  std::map<std::string, std::string> options;
+
+  GoogleOsOptions(&options);
+
+  // Initialize OS/Hardware interface.
+  os_ = OsLayerFactory(options);
+  if (!os_) {
+    bad_status();
+    return false;
+  }
+
+  if (min_hugepages_mbytes_ > 0)
+    os_->SetMinimumHugepagesSize(min_hugepages_mbytes_ * kMegabyte);
+
+  if (!os_->Initialize()) {
+    logprintf(0, "Process Error: Failed to initialize OS layer\n");
+    bad_status();
+    delete os_;
+    return false;
+  }
+
+  // Checks that OS/Build/Platform is supported.
+  if (!CheckEnvironment())
+    return false;
+
+  if (error_injection_)
+    os_->set_error_injection(true);
+
+  // Run SAT in monitor only mode, do not continue to allocate resources.
+  if (monitor_mode_) {
+    logprintf(5, "Log: Running in monitor-only mode. "
+                 "Will not allocate any memory nor run any stress test. "
+                 "Only polling ECC errors.\n");
+    return true;
+  }
+
+  // Allocate the memory to test.
+  if (!AllocateMemory())
+    return false;
+
+  logprintf(5, "Stats: Starting SAT, %dM, %d seconds\n",
+            static_cast<int>(size_/kMegabyte),
+            runtime_seconds_);
+
+  if (!InitializePatterns())
+    return false;
+
+  // Initialize memory allocation.
+  pages_ = size_ / page_length_;
+
+  // Allocate page queue depending on queue implementation switch.
+  if (pe_q_implementation_ == SAT_FINELOCK) {
+      finelock_q_ = new FineLockPEQueue(pages_, page_length_);
+      if (finelock_q_ == NULL)
+        return false;
+      finelock_q_->set_os(os_);
+      os_->set_err_log_callback(finelock_q_->get_err_log_callback());
+  } else if (pe_q_implementation_ == SAT_ONELOCK) {
+      empty_ = new PageEntryQueue(pages_);
+      valid_ = new PageEntryQueue(pages_);
+      if ((empty_ == NULL) || (valid_ == NULL))
+        return false;
+  }
+
+  if (!InitializePages()) {
+    logprintf(0, "Process Error: Initialize Pages failed\n");
+    return false;
+  }
+
+  return true;
+}
+
+// Constructor and destructor.
+Sat::Sat() {
+  // Set defaults, command line might override these.
+  runtime_seconds_ = 20;
+  page_length_ = kSatPageSize;
+  disk_pages_ = kSatDiskPage;
+  pages_ = 0;
+  size_mb_ = 0;
+  size_ = size_mb_ * kMegabyte;
+  min_hugepages_mbytes_ = 0;
+  freepages_ = 0;
+  paddr_base_ = 0;
+
+  user_break_ = false;
+  verbosity_ = 8;
+  Logger::GlobalLogger()->SetVerbosity(verbosity_);
+  strict_ = 1;
+  warm_ = 0;
+  run_on_anything_ = 0;
+  use_logfile_ = 0;
+  logfile_ = 0;
+  // Detect 32/64 bit binary.
+  void *pvoid = 0;
+  address_mode_ = sizeof(pvoid) * 8;
+  error_injection_ = false;
+  crazy_error_injection_ = false;
+  max_errorcount_ = 0;  // Zero means no early exit.
+  stop_on_error_ = false;
+  error_poll_ = true;
+  findfiles_ = false;
+
+  do_page_map_ = false;
+  page_bitmap_ = 0;
+  page_bitmap_size_ = 0;
+
+  // Cache coherency data initialization.
+  cc_test_ = false;         // Flag to trigger cc threads.
+  cc_cacheline_count_ = 2;  // Two datastructures of cache line size.
+  cc_inc_count_ = 1000;     // Number of times to increment the shared variable.
+  cc_cacheline_data_ = 0;   // Cache Line size datastructure.
+
+  sat_assert(0 == pthread_mutex_init(&worker_lock_, NULL));
+  file_threads_ = 0;
+  net_threads_ = 0;
+  listen_threads_ = 0;
+  // Default to autodetect number of cpus, and run that many threads.
+  memory_threads_ = -1;
+  invert_threads_ = 0;
+  fill_threads_ = 8;
+  check_threads_ = 0;
+  cpu_stress_threads_ = 0;
+  disk_threads_ = 0;
+  total_threads_ = 0;
+
+  region_mask_ = 0;
+  region_count_ = 0;
+  for (int i = 0; i < 32; i++) {
+    region_[i] = 0;
+  }
+  region_mode_ = 0;
+
+  errorcount_ = 0;
+  statuscount_ = 0;
+
+  valid_ = 0;
+  empty_ = 0;
+  finelock_q_ = 0;
+  // Default to use fine-grain lock for better performance.
+  pe_q_implementation_ = SAT_FINELOCK;
+
+  os_ = 0;
+  patternlist_ = 0;
+  logfilename_[0] = 0;
+
+  read_block_size_ = 512;
+  write_block_size_ = -1;
+  segment_size_ = -1;
+  cache_size_ = -1;
+  blocks_per_segment_ = -1;
+  read_threshold_ = -1;
+  write_threshold_ = -1;
+  non_destructive_ = 1;
+  monitor_mode_ = 0;
+  tag_mode_ = 0;
+  random_threads_ = 0;
+
+  pause_delay_ = 600;
+  pause_duration_ = 15;
+}
+
+// Destructor.
+Sat::~Sat() {
+  // We need to have called Cleanup() at this point.
+  // We should probably enforce this.
+}
+
+
+#define ARG_KVALUE(argument, variable, value)         \
+  if (!strcmp(argv[i], argument)) {                   \
+    variable = value;                                 \
+    continue;                                         \
+  }
+
+#define ARG_IVALUE(argument, variable)                \
+  if (!strcmp(argv[i], argument)) {                   \
+    i++;                                              \
+    if (i < argc)                                     \
+      variable = strtoull(argv[i], NULL, 0);          \
+    continue;                                         \
+  }
+
+#define ARG_SVALUE(argument, variable)                     \
+  if (!strcmp(argv[i], argument)) {                        \
+    i++;                                                   \
+    if (i < argc)                                          \
+      snprintf(variable, sizeof(variable), "%s", argv[i]); \
+    continue;                                              \
+  }
+
+// Configures SAT from command line arguments.
+// This will call exit() given a request for
+// self-documentation or unexpected args.
+bool Sat::ParseArgs(int argc, char **argv) {
+  int i;
+  uint64 filesize = page_length_ * disk_pages_;
+
+  // Parse each argument.
+  for (i = 1; i < argc; i++) {
+    // Switch to fall back to corase-grain-lock queue. (for benchmarking)
+    ARG_KVALUE("--coarse_grain_lock", pe_q_implementation_, SAT_ONELOCK);
+
+    // Set number of megabyte to use.
+    ARG_IVALUE("-M", size_mb_);
+
+    // Set minimum megabytes of hugepages to require.
+    ARG_IVALUE("-H", min_hugepages_mbytes_);
+
+    // Set number of seconds to run.
+    ARG_IVALUE("-s", runtime_seconds_);
+
+    // Set number of memory copy threads.
+    ARG_IVALUE("-m", memory_threads_);
+
+    // Set number of memory invert threads.
+    ARG_IVALUE("-i", invert_threads_);
+
+    // Set number of check-only threads.
+    ARG_IVALUE("-c", check_threads_);
+
+    // Set number of cache line size datastructures.
+    ARG_IVALUE("--cc_inc_count", cc_inc_count_);
+
+    // Set number of cache line size datastructures
+    ARG_IVALUE("--cc_line_count", cc_cacheline_count_);
+
+    // Flag set when cache coherency tests need to be run
+    ARG_KVALUE("--cc_test", cc_test_, 1);
+
+    // Set number of CPU stress threads.
+    ARG_IVALUE("-C", cpu_stress_threads_);
+
+    // Set logfile name.
+    ARG_SVALUE("-l", logfilename_);
+
+    // Verbosity level.
+    ARG_IVALUE("-v", verbosity_);
+
+    // Set maximum number of errors to collect. Stop running after this many.
+    ARG_IVALUE("--max_errors", max_errorcount_);
+
+    // Set pattern block size.
+    ARG_IVALUE("-p", page_length_);
+
+    // Set pattern block size.
+    ARG_IVALUE("--filesize", filesize);
+
+    // NUMA options.
+    ARG_KVALUE("--local_numa", region_mode_, kLocalNuma);
+    ARG_KVALUE("--remote_numa", region_mode_, kRemoteNuma);
+
+    // Autodetect tempfile locations.
+    ARG_KVALUE("--findfiles", findfiles_, 1);
+
+    // Inject errors to force miscompare code paths
+    ARG_KVALUE("--force_errors", error_injection_, true);
+    ARG_KVALUE("--force_errors_like_crazy", crazy_error_injection_, true);
+    if (crazy_error_injection_)
+      error_injection_ = true;
+
+    // Stop immediately on any arror, for debugging HW problems.
+    ARG_KVALUE("--stop_on_errors", stop_on_error_, 1);
+
+    // Don't use internal error polling, allow external detection.
+    ARG_KVALUE("--no_errors", error_poll_, 0);
+
+    // Never check data as you go.
+    ARG_KVALUE("-F", strict_, 0);
+
+    // Warm the cpu as you go.
+    ARG_KVALUE("-W", warm_, 1);
+
+    // Allow runnign on unknown systems with base unimplemented OsLayer
+    ARG_KVALUE("-A", run_on_anything_, 1);
+
+    // Size of read blocks for disk test.
+    ARG_IVALUE("--read-block-size", read_block_size_);
+
+    // Size of write blocks for disk test.
+    ARG_IVALUE("--write-block-size", write_block_size_);
+
+    // Size of segment for disk test.
+    ARG_IVALUE("--segment-size", segment_size_);
+
+    // Size of disk cache size for disk test.
+    ARG_IVALUE("--cache-size", cache_size_);
+
+    // Number of blocks to test per segment.
+    ARG_IVALUE("--blocks-per-segment", blocks_per_segment_);
+
+    // Maximum time a block read should take before warning.
+    ARG_IVALUE("--read-threshold", read_threshold_);
+
+    // Maximum time a block write should take before warning.
+    ARG_IVALUE("--write-threshold", write_threshold_);
+
+    // Do not write anything to disk in the disk test.
+    ARG_KVALUE("--destructive", non_destructive_, 0);
+
+    // Run SAT in monitor mode. No test load at all.
+    ARG_KVALUE("--monitor_mode", monitor_mode_, true);
+
+    // Run SAT in address mode. Tag all cachelines by virt addr.
+    ARG_KVALUE("--tag_mode", tag_mode_, true);
+
+    // Dump range map of tested pages..
+    ARG_KVALUE("--do_page_map", do_page_map_, true);
+
+    // Specify the physical address base to test.
+    ARG_IVALUE("--paddr_base", paddr_base_);
+
+    // Specify the frequency for power spikes.
+    ARG_IVALUE("--pause_delay", pause_delay_);
+
+    // Specify the duration of each pause (for power spikes).
+    ARG_IVALUE("--pause_duration", pause_duration_);
+
+    // Disk device names
+    if (!strcmp(argv[i], "-d")) {
+      i++;
+      if (i < argc) {
+        disk_threads_++;
+        diskfilename_.push_back(string(argv[i]));
+        blocktables_.push_back(new DiskBlockTable());
+      }
+      continue;
+    }
+
+    // Set number of disk random threads for each disk write thread.
+    ARG_IVALUE("--random-threads", random_threads_);
+
+    // Set a tempfile to use in a file thread.
+    if (!strcmp(argv[i], "-f")) {
+      i++;
+      if (i < argc) {
+        file_threads_++;
+        filename_.push_back(string(argv[i]));
+      }
+      continue;
+    }
+
+    // Set a hostname to use in a network thread.
+    if (!strcmp(argv[i], "-n")) {
+      i++;
+      if (i < argc) {
+        net_threads_++;
+        ipaddrs_.push_back(string(argv[i]));
+      }
+      continue;
+    }
+
+    // Run threads that listen for incoming SAT net connections.
+    ARG_KVALUE("--listen", listen_threads_, 1);
+
+    if (CheckGoogleSpecificArgs(argc, argv, &i)) {
+      continue;
+    }
+
+    // Default:
+    PrintVersion();
+    PrintHelp();
+    if (strcmp(argv[i], "-h") && strcmp(argv[i], "--help")) {
+      printf("\n Unknown argument %s\n", argv[i]);
+      bad_status();
+      exit(1);
+    }
+    // Forget it, we printed the help, just bail.
+    // We don't want to print test status, or any log parser stuff.
+    exit(0);
+  }
+
+  Logger::GlobalLogger()->SetVerbosity(verbosity_);
+
+  // Update relevant data members with parsed input.
+  // Translate MB into bytes.
+  size_ = static_cast<int64>(size_mb_) * kMegabyte;
+
+  // Set logfile flag.
+  if (strcmp(logfilename_, ""))
+    use_logfile_ = 1;
+  // Checks valid page length.
+  if (page_length_ &&
+      !(page_length_ & (page_length_ - 1)) &&
+      (page_length_ > 1023)) {
+    // Prints if we have changed from default.
+    if (page_length_ != kSatPageSize)
+      logprintf(12, "Log: Updating page size to %d\n", page_length_);
+  } else {
+    // Revert to default page length.
+    logprintf(6, "Process Error: "
+              "Invalid page size %d\n", page_length_);
+    page_length_ = kSatPageSize;
+    return false;
+  }
+
+  // Set disk_pages_ if filesize or page size changed.
+  if (filesize != static_cast<uint64>(page_length_) *
+                  static_cast<uint64>(disk_pages_)) {
+    disk_pages_ = filesize / page_length_;
+    if (disk_pages_ == 0)
+      disk_pages_ = 1;
+  }
+
+  // Print each argument.
+  for (int i = 0; i < argc; i++) {
+    if (i)
+      cmdline_ += " ";
+    cmdline_ += argv[i];
+  }
+
+  return true;
+}
+
+void Sat::PrintHelp() {
+  printf("Usage: ./sat(32|64) [options]\n"
+         " -M mbytes        megabytes of ram to test\n"
+         " -H mbytes        minimum megabytes of hugepages to require\n"
+         " -s seconds       number of seconds to run\n"
+         " -m threads       number of memory copy threads to run\n"
+         " -i threads       number of memory invert threads to run\n"
+         " -C threads       number of memory CPU stress threads to run\n"
+         " --findfiles      find locations to do disk IO automatically\n"
+         " -d device        add a direct write disk thread with block "
+         "device (or file) 'device'\n"
+         " -f filename      add a disk thread with "
+         "tempfile 'filename'\n"
+         " -l logfile       log output to file 'logfile'\n"
+         " --max_errors n   exit early after finding 'n' errors\n"
+         " -v level         verbosity (0-20), default is 8\n"
+         " -W               Use more CPU-stressful memory copy\n"
+         " -A               run in degraded mode on incompatible systems\n"
+         " -p pagesize      size in bytes of memory chunks\n"
+         " --filesize size  size of disk IO tempfiles\n"
+         " -n ipaddr        add a network thread connecting to "
+         "system at 'ipaddr'\n"
+         " --listen         run a thread to listen for and respond "
+         "to network threads.\n"
+         " --no_errors      run without checking for ECC or other errors\n"
+         " --force_errors   inject false errors to test error handling\n"
+         " --force_errors_like_crazy   inject a lot of false errors "
+         "to test error handling\n"
+         " -F               don't result check each transaction\n"
+         " --stop_on_errors  Stop after finding the first error.\n"
+         " --read-block-size     size of block for reading (-d)\n"
+         " --write-block-size    size of block for writing (-d). If not "
+         "defined, the size of block for writing will be defined as the "
+         "size of block for reading\n"
+         " --segment-size   size of segments to split disk into (-d)\n"
+         " --cache-size     size of disk cache (-d)\n"
+         " --blocks-per-segment  number of blocks to read/write per "
+         "segment per iteration (-d)\n"
+         " --read-threshold      maximum time (in us) a block read should "
+         "take (-d)\n"
+         " --write-threshold     maximum time (in us) a block write "
+         "should take (-d)\n"
+         " --random-threads      number of random threads for each disk "
+         "write thread (-d)\n"
+         " --destructive    write/wipe disk partition (-d)\n"
+         " --monitor_mode   only do ECC error polling, no stress load.\n"
+         " --cc_test        do the cache coherency testing\n"
+         " --cc_inc_count   number of times to increment the "
+         "cacheline's member\n"
+         " --cc_line_count  number of cache line sized datastructures "
+         "to allocate for the cache coherency threads to operate\n"
+         " --paddr_base     allocate memory starting from this address\n"
+         " --pause_delay    delay (in seconds) between power spikes\n"
+         " --pause_duration duration (in seconds) of each pause\n"
+         " --local_numa : choose memory regions associated with "
+         "each CPU to be tested by that CPU\n"
+         " --remote_numa : choose memory regions not associated with "
+         "each CPU to be tested by that CPU\n");
+}
+
+bool Sat::CheckGoogleSpecificArgs(int argc, char **argv, int *i) {
+  // Do nothing, no google-specific argument on public stressapptest
+  return false;
+}
+
+void Sat::GoogleOsOptions(std::map<std::string, std::string> *options) {
+  // Do nothing, no OS-specific argument on public stressapptest
+}
+
+// Launch the SAT task threads. Returns 0 on error.
+void Sat::InitializeThreads() {
+  // Memory copy threads.
+  AcquireWorkerLock();
+
+  logprintf(12, "Log: Starting worker threads\n");
+  WorkerVector *memory_vector = new WorkerVector();
+
+  // Error polling thread.
+  // This may detect ECC corrected errors, disk problems, or
+  // any other errors normally hidden from userspace.
+  WorkerVector *error_vector = new WorkerVector();
+  if (error_poll_) {
+    ErrorPollThread *thread = new ErrorPollThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &continuous_status_);
+
+    error_vector->insert(error_vector->end(), thread);
+  } else {
+    logprintf(5, "Log: Skipping error poll thread due to --no_errors flag\n");
+  }
+  workers_map_.insert(make_pair(kErrorType, error_vector));
+
+  // Only start error poll threads for monitor-mode SAT,
+  // skip all other types of worker threads.
+  if (monitor_mode_) {
+    ReleaseWorkerLock();
+    return;
+  }
+
+  for (int i = 0; i < memory_threads_; i++) {
+    CopyThread *thread = new CopyThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &power_spike_status_);
+
+    if ((region_count_ > 1) && (region_mode_)) {
+      int32 region = region_find(i % region_count_);
+      cpu_set_t *cpuset = os_->FindCoreMask(region);
+      sat_assert(cpuset);
+      if (region_mode_ == kLocalNuma) {
+        // Choose regions associated with this CPU.
+        thread->set_cpu_mask(cpuset);
+        thread->set_tag(1 << region);
+      } else if (region_mode_ == kRemoteNuma) {
+        // Choose regions not associated with this CPU..
+        thread->set_cpu_mask(cpuset);
+        thread->set_tag(region_mask_ & ~(1 << region));
+      }
+    } else {
+      cpu_set_t available_cpus;
+      thread->AvailableCpus(&available_cpus);
+      int cores = cpuset_count(&available_cpus);
+      // Don't restrict thread location if we have more than one
+      // thread per core. Not so good for performance.
+      if (cpu_stress_threads_ + memory_threads_ <= cores) {
+        // Place a thread on alternating cores first.
+        // This assures interleaved core use with no overlap.
+        int nthcore = i;
+        int nthbit = (((2 * nthcore) % cores) +
+                      (((2 * nthcore) / cores) % 2)) % cores;
+        cpu_set_t all_cores;
+        cpuset_set_ab(&all_cores, 0, cores);
+        if (!cpuset_isequal(&available_cpus, &all_cores)) {
+          // We are assuming the bits are contiguous.
+          // Complain if this is not so.
+          logprintf(0, "Log: cores = %s, expected %s\n",
+                    cpuset_format(&available_cpus).c_str(),
+                    cpuset_format(&all_cores).c_str());
+        }
+
+        // Set thread affinity.
+        thread->set_cpu_mask_to_cpu(nthbit);
+      }
+    }
+    memory_vector->insert(memory_vector->end(), thread);
+  }
+  workers_map_.insert(make_pair(kMemoryType, memory_vector));
+
+  // File IO threads.
+  WorkerVector *fileio_vector = new WorkerVector();
+  for (int i = 0; i < file_threads_; i++) {
+    FileThread *thread = new FileThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &power_spike_status_);
+    thread->SetFile(filename_[i].c_str());
+    // Set disk threads high priority. They don't take much processor time,
+    // but blocking them will delay disk IO.
+    thread->SetPriority(WorkerThread::High);
+
+    fileio_vector->insert(fileio_vector->end(), thread);
+  }
+  workers_map_.insert(make_pair(kFileIOType, fileio_vector));
+
+  // Net IO threads.
+  WorkerVector *netio_vector = new WorkerVector();
+  WorkerVector *netslave_vector = new WorkerVector();
+  if (listen_threads_ > 0) {
+    // Create a network slave thread. This listens for connections.
+    NetworkListenThread *thread = new NetworkListenThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &continuous_status_);
+
+    netslave_vector->insert(netslave_vector->end(), thread);
+  }
+  for (int i = 0; i < net_threads_; i++) {
+    NetworkThread *thread = new NetworkThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &continuous_status_);
+    thread->SetIP(ipaddrs_[i].c_str());
+
+    netio_vector->insert(netio_vector->end(), thread);
+  }
+  workers_map_.insert(make_pair(kNetIOType, netio_vector));
+  workers_map_.insert(make_pair(kNetSlaveType, netslave_vector));
+
+  // Result check threads.
+  WorkerVector *check_vector = new WorkerVector();
+  for (int i = 0; i < check_threads_; i++) {
+    CheckThread *thread = new CheckThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &continuous_status_);
+
+    check_vector->insert(check_vector->end(), thread);
+  }
+  workers_map_.insert(make_pair(kCheckType, check_vector));
+
+  // Memory invert threads.
+  logprintf(12, "Log: Starting invert threads\n");
+  WorkerVector *invert_vector = new WorkerVector();
+  for (int i = 0; i < invert_threads_; i++) {
+    InvertThread *thread = new InvertThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &continuous_status_);
+
+    invert_vector->insert(invert_vector->end(), thread);
+  }
+  workers_map_.insert(make_pair(kInvertType, invert_vector));
+
+  // Disk stress threads.
+  WorkerVector *disk_vector = new WorkerVector();
+  WorkerVector *random_vector = new WorkerVector();
+  logprintf(12, "Log: Starting disk stress threads\n");
+  for (int i = 0; i < disk_threads_; i++) {
+    // Creating write threads
+    DiskThread *thread = new DiskThread(blocktables_[i]);
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &power_spike_status_);
+    thread->SetDevice(diskfilename_[i].c_str());
+    if (thread->SetParameters(read_block_size_, write_block_size_,
+                              segment_size_, cache_size_,
+                              blocks_per_segment_,
+                              read_threshold_, write_threshold_,
+                              non_destructive_)) {
+      disk_vector->insert(disk_vector->end(), thread);
+    } else {
+      logprintf(12, "Log: DiskThread::SetParameters() failed\n");
+      delete thread;
+    }
+
+    for (int j = 0; j < random_threads_; j++) {
+      // Creating random threads
+      RandomDiskThread *rthread = new RandomDiskThread(blocktables_[i]);
+      rthread->InitThread(total_threads_++, this, os_, patternlist_,
+                          &power_spike_status_);
+      rthread->SetDevice(diskfilename_[i].c_str());
+      if (rthread->SetParameters(read_block_size_, write_block_size_,
+                                 segment_size_, cache_size_,
+                                 blocks_per_segment_,
+                                 read_threshold_, write_threshold_,
+                                 non_destructive_)) {
+        random_vector->insert(random_vector->end(), rthread);
+      } else {
+      logprintf(12, "Log: RandomDiskThread::SetParameters() failed\n");
+        delete rthread;
+      }
+    }
+  }
+
+  workers_map_.insert(make_pair(kDiskType, disk_vector));
+  workers_map_.insert(make_pair(kRandomDiskType, random_vector));
+
+  // CPU stress threads.
+  WorkerVector *cpu_vector = new WorkerVector();
+  logprintf(12, "Log: Starting cpu stress threads\n");
+  for (int i = 0; i < cpu_stress_threads_; i++) {
+    CpuStressThread *thread = new CpuStressThread();
+    thread->InitThread(total_threads_++, this, os_, patternlist_,
+                       &continuous_status_);
+
+    // Don't restrict thread location if we have more than one
+    // thread per core. Not so good for performance.
+    cpu_set_t available_cpus;
+    thread->AvailableCpus(&available_cpus);
+    int cores = cpuset_count(&available_cpus);
+    if (cpu_stress_threads_ + memory_threads_ <= cores) {
+      // Place a thread on alternating cores first.
+      // Go in reverse order for CPU stress threads. This assures interleaved
+      // core use with no overlap.
+      int nthcore = (cores - 1) - i;
+      int nthbit = (((2 * nthcore) % cores) +
+                    (((2 * nthcore) / cores) % 2)) % cores;
+      cpu_set_t all_cores;
+      cpuset_set_ab(&all_cores, 0, cores);
+      if (!cpuset_isequal(&available_cpus, &all_cores)) {
+        logprintf(0, "Log: cores = %s, expected %s\n",
+                  cpuset_format(&available_cpus).c_str(),
+                  cpuset_format(&all_cores).c_str());
+      }
+
+      // Set thread affinity.
+      thread->set_cpu_mask_to_cpu(nthbit);
+    }
+
+
+    cpu_vector->insert(cpu_vector->end(), thread);
+  }
+  workers_map_.insert(make_pair(kCPUType, cpu_vector));
+
+  // CPU Cache Coherency Threads - one for each core available.
+  if (cc_test_) {
+    WorkerVector *cc_vector = new WorkerVector();
+    logprintf(12, "Log: Starting cpu cache coherency threads\n");
+
+    // Allocate the shared datastructure to be worked on by the threads.
+    cc_cacheline_data_ = reinterpret_cast<cc_cacheline_data*>(
+        malloc(sizeof(cc_cacheline_data) * cc_cacheline_count_));
+    sat_assert(cc_cacheline_data_ != NULL);
+
+    // Initialize the strucutre.
+    memset(cc_cacheline_data_, 0,
+           sizeof(cc_cacheline_data) * cc_cacheline_count_);
+
+    int num_cpus = CpuCount();
+    // Allocate all the nums once so that we get a single chunk
+    // of contiguous memory.
+    int *num;
+    int err_result = posix_memalign(
+        reinterpret_cast<void**>(&num),
+        kCacheLineSize, sizeof(*num) * num_cpus * cc_cacheline_count_);
+    sat_assert(err_result == 0);
+
+    int cline;
+    for (cline = 0; cline < cc_cacheline_count_; cline++) {
+      memset(num, 0, sizeof(num_cpus) * num_cpus);
+      cc_cacheline_data_[cline].num = num;
+      num += num_cpus;
+    }
+
+    int tnum;
+    for (tnum = 0; tnum < num_cpus; tnum++) {
+      CpuCacheCoherencyThread *thread =
+          new CpuCacheCoherencyThread(cc_cacheline_data_, cc_cacheline_count_,
+                                      tnum, cc_inc_count_);
+      thread->InitThread(total_threads_++, this, os_, patternlist_,
+                         &continuous_status_);
+      // Pin the thread to a particular core.
+      thread->set_cpu_mask_to_cpu(tnum);
+
+      // Insert the thread into the vector.
+      cc_vector->insert(cc_vector->end(), thread);
+    }
+    workers_map_.insert(make_pair(kCCType, cc_vector));
+  }
+  ReleaseWorkerLock();
+}
+
+// Return the number of cpus actually present in the machine.
+int Sat::CpuCount() {
+  return sysconf(_SC_NPROCESSORS_CONF);
+}
+
+// Notify and reap worker threads.
+void Sat::JoinThreads() {
+  logprintf(12, "Log: Joining worker threads\n");
+  power_spike_status_.StopWorkers();
+  continuous_status_.StopWorkers();
+
+  AcquireWorkerLock();
+  for (WorkerMap::const_iterator map_it = workers_map_.begin();
+       map_it != workers_map_.end(); ++map_it) {
+    for (WorkerVector::const_iterator it = map_it->second->begin();
+         it != map_it->second->end(); ++it) {
+      logprintf(12, "Log: Joining thread %d\n", (*it)->ThreadID());
+      (*it)->JoinThread();
+    }
+  }
+  ReleaseWorkerLock();
+
+  QueueStats();
+
+  // Finish up result checking.
+  // Spawn 4 check threads to minimize check time.
+  logprintf(12, "Log: Finished countdown, begin to result check\n");
+  WorkerStatus reap_check_status;
+  WorkerVector reap_check_vector;
+
+  // No need for check threads for monitor mode.
+  if (!monitor_mode_) {
+    // Initialize the check threads.
+    for (int i = 0; i < fill_threads_; i++) {
+      CheckThread *thread = new CheckThread();
+      thread->InitThread(total_threads_++, this, os_, patternlist_,
+                         &reap_check_status);
+      logprintf(12, "Log: Finished countdown, begin to result check\n");
+      reap_check_vector.push_back(thread);
+    }
+  }
+
+  reap_check_status.Initialize();
+  // Check threads should be marked to stop ASAP.
+  reap_check_status.StopWorkers();
+
+  // Spawn the check threads.
+  for (WorkerVector::const_iterator it = reap_check_vector.begin();
+       it != reap_check_vector.end(); ++it) {
+    logprintf(12, "Log: Spawning thread %d\n", (*it)->ThreadID());
+    (*it)->SpawnThread();
+  }
+
+  // Join the check threads.
+  for (WorkerVector::const_iterator it = reap_check_vector.begin();
+       it != reap_check_vector.end(); ++it) {
+    logprintf(12, "Log: Joining thread %d\n", (*it)->ThreadID());
+    (*it)->JoinThread();
+  }
+
+  // Reap all children. Stopped threads should have already ended.
+  // Result checking threads will end when they have finished
+  // result checking.
+  logprintf(12, "Log: Join all outstanding threads\n");
+
+  // Find all errors.
+  errorcount_ = GetTotalErrorCount();
+
+  AcquireWorkerLock();
+  for (WorkerMap::const_iterator map_it = workers_map_.begin();
+       map_it != workers_map_.end(); ++map_it) {
+    for (WorkerVector::const_iterator it = map_it->second->begin();
+         it != map_it->second->end(); ++it) {
+      logprintf(12, "Log: Reaping thread status %d\n", (*it)->ThreadID());
+      if ((*it)->GetStatus() != 1) {
+        logprintf(0, "Process Error: Thread %d failed with status %d at "
+                  "%.2f seconds\n",
+                  (*it)->ThreadID(), (*it)->GetStatus(),
+                  (*it)->GetRunDurationUSec()*1.0/1000000);
+        bad_status();
+      }
+      int priority = 12;
+      if ((*it)->GetErrorCount())
+        priority = 5;
+      logprintf(priority, "Log: Thread %d found %lld hardware incidents\n",
+                (*it)->ThreadID(), (*it)->GetErrorCount());
+    }
+  }
+  ReleaseWorkerLock();
+
+
+  // Add in any errors from check threads.
+  for (WorkerVector::const_iterator it = reap_check_vector.begin();
+       it != reap_check_vector.end(); ++it) {
+    logprintf(12, "Log: Reaping thread status %d\n", (*it)->ThreadID());
+    if ((*it)->GetStatus() != 1) {
+      logprintf(0, "Process Error: Thread %d failed with status %d at "
+                "%.2f seconds\n",
+                (*it)->ThreadID(), (*it)->GetStatus(),
+                (*it)->GetRunDurationUSec()*1.0/1000000);
+      bad_status();
+    }
+    errorcount_ += (*it)->GetErrorCount();
+    int priority = 12;
+    if ((*it)->GetErrorCount())
+      priority = 5;
+    logprintf(priority, "Log: Thread %d found %lld hardware incidents\n",
+              (*it)->ThreadID(), (*it)->GetErrorCount());
+    delete (*it);
+  }
+  reap_check_vector.clear();
+  reap_check_status.Destroy();
+}
+
+// Print queuing information.
+void Sat::QueueStats() {
+  finelock_q_->QueueAnalysis();
+}
+
+void Sat::AnalysisAllStats() {
+  float max_runtime_sec = 0.;
+  float total_data = 0.;
+  float total_bandwidth = 0.;
+  float thread_runtime_sec = 0.;
+
+  for (WorkerMap::const_iterator map_it = workers_map_.begin();
+       map_it != workers_map_.end(); ++map_it) {
+    for (WorkerVector::const_iterator it = map_it->second->begin();
+         it != map_it->second->end(); ++it) {
+      thread_runtime_sec = (*it)->GetRunDurationUSec()*1.0/1000000;
+      total_data += (*it)->GetMemoryCopiedData();
+      total_data += (*it)->GetDeviceCopiedData();
+      if (thread_runtime_sec > max_runtime_sec) {
+        max_runtime_sec = thread_runtime_sec;
+      }
+    }
+  }
+
+  total_bandwidth = total_data / max_runtime_sec;
+
+  logprintf(0, "Stats: Completed: %.2fM in %.2fs %.2fMB/s, "
+            "with %d hardware incidents, %d errors\n",
+            total_data,
+            max_runtime_sec,
+            total_bandwidth,
+            errorcount_,
+            statuscount_);
+}
+
+void Sat::MemoryStats() {
+  float memcopy_data = 0.;
+  float memcopy_bandwidth = 0.;
+  WorkerMap::const_iterator mem_it = workers_map_.find(
+      static_cast<int>(kMemoryType));
+  WorkerMap::const_iterator file_it = workers_map_.find(
+      static_cast<int>(kFileIOType));
+  sat_assert(mem_it != workers_map_.end());
+  sat_assert(file_it != workers_map_.end());
+  for (WorkerVector::const_iterator it = mem_it->second->begin();
+       it != mem_it->second->end(); ++it) {
+    memcopy_data += (*it)->GetMemoryCopiedData();
+    memcopy_bandwidth += (*it)->GetMemoryBandwidth();
+  }
+  for (WorkerVector::const_iterator it = file_it->second->begin();
+       it != file_it->second->end(); ++it) {
+    memcopy_data += (*it)->GetMemoryCopiedData();
+    memcopy_bandwidth += (*it)->GetMemoryBandwidth();
+  }
+  GoogleMemoryStats(&memcopy_data, &memcopy_bandwidth);
+  logprintf(4, "Stats: Memory Copy: %.2fM at %.2fMB/s\n",
+            memcopy_data,
+            memcopy_bandwidth);
+}
+
+void Sat::GoogleMemoryStats(float *memcopy_data,
+                            float *memcopy_bandwidth) {
+  // Do nothing, should be implemented by subclasses.
+}
+
+void Sat::FileStats() {
+  float file_data = 0.;
+  float file_bandwidth = 0.;
+  WorkerMap::const_iterator file_it = workers_map_.find(
+      static_cast<int>(kFileIOType));
+  sat_assert(file_it != workers_map_.end());
+  for (WorkerVector::const_iterator it = file_it->second->begin();
+       it != file_it->second->end(); ++it) {
+    file_data += (*it)->GetDeviceCopiedData();
+    file_bandwidth += (*it)->GetDeviceBandwidth();
+  }
+  logprintf(4, "Stats: File Copy: %.2fM at %.2fMB/s\n",
+            file_data,
+            file_bandwidth);
+}
+
+void Sat::CheckStats() {
+  float check_data = 0.;
+  float check_bandwidth = 0.;
+  WorkerMap::const_iterator check_it = workers_map_.find(
+      static_cast<int>(kCheckType));
+  sat_assert(check_it != workers_map_.end());
+  for (WorkerVector::const_iterator it = check_it->second->begin();
+       it != check_it->second->end(); ++it) {
+    check_data += (*it)->GetMemoryCopiedData();
+    check_bandwidth += (*it)->GetMemoryBandwidth();
+  }
+  logprintf(4, "Stats: Data Check: %.2fM at %.2fMB/s\n",
+            check_data,
+            check_bandwidth);
+}
+
+void Sat::NetStats() {
+  float net_data = 0.;
+  float net_bandwidth = 0.;
+  WorkerMap::const_iterator netio_it = workers_map_.find(
+      static_cast<int>(kNetIOType));
+  WorkerMap::const_iterator netslave_it = workers_map_.find(
+      static_cast<int>(kNetSlaveType));
+  sat_assert(netio_it != workers_map_.end());
+  sat_assert(netslave_it != workers_map_.end());
+  for (WorkerVector::const_iterator it = netio_it->second->begin();
+       it != netio_it->second->end(); ++it) {
+    net_data += (*it)->GetDeviceCopiedData();
+    net_bandwidth += (*it)->GetDeviceBandwidth();
+  }
+  for (WorkerVector::const_iterator it = netslave_it->second->begin();
+       it != netslave_it->second->end(); ++it) {
+    net_data += (*it)->GetDeviceCopiedData();
+    net_bandwidth += (*it)->GetDeviceBandwidth();
+  }
+  logprintf(4, "Stats: Net Copy: %.2fM at %.2fMB/s\n",
+            net_data,
+            net_bandwidth);
+}
+
+void Sat::InvertStats() {
+  float invert_data = 0.;
+  float invert_bandwidth = 0.;
+  WorkerMap::const_iterator invert_it = workers_map_.find(
+      static_cast<int>(kInvertType));
+  sat_assert(invert_it != workers_map_.end());
+  for (WorkerVector::const_iterator it = invert_it->second->begin();
+       it != invert_it->second->end(); ++it) {
+    invert_data += (*it)->GetMemoryCopiedData();
+    invert_bandwidth += (*it)->GetMemoryBandwidth();
+  }
+  logprintf(4, "Stats: Invert Data: %.2fM at %.2fMB/s\n",
+            invert_data,
+            invert_bandwidth);
+}
+
+void Sat::DiskStats() {
+  float disk_data = 0.;
+  float disk_bandwidth = 0.;
+  WorkerMap::const_iterator disk_it = workers_map_.find(
+      static_cast<int>(kDiskType));
+  WorkerMap::const_iterator random_it = workers_map_.find(
+      static_cast<int>(kRandomDiskType));
+  sat_assert(disk_it != workers_map_.end());
+  sat_assert(random_it != workers_map_.end());
+  for (WorkerVector::const_iterator it = disk_it->second->begin();
+       it != disk_it->second->end(); ++it) {
+    disk_data += (*it)->GetDeviceCopiedData();
+    disk_bandwidth += (*it)->GetDeviceBandwidth();
+  }
+  for (WorkerVector::const_iterator it = random_it->second->begin();
+       it != random_it->second->end(); ++it) {
+    disk_data += (*it)->GetDeviceCopiedData();
+    disk_bandwidth += (*it)->GetDeviceBandwidth();
+  }
+
+  logprintf(4, "Stats: Disk: %.2fM at %.2fMB/s\n",
+            disk_data,
+            disk_bandwidth);
+}
+
+// Process worker thread data for bandwidth information, and error results.
+// You can add more methods here just subclassing SAT.
+void Sat::RunAnalysis() {
+  AnalysisAllStats();
+  MemoryStats();
+  FileStats();
+  NetStats();
+  CheckStats();
+  InvertStats();
+  DiskStats();
+}
+
+// Get total error count, summing across all threads..
+int64 Sat::GetTotalErrorCount() {
+  int64 errors = 0;
+
+  AcquireWorkerLock();
+  for (WorkerMap::const_iterator map_it = workers_map_.begin();
+       map_it != workers_map_.end(); ++map_it) {
+    for (WorkerVector::const_iterator it = map_it->second->begin();
+         it != map_it->second->end(); ++it) {
+      errors += (*it)->GetErrorCount();
+    }
+  }
+  ReleaseWorkerLock();
+  return errors;
+}
+
+
+void Sat::SpawnThreads() {
+  logprintf(12, "Log: Initializing WorkerStatus objects\n");
+  power_spike_status_.Initialize();
+  continuous_status_.Initialize();
+  logprintf(12, "Log: Spawning worker threads\n");
+  for (WorkerMap::const_iterator map_it = workers_map_.begin();
+       map_it != workers_map_.end(); ++map_it) {
+    for (WorkerVector::const_iterator it = map_it->second->begin();
+         it != map_it->second->end(); ++it) {
+      logprintf(12, "Log: Spawning thread %d\n", (*it)->ThreadID());
+      (*it)->SpawnThread();
+    }
+  }
+}
+
+// Delete used worker thread objects.
+void Sat::DeleteThreads() {
+  logprintf(12, "Log: Deleting worker threads\n");
+  for (WorkerMap::const_iterator map_it = workers_map_.begin();
+       map_it != workers_map_.end(); ++map_it) {
+    for (WorkerVector::const_iterator it = map_it->second->begin();
+         it != map_it->second->end(); ++it) {
+      logprintf(12, "Log: Deleting thread %d\n", (*it)->ThreadID());
+      delete (*it);
+    }
+    delete map_it->second;
+  }
+  workers_map_.clear();
+  logprintf(12, "Log: Destroying WorkerStatus objects\n");
+  power_spike_status_.Destroy();
+  continuous_status_.Destroy();
+}
+
+namespace {
+// Calculates the next time an action in Sat::Run() should occur, based on a
+// schedule derived from a start point and a regular frequency.
+//
+// Using frequencies instead of intervals with their accompanying drift allows
+// users to better predict when the actions will occur throughout a run.
+//
+// Arguments:
+//   frequency: seconds
+//   start: unixtime
+//   now: unixtime
+//
+// Returns: unixtime
+inline time_t NextOccurance(time_t frequency, time_t start, time_t now) {
+  return start + frequency + (((now - start) / frequency) * frequency);
+}
+}
+
+// Run the actual test.
+bool Sat::Run() {
+  // Install signal handlers to gracefully exit in the middle of a run.
+  //
+  // Why go through this whole rigmarole?  It's the only standards-compliant
+  // (C++ and POSIX) way to handle signals in a multithreaded program.
+  // Specifically:
+  //
+  // 1) (C++) The value of a variable not of type "volatile sig_atomic_t" is
+  //    unspecified upon entering a signal handler and, if modified by the
+  //    handler, is unspecified after leaving the handler.
+  //
+  // 2) (POSIX) After the value of a variable is changed in one thread, another
+  //    thread is only guaranteed to see the new value after both threads have
+  //    acquired or released the same mutex or rwlock, synchronized to the
+  //    same barrier, or similar.
+  //
+  // #1 prevents the use of #2 in a signal handler, so the signal handler must
+  // be called in the same thread that reads the "volatile sig_atomic_t"
+  // variable it sets.  We enforce that by blocking the signals in question in
+  // the worker threads, forcing them to be handled by this thread.
+  logprintf(12, "Log: Installing signal handlers\n");
+  sigset_t new_blocked_signals;
+  sigemptyset(&new_blocked_signals);
+  sigaddset(&new_blocked_signals, SIGINT);
+  sigaddset(&new_blocked_signals, SIGTERM);
+  sigset_t prev_blocked_signals;
+  pthread_sigmask(SIG_BLOCK, &new_blocked_signals, &prev_blocked_signals);
+  sighandler_t prev_sigint_handler = signal(SIGINT, SatHandleBreak);
+  sighandler_t prev_sigterm_handler = signal(SIGTERM, SatHandleBreak);
+
+  // Kick off all the worker threads.
+  logprintf(12, "Log: Launching worker threads\n");
+  InitializeThreads();
+  SpawnThreads();
+  pthread_sigmask(SIG_SETMASK, &prev_blocked_signals, NULL);
+
+  logprintf(12, "Log: Starting countdown with %d seconds\n", runtime_seconds_);
+
+  // In seconds.
+  static const time_t kSleepFrequency = 5;
+  // All of these are in seconds.  You probably want them to be >=
+  // kSleepFrequency and multiples of kSleepFrequency, but neither is necessary.
+  static const time_t kInjectionFrequency = 10;
+  static const time_t kPrintFrequency = 10;
+
+  const time_t start = time(NULL);
+  const time_t end = start + runtime_seconds_;
+  time_t now = start;
+  time_t next_print = start + kPrintFrequency;
+  time_t next_pause = start + pause_delay_;
+  time_t next_resume = 0;
+  time_t next_injection;
+  if (crazy_error_injection_) {
+    next_injection = start + kInjectionFrequency;
+  } else {
+    next_injection = 0;
+  }
+
+  while (now < end) {
+    // This is an int because it's for logprintf().
+    const int seconds_remaining = end - now;
+
+    if (user_break_) {
+      // Handle early exit.
+      logprintf(0, "Log: User exiting early (%d seconds remaining)\n",
+                seconds_remaining);
+      break;
+    }
+
+    // If we have an error limit, check it here and see if we should exit.
+    if (max_errorcount_ != 0) {
+      uint64 errors = GetTotalErrorCount();
+      if (errors > max_errorcount_) {
+        logprintf(0, "Log: Exiting early (%d seconds remaining) "
+                     "due to excessive failures (%lld)\n",
+                  seconds_remaining,
+                  errors);
+        break;
+      }
+    }
+
+    if (now >= next_print) {
+      // Print a count down message.
+      logprintf(5, "Log: Seconds remaining: %d\n", seconds_remaining);
+      next_print = NextOccurance(kPrintFrequency, start, now);
+    }
+
+    if (next_injection && now >= next_injection) {
+      // Inject an error.
+      logprintf(4, "Log: Injecting error (%d seconds remaining)\n",
+                seconds_remaining);
+      struct page_entry src;
+      GetValid(&src);
+      src.pattern = patternlist_->GetPattern(0);
+      PutValid(&src);
+      next_injection = NextOccurance(kInjectionFrequency, start, now);
+    }
+
+    if (next_pause && now >= next_pause) {
+      // Tell worker threads to pause in preparation for a power spike.
+      logprintf(4, "Log: Pausing worker threads in preparation for power spike "
+                "(%d seconds remaining)\n", seconds_remaining);
+      power_spike_status_.PauseWorkers();
+      logprintf(12, "Log: Worker threads paused\n");
+      next_pause = 0;
+      next_resume = now + pause_duration_;
+    }
+
+    if (next_resume && now >= next_resume) {
+      // Tell worker threads to resume in order to cause a power spike.
+      logprintf(4, "Log: Resuming worker threads to cause a power spike (%d "
+                "seconds remaining)\n", seconds_remaining);
+      power_spike_status_.ResumeWorkers();
+      logprintf(12, "Log: Worker threads resumed\n");
+      next_pause = NextOccurance(pause_delay_, start, now);
+      next_resume = 0;
+    }
+
+    sat_sleep(NextOccurance(kSleepFrequency, start, now) - now);
+    now = time(NULL);
+  }
+
+  JoinThreads();
+
+  logprintf(0, "Stats: Found %lld hardware incidents\n", errorcount_);
+
+  if (!monitor_mode_)
+    RunAnalysis();
+
+  DeleteThreads();
+
+  logprintf(12, "Log: Uninstalling signal handlers\n");
+  signal(SIGINT, prev_sigint_handler);
+  signal(SIGTERM, prev_sigterm_handler);
+
+  return true;
+}
+
+// Clean up all resources.
+bool Sat::Cleanup() {
+  g_sat = NULL;
+  Logger::GlobalLogger()->StopThread();
+  Logger::GlobalLogger()->SetStdoutOnly();
+  if (logfile_) {
+    close(logfile_);
+    logfile_ = 0;
+  }
+  if (patternlist_) {
+    patternlist_->Destroy();
+    delete patternlist_;
+    patternlist_ = 0;
+  }
+  if (os_) {
+    os_->FreeTestMem();
+    delete os_;
+    os_ = 0;
+  }
+  if (empty_) {
+    delete empty_;
+    empty_ = 0;
+  }
+  if (valid_) {
+    delete valid_;
+    valid_ = 0;
+  }
+  if (finelock_q_) {
+    delete finelock_q_;
+    finelock_q_ = 0;
+  }
+  if (page_bitmap_) {
+    delete[] page_bitmap_;
+  }
+
+  for (size_t i = 0; i < blocktables_.size(); i++) {
+    delete blocktables_[i];
+  }
+
+  if (cc_cacheline_data_) {
+    // The num integer arrays for all the cacheline structures are
+    // allocated as a single chunk. The pointers in the cacheline struct
+    // are populated accordingly. Hence calling free on the first
+    // cacheline's num's address is going to free the entire array.
+    // TODO(aganti): Refactor this to have a class for the cacheline
+    // structure (currently defined in worker.h) and clean this up
+    // in the destructor of that class.
+    if (cc_cacheline_data_[0].num) {
+      free(cc_cacheline_data_[0].num);
+    }
+    free(cc_cacheline_data_);
+  }
+
+  sat_assert(0 == pthread_mutex_destroy(&worker_lock_));
+
+  return true;
+}
+
+
+// Pretty print really obvious results.
+bool Sat::PrintResults() {
+  bool result = true;
+
+  logprintf(4, "\n");
+  if (statuscount_) {
+    logprintf(4, "Status: FAIL - test encountered procedural errors\n");
+    result = false;
+  } else if (errorcount_) {
+    logprintf(4, "Status: FAIL - test discovered HW problems\n");
+    result = false;
+  } else {
+    logprintf(4, "Status: PASS - please verify no corrected errors\n");
+  }
+  logprintf(4, "\n");
+
+  return result;
+}
+
+// Helper functions.
+void Sat::AcquireWorkerLock() {
+  sat_assert(0 == pthread_mutex_lock(&worker_lock_));
+}
+void Sat::ReleaseWorkerLock() {
+  sat_assert(0 == pthread_mutex_unlock(&worker_lock_));
+}
+
+void logprintf(int priority, const char *format, ...) {
+  va_list args;
+  va_start(args, format);
+  Logger::GlobalLogger()->VLogF(priority, format, args);
+  va_end(args);
+}
diff --git a/src/sat.h b/src/sat.h
new file mode 100644
index 0000000..b48f519
--- /dev/null
+++ b/src/sat.h
@@ -0,0 +1,310 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// sat.h : sat stress test object interface and data structures
+
+#ifndef STRESSAPPTEST_SAT_H_
+#define STRESSAPPTEST_SAT_H_
+
+#include <signal.h>
+
+#include <map>
+#include <string>
+#include <vector>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "finelock_queue.h"
+#include "queue.h"
+#include "sattypes.h"
+#include "worker.h"
+#include "os.h"
+
+// SAT stress test class.
+class Sat {
+ public:
+  // Enum for page queue implementation switch.
+  enum PageQueueType { SAT_ONELOCK, SAT_FINELOCK };
+
+  Sat();
+  virtual ~Sat();
+
+  // Read configuration from arguments. Called first.
+  bool ParseArgs(int argc, char **argv);
+  virtual bool CheckGoogleSpecificArgs(int argc, char **argv, int *i);
+  // Initialize data structures, subclasses, and resources,
+  // based on command line args.
+  // Called after ParseArgs().
+  bool Initialize();
+
+  // Execute the test. Initialize() and ParseArgs() must be called first.
+  // This must be called from a single-threaded program.
+  bool Run();
+
+  // Pretty print result summary.
+  // Called after Run().
+  // Return value is success or failure of the SAT run, *not* of this function!
+  bool PrintResults();
+
+  // Pretty print version info.
+  bool PrintVersion();
+
+  // Pretty print help.
+  virtual void PrintHelp();
+
+  // Clean up allocations and resources.
+  // Called last.
+  bool Cleanup();
+
+  // Abort Run().  Only for use by Run()-installed signal handlers.
+  void Break() { user_break_ = true; }
+
+  // Fetch and return empty and full pages into the empty and full pools.
+  bool GetValid(struct page_entry *pe);
+  bool PutValid(struct page_entry *pe);
+  bool GetEmpty(struct page_entry *pe);
+  bool PutEmpty(struct page_entry *pe);
+
+  bool GetValid(struct page_entry *pe, int32 tag);
+  bool GetEmpty(struct page_entry *pe, int32 tag);
+
+  // Accessor functions.
+  int verbosity() const { return verbosity_; }
+  int logfile() const { return logfile_; }
+  int page_length() const { return page_length_; }
+  int disk_pages() const { return disk_pages_; }
+  int strict() const { return strict_; }
+  int tag_mode() const { return tag_mode_; }
+  int status() const { return statuscount_; }
+  void bad_status() { statuscount_++; }
+  int errors() const { return errorcount_; }
+  int warm() const { return warm_; }
+  bool stop_on_error() const { return stop_on_error_; }
+  int32 region_mask() const { return region_mask_; }
+  // Semi-accessor to find the "nth" region to avoid replicated bit searching..
+  int32 region_find(int32 num) const {
+    for (int i = 0; i < 32; i++) {
+      if ((1 << i) & region_mask_) {
+        if (num == 0)
+          return i;
+        num--;
+      }
+    }
+    return 0;
+  }
+
+  // Causes false errors for unittesting.
+  // Setting to "true" causes errors to be injected.
+  void set_error_injection(bool errors) { error_injection_ = errors; }
+  bool error_injection() const { return error_injection_; }
+
+ protected:
+  // Opens log file for writing. Returns 0 on failure.
+  bool InitializeLogfile();
+  // Checks for supported environment. Returns 0 on failure.
+  bool CheckEnvironment();
+  // Allocates size_ bytes of test memory.
+  bool AllocateMemory();
+  // Initializes datapattern reference structures.
+  bool InitializePatterns();
+  // Initializes test memory with datapatterns.
+  bool InitializePages();
+
+  // Start up worker threads.
+  virtual void InitializeThreads();
+  // Spawn worker threads.
+  void SpawnThreads();
+  // Reap worker threads.
+  void JoinThreads();
+  // Run bandwidth and error analysis.
+  virtual void RunAnalysis();
+  // Delete worker threads.
+  void DeleteThreads();
+
+  // Return the number of cpus in the system.
+  int CpuCount();
+
+  // Collect error counts from threads.
+  int64 GetTotalErrorCount();
+
+  // Command line arguments.
+  string cmdline_;
+
+  // Memory and test configuration.
+  int runtime_seconds_;               // Seconds to run.
+  int page_length_;                   // Length of each memory block.
+  int64 pages_;                       // Number of memory blocks.
+  int64 size_;                        // Size of memory tested, in bytes.
+  int64 size_mb_;                     // Size of memory tested, in MB.
+  int64 min_hugepages_mbytes_;        // Minimum hugepages size.
+  int64 freepages_;                   // How many invalid pages we need.
+  int disk_pages_;                    // Number of pages per temp file.
+  uint64 paddr_base_;                 // Physical address base.
+
+  // Control flags.
+  volatile sig_atomic_t user_break_;  // User has signalled early exit.  Used as
+                                      // a boolean.
+  int verbosity_;                     // How much to print.
+  int strict_;                        // Check results per transaction.
+  int warm_;                          // FPU warms CPU while coying.
+  int address_mode_;                  // 32 or 64 bit binary.
+  bool stop_on_error_;                // Exit immendiately on any error.
+  bool findfiles_;                    // Autodetect tempfile locations.
+
+  bool error_injection_;              // Simulate errors, for unittests.
+  bool crazy_error_injection_;        // Simulate lots of errors.
+  uint64 max_errorcount_;             // Number of errors before forced exit.
+  int run_on_anything_;               // Ignore unknown machine ereor.
+  int use_logfile_;                   // Log to a file.
+  char logfilename_[255];             // Name of file to log to.
+  int logfile_;                       // File handle to log to.
+
+  // Disk thread options.
+  int read_block_size_;               // Size of block to read from disk.
+  int write_block_size_;              // Size of block to write to disk.
+  int64 segment_size_;                // Size of segment to split disk into.
+  int cache_size_;                    // Size of disk cache.
+  int blocks_per_segment_;            // Number of blocks to test per segment.
+  int read_threshold_;                // Maximum time (in us) a read should take
+                                      // before warning of a slow read.
+  int write_threshold_;               // Maximum time (in us) a write should
+                                      // take before warning of a slow write.
+  int non_destructive_;               // Whether to use non-destructive mode for
+                                      // the disk test.
+
+  // Generic Options.
+  int monitor_mode_;                  // Switch for monitor-only mode SAT.
+                                      // This switch trumps most of the other
+                                      // argument, as SAT will only run error
+                                      // polling threads.
+  int tag_mode_;                      // Do tagging of memory and strict
+                                      // checking for misplaced cachelines.
+
+  bool do_page_map_;                  // Should we print a list of used pages?
+  unsigned char *page_bitmap_;        // Store bitmap of physical pages seen.
+  uint64 page_bitmap_size_;           // Length of physical memory represented.
+
+  // Cpu Cache Coherency Options.
+  bool cc_test_;                      // Flag to decide whether to start the
+                                      // cache coherency threads.
+  int cc_cacheline_count_;            // Number of cache line size structures.
+  int cc_inc_count_;                  // Number of times to increment the shared
+                                      // cache lines structure members.
+
+  // Thread control.
+  int file_threads_;                  // Threads of file IO.
+  int net_threads_;                   // Threads of network IO.
+  int listen_threads_;                // Threads for network IO to connect.
+  int memory_threads_;                // Threads of memcpy.
+  int invert_threads_;                // Threads of invert.
+  int fill_threads_;                  // Threads of memset.
+  int check_threads_;                 // Threads of strcmp.
+  int cpu_stress_threads_;            // Threads of CPU stress workload.
+  int disk_threads_;                  // Threads of disk test.
+  int random_threads_;                // Number of random disk threads.
+  int total_threads_;                 // Total threads used.
+  bool error_poll_;                   // Poll for system errors.
+
+  // Resources.
+  cc_cacheline_data *cc_cacheline_data_;  // The cache line sized datastructure
+                                          // used by the ccache threads
+                                          // (in worker.h).
+  vector<string> filename_;           // Filenames for file IO.
+  vector<string> ipaddrs_;            // Addresses for network IO.
+  vector<string> diskfilename_;       // Filename for disk IO device.
+  // Block table for IO device.
+  vector<DiskBlockTable*> blocktables_;
+
+  int32 region_mask_;                 // Bitmask of available NUMA regions.
+  int32 region_count_;                // Count of available NUMA regions.
+  int32 region_[32];                  // Pagecount per region.
+  int region_mode_;                   // What to do with NUMA hints?
+  static const int kLocalNuma = 1;    // Target local memory.
+  static const int kRemoteNuma = 2;   // Target remote memory.
+
+  // Results.
+  int64 errorcount_;                  // Total hardware incidents seen.
+  int statuscount_;                   // Total test errors seen.
+
+  // Thread type constants and types
+  enum ThreadType {
+    kMemoryType = 0,
+    kFileIOType = 1,
+    kNetIOType = 2,
+    kNetSlaveType = 3,
+    kCheckType = 4,
+    kInvertType = 5,
+    kDiskType = 6,
+    kRandomDiskType = 7,
+    kCPUType = 8,
+    kErrorType = 9,
+    kCCType = 10
+  };
+
+  // Helper functions.
+  virtual void AcquireWorkerLock();
+  virtual void ReleaseWorkerLock();
+  pthread_mutex_t worker_lock_;  // Lock access to the worker thread structure.
+  typedef vector<WorkerThread*> WorkerVector;
+  typedef map<int, WorkerVector*> WorkerMap;
+  // Contains all worker threads.
+  WorkerMap workers_map_;
+  // Delay between power spikes.
+  time_t pause_delay_;
+  // The duration of each pause (for power spikes).
+  time_t pause_duration_;
+  // For the workers we pause and resume to create power spikes.
+  WorkerStatus power_spike_status_;
+  // For the workers we never pause.
+  WorkerStatus continuous_status_;
+
+  class OsLayer *os_;                   // Os abstraction: put hacks here.
+  class PatternList *patternlist_;      // Access to global data patterns.
+
+  // RunAnalysis methods
+  void AnalysisAllStats();              // Summary of all runs.
+  void MemoryStats();
+  void FileStats();
+  void NetStats();
+  void CheckStats();
+  void InvertStats();
+  void DiskStats();
+
+  void QueueStats();
+
+  // Physical page use reporting.
+  void AddrMapInit();
+  void AddrMapUpdate(struct page_entry *pe);
+  void AddrMapPrint();
+
+  // additional memory data from google-specific tests.
+  virtual void GoogleMemoryStats(float *memcopy_data,
+                                 float *memcopy_bandwidth);
+
+  virtual void GoogleOsOptions(std::map<std::string, std::string> *options);
+
+  // Page queues, only one of (valid_+empty_) or (finelock_q_) will be used
+  // at a time. A commandline switch controls which queue implementation will
+  // be used.
+  class PageEntryQueue *valid_;        // Page queue structure, valid pages.
+  class PageEntryQueue *empty_;        // Page queue structure, free pages.
+  class FineLockPEQueue *finelock_q_;  // Page queue with fine-grain locks
+  Sat::PageQueueType pe_q_implementation_;   // Queue implementation switch
+
+  DISALLOW_COPY_AND_ASSIGN(Sat);
+};
+
+Sat *SatFactory();
+
+#endif  // STRESSAPPTEST_SAT_H_
diff --git a/src/sat_factory.cc b/src/sat_factory.cc
new file mode 100644
index 0000000..5cf3e4c
--- /dev/null
+++ b/src/sat_factory.cc
@@ -0,0 +1,21 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// sat_factory.h : factory for SAT
+
+#include "sat.h"  // NOLINT
+
+Sat *SatFactory() {
+  return new Sat();
+}
diff --git a/src/sattypes.h b/src/sattypes.h
new file mode 100644
index 0000000..96bf13b
--- /dev/null
+++ b/src/sattypes.h
@@ -0,0 +1,187 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef STRESSAPPTEST_SATTYPES_H_
+#define STRESSAPPTEST_SATTYPES_H_
+
+#include <arpa/inet.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <time.h>
+#include <string.h>
+#include <algorithm>
+#include <string>
+
+#ifdef HAVE_CONFIG_H  // Built using autoconf
+#include "stressapptest_config.h"
+using namespace std;
+using namespace __gnu_cxx;
+
+typedef signed long long   int64;
+typedef signed int         int32;
+typedef signed short int   int16;
+typedef signed char        int8;
+
+typedef unsigned long long uint64;
+typedef unsigned int       uint32;
+typedef unsigned short     uint16;
+typedef unsigned char      uint8;
+
+#define DISALLOW_COPY_AND_ASSIGN(TypeName)        \
+  TypeName(const TypeName&);                      \
+  void operator=(const TypeName&)
+
+inline const char* Timestamp() {
+  return STRESSAPPTEST_TIMESTAMP;
+}
+
+inline const char* BuildChangelist() {
+  return "open source release";
+}
+
+static const bool kOpenSource = true;
+#else
+static const bool kOpenSource = false;
+  #include "googlesattypes.h"
+#endif
+// Workaround to allow 32/64 bit conversion
+// without running into strict aliasing problems.
+union datacast_t {
+  uint64 l64;
+  struct {
+    uint32 l;
+    uint32 h;
+  } l32;
+};
+
+
+// File sync'd print to console and log
+void logprintf(int priority, const char *format, ...);
+
+// We print to stderr ourselves first in case we're in such a bad state that the
+// logger can't work.
+#define sat_assert(x) \
+{\
+  if (!(x)) {\
+    fprintf(stderr, "Assertion failed at %s:%d\n", __FILE__, __LINE__);\
+    logprintf(0, "Assertion failed at %s:%d\n", __FILE__, __LINE__);\
+    exit(1);\
+  }\
+}
+
+#if !defined(CPU_SETSIZE)
+  // Define type and macros for cpu mask operations
+  // Note: this code is hacked together to deal with difference
+  // function signatures across versions of glibc, ie those that take
+  // cpu_set_t versus those that take unsigned long.  -johnhuang
+  typedef uint64 cpu_set_t;
+  #define CPU_SETSIZE                   (sizeof(cpu_set_t) * 8)
+  #define CPU_ISSET(index, cpu_set_ptr) (*(cpu_set_ptr) & 1ull << (index))
+  #define CPU_SET(index, cpu_set_ptr)   (*(cpu_set_ptr) |= 1ull << (index))
+  #define CPU_ZERO(cpu_set_ptr)         (*(cpu_set_ptr) = 0)
+  #define CPU_CLR(index, cpu_set_ptr)   (*(cpu_set_ptr) &= ~(1ull << (index)))
+#endif
+
+static inline bool cpuset_isequal(const cpu_set_t *c1, const cpu_set_t *c2) {
+  for (int i = 0; i < CPU_SETSIZE; ++i)
+    if ((CPU_ISSET(i, c1) != 0) != (CPU_ISSET(i, c2) != 0))
+      return false;
+  return true;
+}
+
+static inline bool cpuset_issubset(const cpu_set_t *c1, const cpu_set_t *c2) {
+  for (int i = 0; i < CPU_SETSIZE; ++i)
+    if (CPU_ISSET(i, c1) && !CPU_ISSET(i, c2))
+      return false;
+  return true;
+}
+
+static inline int cpuset_count(const cpu_set_t *cpuset) {
+  int count = 0;
+  for (int i = 0; i < CPU_SETSIZE; ++i)
+    if (CPU_ISSET(i, cpuset))
+      ++count;
+  return count;
+}
+
+static inline void cpuset_set_ab(cpu_set_t *cpuset, int a, int b) {
+  CPU_ZERO(cpuset);
+  for (int i = a; i < b; ++i)
+    CPU_SET(i, cpuset);
+}
+
+static inline string cpuset_format(const cpu_set_t *cpuset) {
+  string format;
+  int digit = 0, last_non_zero_size = 1;
+  for (int i = 0; i < CPU_SETSIZE; ++i) {
+    if (CPU_ISSET(i, cpuset)) {
+      digit |= 1 << (i & 3);
+    }
+    if ((i & 3) == 3) {
+      format += char(digit <= 9 ? '0' + digit: 'A' + digit - 10);
+      if (digit) {
+        last_non_zero_size = format.size();
+        digit = 0;
+      }
+    }
+  }
+  if (digit) {
+    format += char(digit <= 9 ? '0' + digit: 'A' + digit - 10);
+    last_non_zero_size = format.size();
+  }
+  format.erase(last_non_zero_size);
+  reverse(format.begin(), format.end());
+  return format;
+}
+
+static const int32 kUSleepOneSecond = 1000000;
+
+// This is guaranteed not to use signals.
+inline bool sat_usleep(int32 microseconds) {
+  timespec req;
+  req.tv_sec = microseconds / 1000000;
+  // Convert microseconds argument to nano seconds.
+  req.tv_nsec = (microseconds % 1000000) * 1000;
+  return nanosleep(&req, NULL) == 0;
+}
+
+// This is guaranteed not to use signals.
+inline bool sat_sleep(time_t seconds) {
+  timespec req;
+  req.tv_sec = seconds;
+  req.tv_nsec = 0;
+  return nanosleep(&req, NULL) == 0;
+}
+
+// Get an error code description for use in error messages.
+//
+// Args:
+//   error_num: an errno error code
+inline string ErrorString(int error_num) {
+  char buf[256];
+  return string(strerror_r(error_num, buf, sizeof buf));
+}
+
+// Define handy constants here
+static const int kTicksPerSec = 100;
+static const int kMegabyte = (1024LL*1024LL);
+static const int kSatDiskPageMax = 32;
+static const int kSatDiskPage = 8;
+static const int kSatPageSize = (1024LL*1024LL);
+static const int kCacheLineSize = 64;
+static const uint16_t kNetworkPort = 19996;
+
+#endif  // STRESSAPPTEST_SATTYPES_H_
diff --git a/src/stressapptest_config.h.in b/src/stressapptest_config.h.in
new file mode 100644
index 0000000..b78857c
--- /dev/null
+++ b/src/stressapptest_config.h.in
@@ -0,0 +1,206 @@
+/* src/stressapptest_config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if the `closedir' function returns void instead of `int'. */
+#undef CLOSEDIR_VOID
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#undef HAVE_ARPA_INET_H
+
+/* Define to 1 if you have the declaration of `strerror_r', and to 0 if you
+   don't. */
+#undef HAVE_DECL_STRERROR_R
+
+/* Define to 1 if you have the <dirent.h> header file, and it defines `DIR'.
+   */
+#undef HAVE_DIRENT_H
+
+/* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
+#undef HAVE_DOPRNT
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#undef HAVE_GETTIMEOFDAY
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <libaio.h> header file. */
+#undef HAVE_LIBAIO_H
+
+/* Define to 1 if you have the <malloc.h> header file. */
+#undef HAVE_MALLOC_H
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `memset' function. */
+#undef HAVE_MEMSET
+
+/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
+#undef HAVE_NDIR_H
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#undef HAVE_NETDB_H
+
+/* Define to 1 if you have the <pthread.h> header file. */
+#undef HAVE_PTHREAD_H
+
+/* Define to 1 if you have the `select' function. */
+#undef HAVE_SELECT
+
+/* Define to 1 if you have the `socket' function. */
+#undef HAVE_SOCKET
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#undef HAVE_STDBOOL_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the `strerror_r' function. */
+#undef HAVE_STRERROR_R
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the `strtol' function. */
+#undef HAVE_STRTOL
+
+/* Define to 1 if you have the `strtoull' function. */
+#undef HAVE_STRTOULL
+
+/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
+   */
+#undef HAVE_SYS_DIR_H
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#undef HAVE_SYS_IOCTL_H
+
+/* Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR'.
+   */
+#undef HAVE_SYS_NDIR_H
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#undef HAVE_SYS_SELECT_H
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#undef HAVE_SYS_SOCKET_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the `vprintf' function. */
+#undef HAVE_VPRINTF
+
+/* Define to 1 if the system has the type `_Bool'. */
+#undef HAVE__BOOL
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#undef RETSIGTYPE
+
+/* Define to the type of arg 1 for `select'. */
+#undef SELECT_TYPE_ARG1
+
+/* Define to the type of args 2, 3 and 4 for `select'. */
+#undef SELECT_TYPE_ARG234
+
+/* Define to the type of arg 5 for `select'. */
+#undef SELECT_TYPE_ARG5
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Define to 1 if strerror_r returns char *. */
+#undef STRERROR_R_CHAR_P
+
+/* Defined if the target CPU is armv7a */
+#undef STRESSAPPTEST_CPU_ARMV7A
+
+/* Defined if the target CPU is i686 */
+#undef STRESSAPPTEST_CPU_I686
+
+/* Defined if the target CPU is PowerPC */
+#undef STRESSAPPTEST_CPU_PPC
+
+/* Defined if the target CPU is x86_64 */
+#undef STRESSAPPTEST_CPU_X86_64
+
+/* Defined if the target OS is BSD based */
+#undef STRESSAPPTEST_OS_BSD
+
+/* Defined if the target OS is OSX */
+#undef STRESSAPPTEST_OS_DARWIN
+
+/* Defined if the target OS is Linux */
+#undef STRESSAPPTEST_OS_LINUX
+
+/* Timestamp when ./configure was executed */
+#undef STRESSAPPTEST_TIMESTAMP
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#undef TIME_WITH_SYS_TIME
+
+/* Version number of package */
+#undef VERSION
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+#undef inline
+#endif
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef pid_t
+
+/* Define to equivalent of C99 restrict keyword, or to nothing if this is not
+   supported. Do not define if restrict is supported directly. */
+#undef restrict
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef ssize_t
+
+/* Define to the type of an unsigned integer type of width exactly 16 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint16_t
+
+/* Define to empty if the keyword `volatile' does not work. Warning: valid
+   code using `volatile' can become incorrect without. Disable with care. */
+#undef volatile
diff --git a/src/worker.cc b/src/worker.cc
new file mode 100644
index 0000000..2fab28e
--- /dev/null
+++ b/src/worker.cc
@@ -0,0 +1,3344 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// worker.cc : individual tasks that can be run in combination to
+// stress the system
+
+#include <errno.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <sys/select.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/times.h>
+
+// These are necessary, but on by default
+// #define __USE_GNU
+// #define __USE_LARGEFILE64
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <linux/unistd.h>  // for gettid
+
+// For size of block device
+#include <sys/ioctl.h>
+#include <linux/fs.h>
+// For asynchronous I/O
+#include <libaio.h>
+
+#include <sys/syscall.h>
+
+#include <set>
+#include <string>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "error_diag.h"  // NOLINT
+#include "os.h"          // NOLINT
+#include "pattern.h"     // NOLINT
+#include "queue.h"       // NOLINT
+#include "sat.h"         // NOLINT
+#include "sattypes.h"    // NOLINT
+#include "worker.h"      // NOLINT
+
+// Syscalls
+// Why ubuntu, do you hate gettid so bad?
+#if !defined(__NR_gettid)
+  #define __NR_gettid             224
+#endif
+
+#define gettid() syscall(__NR_gettid)
+#if !defined(CPU_SETSIZE)
+_syscall3(int, sched_getaffinity, pid_t, pid,
+          unsigned int, len, cpu_set_t*, mask)
+_syscall3(int, sched_setaffinity, pid_t, pid,
+          unsigned int, len, cpu_set_t*, mask)
+#endif
+
+// Linux aio syscalls.
+#if !defined(__NR_io_setup)
+#error "No aio headers inculded, please install libaio."
+#endif
+
+namespace {
+  // Get HW core ID from cpuid instruction.
+  inline int apicid(void) {
+    int cpu;
+#if defined(STRESSAPPTEST_CPU_X86_64) || defined(STRESSAPPTEST_CPU_I686)
+    __asm __volatile("cpuid" : "=b" (cpu) : "a" (1) : "cx", "dx");
+#elif defined(STRESSAPPTEST_CPU_ARMV7A)
+  #warning "Unsupported CPU type ARMV7A: unable to determine core ID."
+    cpu = 0;
+#else
+  #warning "Unsupported CPU type: unable to determine core ID."
+    cpu = 0;
+#endif
+    return (cpu >> 24);
+  }
+
+  // Work around the sad fact that there are two (gnu, xsi) incompatible
+  // versions of strerror_r floating around google. Awesome.
+  bool sat_strerror(int err, char *buf, int len) {
+    buf[0] = 0;
+    char *errmsg = reinterpret_cast<char*>(strerror_r(err, buf, len));
+    int retval = reinterpret_cast<int64>(errmsg);
+    if (retval == 0)
+      return true;
+    if (retval == -1)
+      return false;
+    if (errmsg != buf) {
+      strncpy(buf, errmsg, len);
+      buf[len - 1] = 0;
+    }
+    return true;
+  }
+
+
+  inline uint64 addr_to_tag(void *address) {
+    return reinterpret_cast<uint64>(address);
+  }
+}
+
+#if !defined(O_DIRECT)
+// Sometimes this isn't available.
+// Disregard if it's not defined.
+  #define O_DIRECT            0
+#endif
+
+// A struct to hold captured errors, for later reporting.
+struct ErrorRecord {
+  uint64 actual;  // This is the actual value read.
+  uint64 reread;  // This is the actual value, reread.
+  uint64 expected;  // This is what it should have been.
+  uint64 *vaddr;  // This is where it was (or wasn't).
+  char *vbyteaddr;  // This is byte specific where the data was (or wasn't).
+  uint64 paddr;  // This is the bus address, if available.
+  uint64 *tagvaddr;  // This holds the tag value if this data was tagged.
+  uint64 tagpaddr;  // This holds the physical address corresponding to the tag.
+};
+
+// This is a helper function to create new threads with pthreads.
+static void *ThreadSpawnerGeneric(void *ptr) {
+  WorkerThread *worker = static_cast<WorkerThread*>(ptr);
+  worker->StartRoutine();
+  return NULL;
+}
+
+void WorkerStatus::Initialize() {
+  sat_assert(0 == pthread_mutex_init(&num_workers_mutex_, NULL));
+  sat_assert(0 == pthread_rwlock_init(&status_rwlock_, NULL));
+  sat_assert(0 == pthread_barrier_init(&pause_barrier_, NULL,
+                                       num_workers_ + 1));
+}
+
+void WorkerStatus::Destroy() {
+  sat_assert(0 == pthread_mutex_destroy(&num_workers_mutex_));
+  sat_assert(0 == pthread_rwlock_destroy(&status_rwlock_));
+  sat_assert(0 == pthread_barrier_destroy(&pause_barrier_));
+}
+
+void WorkerStatus::PauseWorkers() {
+  if (SetStatus(PAUSE) != PAUSE)
+    WaitOnPauseBarrier();
+}
+
+void WorkerStatus::ResumeWorkers() {
+  if (SetStatus(RUN) == PAUSE)
+    WaitOnPauseBarrier();
+}
+
+void WorkerStatus::StopWorkers() {
+  if (SetStatus(STOP) == PAUSE)
+    WaitOnPauseBarrier();
+}
+
+bool WorkerStatus::ContinueRunning() {
+  // This loop is an optimization.  We use it to immediately re-check the status
+  // after resuming from a pause, instead of returning and waiting for the next
+  // call to this function.
+  for (;;) {
+    switch (GetStatus()) {
+      case RUN:
+        return true;
+      case PAUSE:
+        // Wait for the other workers to call this function so that
+        // PauseWorkers() can return.
+        WaitOnPauseBarrier();
+        // Wait for ResumeWorkers() to be called.
+        WaitOnPauseBarrier();
+        break;
+      case STOP:
+        return false;
+    }
+  }
+}
+
+bool WorkerStatus::ContinueRunningNoPause() {
+  return (GetStatus() != STOP);
+}
+
+void WorkerStatus::RemoveSelf() {
+  // Acquire a read lock on status_rwlock_ while (status_ != PAUSE).
+  for (;;) {
+    AcquireStatusReadLock();
+    if (status_ != PAUSE)
+      break;
+    // We need to obey PauseWorkers() just like ContinueRunning() would, so that
+    // the other threads won't wait on pause_barrier_ forever.
+    ReleaseStatusLock();
+    // Wait for the other workers to call this function so that PauseWorkers()
+    // can return.
+    WaitOnPauseBarrier();
+    // Wait for ResumeWorkers() to be called.
+    WaitOnPauseBarrier();
+  }
+
+  // This lock would be unnecessary if we held a write lock instead of a read
+  // lock on status_rwlock_, but that would also force all threads calling
+  // ContinueRunning() to wait on this one.  Using a separate lock avoids that.
+  AcquireNumWorkersLock();
+  // Decrement num_workers_ and reinitialize pause_barrier_, which we know isn't
+  // in use because (status != PAUSE).
+  sat_assert(0 == pthread_barrier_destroy(&pause_barrier_));
+  sat_assert(0 == pthread_barrier_init(&pause_barrier_, NULL, num_workers_));
+  --num_workers_;
+  ReleaseNumWorkersLock();
+
+  // Release status_rwlock_.
+  ReleaseStatusLock();
+}
+
+
+// Parent thread class.
+WorkerThread::WorkerThread() {
+  status_ = false;
+  pages_copied_ = 0;
+  errorcount_ = 0;
+  runduration_usec_ = 1;
+  priority_ = Normal;
+  worker_status_ = NULL;
+  thread_spawner_ = &ThreadSpawnerGeneric;
+  tag_mode_ = false;
+}
+
+WorkerThread::~WorkerThread() {}
+
+// Constructors. Just init some default values.
+FillThread::FillThread() {
+  num_pages_to_fill_ = 0;
+}
+
+// Initialize file name to empty.
+FileThread::FileThread() {
+  filename_ = "";
+  devicename_ = "";
+  pass_ = 0;
+  page_io_ = true;
+  crc_page_ = -1;
+  local_page_ = NULL;
+}
+
+// If file thread used bounce buffer in memory, account for the extra
+// copy for memory bandwidth calculation.
+float FileThread::GetMemoryCopiedData() {
+  if (!os_->normal_mem())
+    return GetCopiedData();
+  else
+    return 0;
+}
+
+// Initialize target hostname to be invalid.
+NetworkThread::NetworkThread() {
+  snprintf(ipaddr_, sizeof(ipaddr_), "Unknown");
+  sock_ = 0;
+}
+
+// Initialize?
+NetworkSlaveThread::NetworkSlaveThread() {
+}
+
+// Initialize?
+NetworkListenThread::NetworkListenThread() {
+}
+
+// Init member variables.
+void WorkerThread::InitThread(int thread_num_init,
+                              class Sat *sat_init,
+                              class OsLayer *os_init,
+                              class PatternList *patternlist_init,
+                              WorkerStatus *worker_status) {
+  sat_assert(worker_status);
+  worker_status->AddWorkers(1);
+
+  thread_num_ = thread_num_init;
+  sat_ = sat_init;
+  os_ = os_init;
+  patternlist_ = patternlist_init;
+  worker_status_ = worker_status;
+
+  AvailableCpus(&cpu_mask_);
+  tag_ = 0xffffffff;
+
+  tag_mode_ = sat_->tag_mode();
+}
+
+
+// Use pthreads to prioritize a system thread.
+bool WorkerThread::InitPriority() {
+  // This doesn't affect performance that much, and may not be too safe.
+
+  bool ret = BindToCpus(&cpu_mask_);
+  if (!ret)
+    logprintf(11, "Log: Bind to %s failed.\n",
+              cpuset_format(&cpu_mask_).c_str());
+
+  logprintf(11, "Log: Thread %d running on apic ID %d mask %s (%s).\n",
+            thread_num_, apicid(),
+            CurrentCpusFormat().c_str(),
+            cpuset_format(&cpu_mask_).c_str());
+#if 0
+  if (priority_ == High) {
+    sched_param param;
+    param.sched_priority = 1;
+    // Set the priority; others are unchanged.
+    logprintf(0, "Log: Changing priority to SCHED_FIFO %d\n",
+              param.sched_priority);
+    if (sched_setscheduler(0, SCHED_FIFO, &param)) {
+      char buf[256];
+      sat_strerror(errno, buf, sizeof(buf));
+      logprintf(0, "Process Error: sched_setscheduler "
+                   "failed - error %d %s\n",
+                errno, buf);
+    }
+  }
+#endif
+  return true;
+}
+
+// Use pthreads to create a system thread.
+int WorkerThread::SpawnThread() {
+  // Create the new thread.
+  int result = pthread_create(&thread_, NULL, thread_spawner_, this);
+  if (result) {
+    char buf[256];
+    sat_strerror(result, buf, sizeof(buf));
+    logprintf(0, "Process Error: pthread_create "
+                  "failed - error %d %s\n", result,
+              buf);
+    status_ = false;
+    return false;
+  }
+
+  // 0 is pthreads success.
+  return true;
+}
+
+// Kill the worker thread with SIGINT.
+bool WorkerThread::KillThread() {
+  return (pthread_kill(thread_, SIGINT) == 0);
+}
+
+// Block until thread has exited.
+bool WorkerThread::JoinThread() {
+  int result = pthread_join(thread_, NULL);
+
+  if (result) {
+    logprintf(0, "Process Error: pthread_join failed - error %d\n", result);
+    status_ = false;
+  }
+
+  // 0 is pthreads success.
+  return (!result);
+}
+
+
+void WorkerThread::StartRoutine() {
+  InitPriority();
+  StartThreadTimer();
+  Work();
+  StopThreadTimer();
+  worker_status_->RemoveSelf();
+}
+
+
+// Thread work loop. Execute until marked finished.
+bool WorkerThread::Work() {
+  do {
+    logprintf(9, "Log: ...\n");
+    // Sleep for 1 second.
+    sat_sleep(1);
+  } while (IsReadyToRun());
+
+  return false;
+}
+
+
+// Returns CPU mask of CPUs available to this process,
+// Conceptually, each bit represents a logical CPU, ie:
+//   mask = 3  (11b):   cpu0, 1
+//   mask = 13 (1101b): cpu0, 2, 3
+bool WorkerThread::AvailableCpus(cpu_set_t *cpuset) {
+  CPU_ZERO(cpuset);
+  return sched_getaffinity(getppid(), sizeof(*cpuset), cpuset) == 0;
+}
+
+
+// Returns CPU mask of CPUs this thread is bound to,
+// Conceptually, each bit represents a logical CPU, ie:
+//   mask = 3  (11b):   cpu0, 1
+//   mask = 13 (1101b): cpu0, 2, 3
+bool WorkerThread::CurrentCpus(cpu_set_t *cpuset) {
+  CPU_ZERO(cpuset);
+  return sched_getaffinity(0, sizeof(*cpuset), cpuset) == 0;
+}
+
+
+// Bind worker thread to specified CPU(s)
+//   Args:
+//     thread_mask: cpu_set_t representing CPUs, ie
+//                  mask = 1  (01b):   cpu0
+//                  mask = 3  (11b):   cpu0, 1
+//                  mask = 13 (1101b): cpu0, 2, 3
+//
+//   Returns true on success, false otherwise.
+bool WorkerThread::BindToCpus(const cpu_set_t *thread_mask) {
+  cpu_set_t process_mask;
+  AvailableCpus(&process_mask);
+  if (cpuset_isequal(thread_mask, &process_mask))
+    return true;
+
+  logprintf(11, "Log: available CPU mask - %s\n",
+            cpuset_format(&process_mask).c_str());
+  if (!cpuset_issubset(thread_mask, &process_mask)) {
+    // Invalid cpu_mask, ie cpu not allocated to this process or doesn't exist.
+    logprintf(0, "Log: requested CPUs %s not a subset of available %s\n",
+              cpuset_format(thread_mask).c_str(),
+              cpuset_format(&process_mask).c_str());
+    return false;
+  }
+  return (sched_setaffinity(gettid(), sizeof(*thread_mask), thread_mask) == 0);
+}
+
+
+// A worker thread can yield itself to give up CPU until it's scheduled again.
+//   Returns true on success, false on error.
+bool WorkerThread::YieldSelf() {
+  return (sched_yield() == 0);
+}
+
+
+// Fill this page with its pattern.
+bool WorkerThread::FillPage(struct page_entry *pe) {
+  // Error check arguments.
+  if (pe == 0) {
+    logprintf(0, "Process Error: Fill Page entry null\n");
+    return 0;
+  }
+
+  // Mask is the bitmask of indexes used by the pattern.
+  // It is the pattern size -1. Size is always a power of 2.
+  uint64 *memwords = static_cast<uint64*>(pe->addr);
+  int length = sat_->page_length();
+
+  if (tag_mode_) {
+    // Select tag or data as appropriate.
+    for (int i = 0; i < length / wordsize_; i++) {
+      datacast_t data;
+
+      if ((i & 0x7) == 0) {
+        data.l64 = addr_to_tag(&memwords[i]);
+      } else {
+        data.l32.l = pe->pattern->pattern(i << 1);
+        data.l32.h = pe->pattern->pattern((i << 1) + 1);
+      }
+      memwords[i] = data.l64;
+    }
+  } else {
+    // Just fill in untagged data directly.
+    for (int i = 0; i < length / wordsize_; i++) {
+      datacast_t data;
+
+      data.l32.l = pe->pattern->pattern(i << 1);
+      data.l32.h = pe->pattern->pattern((i << 1) + 1);
+      memwords[i] = data.l64;
+    }
+  }
+
+  return 1;
+}
+
+
+// Tell the thread how many pages to fill.
+void FillThread::SetFillPages(int64 num_pages_to_fill_init) {
+  num_pages_to_fill_ = num_pages_to_fill_init;
+}
+
+// Fill this page with a random pattern.
+bool FillThread::FillPageRandom(struct page_entry *pe) {
+  // Error check arguments.
+  if (pe == 0) {
+    logprintf(0, "Process Error: Fill Page entry null\n");
+    return 0;
+  }
+  if ((patternlist_ == 0) || (patternlist_->Size() == 0)) {
+    logprintf(0, "Process Error: No data patterns available\n");
+    return 0;
+  }
+
+  // Choose a random pattern for this block.
+  pe->pattern = patternlist_->GetRandomPattern();
+  if (pe->pattern == 0) {
+    logprintf(0, "Process Error: Null data pattern\n");
+    return 0;
+  }
+
+  // Actually fill the page.
+  return FillPage(pe);
+}
+
+
+// Memory fill work loop. Execute until alloted pages filled.
+bool FillThread::Work() {
+  bool result = true;
+
+  logprintf(9, "Log: Starting fill thread %d\n", thread_num_);
+
+  // We want to fill num_pages_to_fill pages, and
+  // stop when we've filled that many.
+  // We also want to capture early break
+  struct page_entry pe;
+  int64 loops = 0;
+  while (IsReadyToRun() && (loops < num_pages_to_fill_)) {
+    result = result && sat_->GetEmpty(&pe);
+    if (!result) {
+      logprintf(0, "Process Error: fill_thread failed to pop pages, "
+                "bailing\n");
+      break;
+    }
+
+    // Fill the page with pattern
+    result = result && FillPageRandom(&pe);
+    if (!result) break;
+
+    // Put the page back on the queue.
+    result = result && sat_->PutValid(&pe);
+    if (!result) {
+      logprintf(0, "Process Error: fill_thread failed to push pages, "
+                "bailing\n");
+      break;
+    }
+    loops++;
+  }
+
+  // Fill in thread status.
+  pages_copied_ = loops;
+  status_ = result;
+  logprintf(9, "Log: Completed %d: Fill thread. Status %d, %d pages filled\n",
+            thread_num_, status_, pages_copied_);
+  return result;
+}
+
+
+// Print error information about a data miscompare.
+void WorkerThread::ProcessError(struct ErrorRecord *error,
+                                int priority,
+                                const char *message) {
+  char dimm_string[256] = "";
+
+  int apic_id = apicid();
+
+  // Determine if this is a write or read error.
+  os_->Flush(error->vaddr);
+  error->reread = *(error->vaddr);
+
+  char *good = reinterpret_cast<char*>(&(error->expected));
+  char *bad = reinterpret_cast<char*>(&(error->actual));
+
+  sat_assert(error->expected != error->actual);
+  unsigned int offset = 0;
+  for (offset = 0; offset < (sizeof(error->expected) - 1); offset++) {
+    if (good[offset] != bad[offset])
+      break;
+  }
+
+  error->vbyteaddr = reinterpret_cast<char*>(error->vaddr) + offset;
+
+  // Find physical address if possible.
+  error->paddr = os_->VirtualToPhysical(error->vbyteaddr);
+
+  // Pretty print DIMM mapping if available.
+  os_->FindDimm(error->paddr, dimm_string, sizeof(dimm_string));
+
+  // Report parseable error.
+  if (priority < 5) {
+    // Run miscompare error through diagnoser for logging and reporting.
+    os_->error_diagnoser_->AddMiscompareError(dimm_string,
+                                              reinterpret_cast<uint64>
+                                              (error->vaddr), 1);
+
+    logprintf(priority,
+              "%s: miscompare on CPU %d(0x%s) at %p(0x%llx:%s): "
+              "read:0x%016llx, reread:0x%016llx expected:0x%016llx\n",
+              message,
+              apic_id,
+              CurrentCpusFormat().c_str(),
+              error->vaddr,
+              error->paddr,
+              dimm_string,
+              error->actual,
+              error->reread,
+              error->expected);
+  }
+
+
+  // Overwrite incorrect data with correct data to prevent
+  // future miscompares when this data is reused.
+  *(error->vaddr) = error->expected;
+  os_->Flush(error->vaddr);
+}
+
+
+
+// Print error information about a data miscompare.
+void FileThread::ProcessError(struct ErrorRecord *error,
+                              int priority,
+                              const char *message) {
+  char dimm_string[256] = "";
+
+  // Determine if this is a write or read error.
+  os_->Flush(error->vaddr);
+  error->reread = *(error->vaddr);
+
+  char *good = reinterpret_cast<char*>(&(error->expected));
+  char *bad = reinterpret_cast<char*>(&(error->actual));
+
+  sat_assert(error->expected != error->actual);
+  unsigned int offset = 0;
+  for (offset = 0; offset < (sizeof(error->expected) - 1); offset++) {
+    if (good[offset] != bad[offset])
+      break;
+  }
+
+  error->vbyteaddr = reinterpret_cast<char*>(error->vaddr) + offset;
+
+  // Find physical address if possible.
+  error->paddr = os_->VirtualToPhysical(error->vbyteaddr);
+
+  // Pretty print DIMM mapping if available.
+  os_->FindDimm(error->paddr, dimm_string, sizeof(dimm_string));
+
+  // If crc_page_ is valid, ie checking content read back from file,
+  // track src/dst memory addresses. Otherwise catagorize as general
+  // mememory miscompare for CRC checking everywhere else.
+  if (crc_page_ != -1) {
+    int miscompare_byteoffset = static_cast<char*>(error->vbyteaddr) -
+                                static_cast<char*>(page_recs_[crc_page_].dst);
+    os_->error_diagnoser_->AddHDDMiscompareError(devicename_,
+                                                 crc_page_,
+                                                 miscompare_byteoffset,
+                                                 page_recs_[crc_page_].src,
+                                                 page_recs_[crc_page_].dst);
+  } else {
+    os_->error_diagnoser_->AddMiscompareError(dimm_string,
+                                              reinterpret_cast<uint64>
+                                              (error->vaddr), 1);
+  }
+
+  logprintf(priority,
+            "%s: miscompare on %s at %p(0x%llx:%s): read:0x%016llx, "
+            "reread:0x%016llx expected:0x%016llx\n",
+            message,
+            devicename_.c_str(),
+            error->vaddr,
+            error->paddr,
+            dimm_string,
+            error->actual,
+            error->reread,
+            error->expected);
+
+  // Overwrite incorrect data with correct data to prevent
+  // future miscompares when this data is reused.
+  *(error->vaddr) = error->expected;
+  os_->Flush(error->vaddr);
+}
+
+
+// Do a word by word result check of a region.
+// Print errors on mismatches.
+int WorkerThread::CheckRegion(void *addr,
+                              class Pattern *pattern,
+                              int64 length,
+                              int offset,
+                              int64 pattern_offset) {
+  uint64 *memblock = static_cast<uint64*>(addr);
+  const int kErrorLimit = 128;
+  int errors = 0;
+  int overflowerrors = 0;  // Count of overflowed errors.
+  bool page_error = false;
+  string errormessage("Hardware Error");
+  struct ErrorRecord
+    recorded[kErrorLimit];  // Queued errors for later printing.
+
+  // For each word in the data region.
+  for (int i = 0; i < length / wordsize_; i++) {
+    uint64 actual = memblock[i];
+    uint64 expected;
+
+    // Determine the value that should be there.
+    datacast_t data;
+    int index = 2 * i + pattern_offset;
+    data.l32.l = pattern->pattern(index);
+    data.l32.h = pattern->pattern(index + 1);
+    expected = data.l64;
+    // Check tags if necessary.
+    if (tag_mode_ && ((reinterpret_cast<uint64>(&memblock[i]) & 0x3f) == 0)) {
+      expected = addr_to_tag(&memblock[i]);
+    }
+
+
+    // If the value is incorrect, save an error record for later printing.
+    if (actual != expected) {
+      if (errors < kErrorLimit) {
+        recorded[errors].actual = actual;
+        recorded[errors].expected = expected;
+        recorded[errors].vaddr = &memblock[i];
+        errors++;
+      } else {
+        page_error = true;
+        // If we have overflowed the error queue, just print the errors now.
+        logprintf(10, "Log: Error record overflow, too many miscompares!\n");
+        errormessage = "Page Error";
+        break;
+      }
+    }
+  }
+
+  // Find if this is a whole block corruption.
+  if (page_error && !tag_mode_) {
+    int patsize = patternlist_->Size();
+    for (int pat = 0; pat < patsize; pat++) {
+      class Pattern *altpattern = patternlist_->GetPattern(pat);
+      const int kGood = 0;
+      const int kBad = 1;
+      const int kGoodAgain = 2;
+      const int kNoMatch = 3;
+      int state = kGood;
+      unsigned int badstart = 0;
+      unsigned int badend = 0;
+
+      // Don't match against ourself!
+      if (pattern == altpattern)
+        continue;
+
+      for (int i = 0; i < length / wordsize_; i++) {
+        uint64 actual = memblock[i];
+        datacast_t expected;
+        datacast_t possible;
+
+        // Determine the value that should be there.
+        int index = 2 * i + pattern_offset;
+
+        expected.l32.l = pattern->pattern(index);
+        expected.l32.h = pattern->pattern(index + 1);
+
+        possible.l32.l = pattern->pattern(index);
+        possible.l32.h = pattern->pattern(index + 1);
+
+        if (state == kGood) {
+          if (actual == expected.l64) {
+            continue;
+          } else if (actual == possible.l64) {
+            badstart = i;
+            badend = i;
+            state = kBad;
+            continue;
+          } else {
+            state = kNoMatch;
+            break;
+          }
+        } else if (state == kBad) {
+          if (actual == possible.l64) {
+            badend = i;
+            continue;
+          } else if (actual == expected.l64) {
+            state = kGoodAgain;
+            continue;
+          } else {
+            state = kNoMatch;
+            break;
+          }
+        } else if (state == kGoodAgain) {
+          if (actual == expected.l64) {
+            continue;
+          } else {
+            state = kNoMatch;
+            break;
+          }
+        }
+      }
+
+      if ((state == kGoodAgain) || (state == kBad)) {
+        unsigned int blockerrors = badend - badstart + 1;
+        errormessage = "Block Error";
+        ProcessError(&recorded[0], 0, errormessage.c_str());
+        logprintf(0, "Block Error: (%p) pattern %s instead of %s, "
+                  "%d bytes from offset 0x%x to 0x%x\n",
+                  &memblock[badstart],
+                  altpattern->name(), pattern->name(),
+                  blockerrors * wordsize_,
+                  offset + badstart * wordsize_,
+                  offset + badend * wordsize_);
+        errorcount_ += blockerrors;
+        return blockerrors;
+      }
+    }
+  }
+
+
+  // Process error queue after all errors have been recorded.
+  for (int err = 0; err < errors; err++) {
+    int priority = 5;
+    if (errorcount_ + err < 30)
+      priority = 0;  // Bump up the priority for the first few errors.
+    ProcessError(&recorded[err], priority, errormessage.c_str());
+  }
+
+  if (page_error) {
+    // For each word in the data region.
+    int error_recount = 0;
+    for (int i = 0; i < length / wordsize_; i++) {
+      uint64 actual = memblock[i];
+      uint64 expected;
+      datacast_t data;
+      // Determine the value that should be there.
+      int index = 2 * i + pattern_offset;
+
+      data.l32.l = pattern->pattern(index);
+      data.l32.h = pattern->pattern(index + 1);
+      expected = data.l64;
+
+      // Check tags if necessary.
+      if (tag_mode_ && ((reinterpret_cast<uint64>(&memblock[i]) & 0x3f) == 0)) {
+        expected = addr_to_tag(&memblock[i]);
+      }
+
+      // If the value is incorrect, save an error record for later printing.
+      if (actual != expected) {
+        if (error_recount < kErrorLimit) {
+          // We already reported these.
+          error_recount++;
+        } else {
+          // If we have overflowed the error queue, print the errors now.
+          struct ErrorRecord er;
+          er.actual = actual;
+          er.expected = expected;
+          er.vaddr = &memblock[i];
+
+          // Do the error printout. This will take a long time and
+          // likely change the machine state.
+          ProcessError(&er, 12, errormessage.c_str());
+          overflowerrors++;
+        }
+      }
+    }
+  }
+
+  // Keep track of observed errors.
+  errorcount_ += errors + overflowerrors;
+  return errors + overflowerrors;
+}
+
+float WorkerThread::GetCopiedData() {
+  return pages_copied_ * sat_->page_length() / kMegabyte;
+}
+
+// Calculate the CRC of a region.
+// Result check if the CRC mismatches.
+int WorkerThread::CrcCheckPage(struct page_entry *srcpe) {
+  const int blocksize = 4096;
+  const int blockwords = blocksize / wordsize_;
+  int errors = 0;
+
+  const AdlerChecksum *expectedcrc = srcpe->pattern->crc();
+  uint64 *memblock = static_cast<uint64*>(srcpe->addr);
+  int blocks = sat_->page_length() / blocksize;
+  for (int currentblock = 0; currentblock < blocks; currentblock++) {
+    uint64 *memslice = memblock + currentblock * blockwords;
+
+    AdlerChecksum crc;
+    if (tag_mode_) {
+      AdlerAddrCrcC(memslice, blocksize, &crc, srcpe);
+    } else {
+      CalculateAdlerChecksum(memslice, blocksize, &crc);
+    }
+
+    // If the CRC does not match, we'd better look closer.
+    if (!crc.Equals(*expectedcrc)) {
+      logprintf(11, "Log: CrcCheckPage Falling through to slow compare, "
+                "CRC mismatch %s != %s\n",
+                crc.ToHexString().c_str(),
+                expectedcrc->ToHexString().c_str());
+      int errorcount = CheckRegion(memslice,
+                                   srcpe->pattern,
+                                   blocksize,
+                                   currentblock * blocksize, 0);
+      if (errorcount == 0) {
+        logprintf(0, "Log: CrcCheckPage CRC mismatch %s != %s, "
+                     "but no miscompares found.\n",
+                  crc.ToHexString().c_str(),
+                  expectedcrc->ToHexString().c_str());
+      }
+      errors += errorcount;
+    }
+  }
+
+  // For odd length transfers, we should never hit this.
+  int leftovers = sat_->page_length() % blocksize;
+  if (leftovers) {
+    uint64 *memslice = memblock + blocks * blockwords;
+    errors += CheckRegion(memslice,
+                          srcpe->pattern,
+                          leftovers,
+                          blocks * blocksize, 0);
+  }
+  return errors;
+}
+
+
+// Print error information about a data miscompare.
+void WorkerThread::ProcessTagError(struct ErrorRecord *error,
+                                   int priority,
+                                   const char *message) {
+  char dimm_string[256] = "";
+  char tag_dimm_string[256] = "";
+  bool read_error = false;
+
+  int apic_id = apicid();
+
+  // Determine if this is a write or read error.
+  os_->Flush(error->vaddr);
+  error->reread = *(error->vaddr);
+
+  // Distinguish read and write errors.
+  if (error->actual != error->reread) {
+    read_error = true;
+  }
+
+  sat_assert(error->expected != error->actual);
+
+  error->vbyteaddr = reinterpret_cast<char*>(error->vaddr);
+
+  // Find physical address if possible.
+  error->paddr = os_->VirtualToPhysical(error->vbyteaddr);
+  error->tagpaddr = os_->VirtualToPhysical(error->tagvaddr);
+
+  // Pretty print DIMM mapping if available.
+  os_->FindDimm(error->paddr, dimm_string, sizeof(dimm_string));
+  // Pretty print DIMM mapping if available.
+  os_->FindDimm(error->tagpaddr, tag_dimm_string, sizeof(tag_dimm_string));
+
+  // Report parseable error.
+  if (priority < 5) {
+    logprintf(priority,
+              "%s: Tag from %p(0x%llx:%s) (%s) "
+              "miscompare on CPU %d(0x%s) at %p(0x%llx:%s): "
+              "read:0x%016llx, reread:0x%016llx expected:0x%016llx\n",
+              message,
+              error->tagvaddr, error->tagpaddr,
+              tag_dimm_string,
+              read_error ? "read error" : "write error",
+              apic_id,
+              CurrentCpusFormat().c_str(),
+              error->vaddr,
+              error->paddr,
+              dimm_string,
+              error->actual,
+              error->reread,
+              error->expected);
+  }
+
+  errorcount_ += 1;
+
+  // Overwrite incorrect data with correct data to prevent
+  // future miscompares when this data is reused.
+  *(error->vaddr) = error->expected;
+  os_->Flush(error->vaddr);
+}
+
+
+// Print out and log a tag error.
+bool WorkerThread::ReportTagError(
+    uint64 *mem64,
+    uint64 actual,
+    uint64 tag) {
+  struct ErrorRecord er;
+  er.actual = actual;
+
+  er.expected = tag;
+  er.vaddr = mem64;
+
+  // Generate vaddr from tag.
+  er.tagvaddr = reinterpret_cast<uint64*>(actual);
+
+  ProcessTagError(&er, 0, "Hardware Error");
+  return true;
+}
+
+// C implementation of Adler memory copy, with memory tagging.
+bool WorkerThread::AdlerAddrMemcpyC(uint64 *dstmem64,
+                                    uint64 *srcmem64,
+                                    unsigned int size_in_bytes,
+                                    AdlerChecksum *checksum,
+                                    struct page_entry *pe) {
+  // Use this data wrapper to access memory with 64bit read/write.
+  datacast_t data;
+  datacast_t dstdata;
+  unsigned int count = size_in_bytes / sizeof(data);
+
+  if (count > ((1U) << 19)) {
+    // Size is too large, must be strictly less than 512 KB.
+    return false;
+  }
+
+  uint64 a1 = 1;
+  uint64 a2 = 1;
+  uint64 b1 = 0;
+  uint64 b2 = 0;
+
+  class Pattern *pattern = pe->pattern;
+
+  unsigned int i = 0;
+  while (i < count) {
+    // Process 64 bits at a time.
+    if ((i & 0x7) == 0) {
+      data.l64 = srcmem64[i];
+      dstdata.l64 = dstmem64[i];
+      uint64 src_tag = addr_to_tag(&srcmem64[i]);
+      uint64 dst_tag = addr_to_tag(&dstmem64[i]);
+      // Detect if tags have been corrupted.
+      if (data.l64 != src_tag)
+        ReportTagError(&srcmem64[i], data.l64, src_tag);
+      if (dstdata.l64 != dst_tag)
+        ReportTagError(&dstmem64[i], dstdata.l64, dst_tag);
+
+      data.l32.l = pattern->pattern(i << 1);
+      data.l32.h = pattern->pattern((i << 1) + 1);
+      a1 = a1 + data.l32.l;
+      b1 = b1 + a1;
+      a1 = a1 + data.l32.h;
+      b1 = b1 + a1;
+
+      data.l64  = dst_tag;
+      dstmem64[i] = data.l64;
+
+    } else {
+      data.l64 = srcmem64[i];
+      a1 = a1 + data.l32.l;
+      b1 = b1 + a1;
+      a1 = a1 + data.l32.h;
+      b1 = b1 + a1;
+      dstmem64[i] = data.l64;
+    }
+    i++;
+
+    data.l64 = srcmem64[i];
+    a2 = a2 + data.l32.l;
+    b2 = b2 + a2;
+    a2 = a2 + data.l32.h;
+    b2 = b2 + a2;
+    dstmem64[i] = data.l64;
+    i++;
+  }
+  checksum->Set(a1, a2, b1, b2);
+  return true;
+}
+
+// x86_64 SSE2 assembly implementation of Adler memory copy, with address
+// tagging added as a second step. This is useful for debugging failures
+// that only occur when SSE / nontemporal writes are used.
+bool WorkerThread::AdlerAddrMemcpyWarm(uint64 *dstmem64,
+                                       uint64 *srcmem64,
+                                       unsigned int size_in_bytes,
+                                       AdlerChecksum *checksum,
+                                       struct page_entry *pe) {
+  // Do ASM copy, ignore checksum.
+  AdlerChecksum ignored_checksum;
+  os_->AdlerMemcpyWarm(dstmem64, srcmem64, size_in_bytes, &ignored_checksum);
+
+  // Force cache flush.
+  int length = size_in_bytes / sizeof(*dstmem64);
+  for (int i = 0; i < length; i += sizeof(*dstmem64)) {
+    os_->FastFlush(dstmem64 + i);
+    os_->FastFlush(srcmem64 + i);
+  }
+  // Check results.
+  AdlerAddrCrcC(srcmem64, size_in_bytes, checksum, pe);
+  // Patch up address tags.
+  TagAddrC(dstmem64, size_in_bytes);
+  return true;
+}
+
+// Retag pages..
+bool WorkerThread::TagAddrC(uint64 *memwords,
+                            unsigned int size_in_bytes) {
+  // Mask is the bitmask of indexes used by the pattern.
+  // It is the pattern size -1. Size is always a power of 2.
+
+  // Select tag or data as appropriate.
+  int length = size_in_bytes / wordsize_;
+  for (int i = 0; i < length; i += 8) {
+    datacast_t data;
+    data.l64 = addr_to_tag(&memwords[i]);
+    memwords[i] = data.l64;
+  }
+  return true;
+}
+
+// C implementation of Adler memory crc.
+bool WorkerThread::AdlerAddrCrcC(uint64 *srcmem64,
+                                 unsigned int size_in_bytes,
+                                 AdlerChecksum *checksum,
+                                 struct page_entry *pe) {
+  // Use this data wrapper to access memory with 64bit read/write.
+  datacast_t data;
+  unsigned int count = size_in_bytes / sizeof(data);
+
+  if (count > ((1U) << 19)) {
+    // Size is too large, must be strictly less than 512 KB.
+    return false;
+  }
+
+  uint64 a1 = 1;
+  uint64 a2 = 1;
+  uint64 b1 = 0;
+  uint64 b2 = 0;
+
+  class Pattern *pattern = pe->pattern;
+
+  unsigned int i = 0;
+  while (i < count) {
+    // Process 64 bits at a time.
+    if ((i & 0x7) == 0) {
+      data.l64 = srcmem64[i];
+      uint64 src_tag = addr_to_tag(&srcmem64[i]);
+      // Check that tags match expected.
+      if (data.l64 != src_tag)
+        ReportTagError(&srcmem64[i], data.l64, src_tag);
+
+      data.l32.l = pattern->pattern(i << 1);
+      data.l32.h = pattern->pattern((i << 1) + 1);
+      a1 = a1 + data.l32.l;
+      b1 = b1 + a1;
+      a1 = a1 + data.l32.h;
+      b1 = b1 + a1;
+    } else {
+      data.l64 = srcmem64[i];
+      a1 = a1 + data.l32.l;
+      b1 = b1 + a1;
+      a1 = a1 + data.l32.h;
+      b1 = b1 + a1;
+    }
+    i++;
+
+    data.l64 = srcmem64[i];
+    a2 = a2 + data.l32.l;
+    b2 = b2 + a2;
+    a2 = a2 + data.l32.h;
+    b2 = b2 + a2;
+    i++;
+  }
+  checksum->Set(a1, a2, b1, b2);
+  return true;
+}
+
+// Copy a block of memory quickly, while keeping a CRC of the data.
+// Result check if the CRC mismatches.
+int WorkerThread::CrcCopyPage(struct page_entry *dstpe,
+                              struct page_entry *srcpe) {
+  int errors = 0;
+  const int blocksize = 4096;
+  const int blockwords = blocksize / wordsize_;
+  int blocks = sat_->page_length() / blocksize;
+
+  // Base addresses for memory copy
+  uint64 *targetmembase = static_cast<uint64*>(dstpe->addr);
+  uint64 *sourcemembase = static_cast<uint64*>(srcpe->addr);
+  // Remember the expected CRC
+  const AdlerChecksum *expectedcrc = srcpe->pattern->crc();
+
+  for (int currentblock = 0; currentblock < blocks; currentblock++) {
+    uint64 *targetmem = targetmembase + currentblock * blockwords;
+    uint64 *sourcemem = sourcemembase + currentblock * blockwords;
+
+    AdlerChecksum crc;
+    if (tag_mode_) {
+      AdlerAddrMemcpyC(targetmem, sourcemem, blocksize, &crc, srcpe);
+    } else {
+      AdlerMemcpyC(targetmem, sourcemem, blocksize, &crc);
+    }
+
+    // Investigate miscompares.
+    if (!crc.Equals(*expectedcrc)) {
+      logprintf(11, "Log: CrcCopyPage Falling through to slow compare, "
+                "CRC mismatch %s != %s\n", crc.ToHexString().c_str(),
+                expectedcrc->ToHexString().c_str());
+      int errorcount = CheckRegion(sourcemem,
+                                   srcpe->pattern,
+                                   blocksize,
+                                   currentblock * blocksize, 0);
+      if (errorcount == 0) {
+        logprintf(0, "Log: CrcCopyPage CRC mismatch %s != %s, "
+                     "but no miscompares found. Retrying with fresh data.\n",
+                  crc.ToHexString().c_str(),
+                  expectedcrc->ToHexString().c_str());
+        if (!tag_mode_) {
+          // Copy the data originally read from this region back again.
+          // This data should have any corruption read originally while
+          // calculating the CRC.
+          memcpy(sourcemem, targetmem, blocksize);
+          errorcount = CheckRegion(sourcemem,
+                                   srcpe->pattern,
+                                   blocksize,
+                                   currentblock * blocksize, 0);
+          if (errorcount == 0) {
+            int apic_id = apicid();
+            logprintf(0, "Process Error: CPU %d(0x%s) CrcCopyPage "
+                         "CRC mismatch %s != %s, "
+                         "but no miscompares found on second pass.\n",
+                      apic_id, CurrentCpusFormat().c_str(),
+                      crc.ToHexString().c_str(),
+                      expectedcrc->ToHexString().c_str());
+            struct ErrorRecord er;
+            er.actual = sourcemem[0];
+            er.expected = 0x0;
+            er.vaddr = sourcemem;
+            ProcessError(&er, 0, "Hardware Error");
+          }
+        }
+      }
+      errors += errorcount;
+    }
+  }
+
+  // For odd length transfers, we should never hit this.
+  int leftovers = sat_->page_length() % blocksize;
+  if (leftovers) {
+    uint64 *targetmem = targetmembase + blocks * blockwords;
+    uint64 *sourcemem = sourcemembase + blocks * blockwords;
+
+    errors += CheckRegion(sourcemem,
+                          srcpe->pattern,
+                          leftovers,
+                          blocks * blocksize, 0);
+    int leftoverwords = leftovers / wordsize_;
+    for (int i = 0; i < leftoverwords; i++) {
+      targetmem[i] = sourcemem[i];
+    }
+  }
+
+  // Update pattern reference to reflect new contents.
+  dstpe->pattern = srcpe->pattern;
+
+  // Clean clean clean the errors away.
+  if (errors) {
+    // TODO(nsanders): Maybe we should patch rather than fill? Filling may
+    // cause bad data to be propogated across the page.
+    FillPage(dstpe);
+  }
+  return errors;
+}
+
+
+
+// Invert a block of memory quickly, traversing downwards.
+int InvertThread::InvertPageDown(struct page_entry *srcpe) {
+  const int blocksize = 4096;
+  const int blockwords = blocksize / wordsize_;
+  int blocks = sat_->page_length() / blocksize;
+
+  // Base addresses for memory copy
+  unsigned int *sourcemembase = static_cast<unsigned int *>(srcpe->addr);
+
+  for (int currentblock = blocks-1; currentblock >= 0; currentblock--) {
+    unsigned int *sourcemem = sourcemembase + currentblock * blockwords;
+    for (int i = blockwords - 32; i >= 0; i -= 32) {
+      for (int index = i + 31; index >= i; --index) {
+        unsigned int actual = sourcemem[index];
+        sourcemem[index] = ~actual;
+      }
+      OsLayer::FastFlush(&sourcemem[i]);
+    }
+  }
+
+  return 0;
+}
+
+// Invert a block of memory, traversing upwards.
+int InvertThread::InvertPageUp(struct page_entry *srcpe) {
+  const int blocksize = 4096;
+  const int blockwords = blocksize / wordsize_;
+  int blocks = sat_->page_length() / blocksize;
+
+  // Base addresses for memory copy
+  unsigned int *sourcemembase = static_cast<unsigned int *>(srcpe->addr);
+
+  for (int currentblock = 0; currentblock < blocks; currentblock++) {
+    unsigned int *sourcemem = sourcemembase + currentblock * blockwords;
+    for (int i = 0; i < blockwords; i += 32) {
+      for (int index = i; index <= i + 31; ++index) {
+        unsigned int actual = sourcemem[index];
+        sourcemem[index] = ~actual;
+      }
+      OsLayer::FastFlush(&sourcemem[i]);
+    }
+  }
+  return 0;
+}
+
+// Copy a block of memory quickly, while keeping a CRC of the data.
+// Result check if the CRC mismatches. Warm the CPU while running
+int WorkerThread::CrcWarmCopyPage(struct page_entry *dstpe,
+                                  struct page_entry *srcpe) {
+  int errors = 0;
+  const int blocksize = 4096;
+  const int blockwords = blocksize / wordsize_;
+  int blocks = sat_->page_length() / blocksize;
+
+  // Base addresses for memory copy
+  uint64 *targetmembase = static_cast<uint64*>(dstpe->addr);
+  uint64 *sourcemembase = static_cast<uint64*>(srcpe->addr);
+  // Remember the expected CRC
+  const AdlerChecksum *expectedcrc = srcpe->pattern->crc();
+
+  for (int currentblock = 0; currentblock < blocks; currentblock++) {
+    uint64 *targetmem = targetmembase + currentblock * blockwords;
+    uint64 *sourcemem = sourcemembase + currentblock * blockwords;
+
+    AdlerChecksum crc;
+    if (tag_mode_) {
+      AdlerAddrMemcpyWarm(targetmem, sourcemem, blocksize, &crc, srcpe);
+    } else {
+      os_->AdlerMemcpyWarm(targetmem, sourcemem, blocksize, &crc);
+    }
+
+    // Investigate miscompares.
+    if (!crc.Equals(*expectedcrc)) {
+      logprintf(11, "Log: CrcWarmCopyPage Falling through to slow compare, "
+                "CRC mismatch %s != %s\n", crc.ToHexString().c_str(),
+                expectedcrc->ToHexString().c_str());
+      int errorcount = CheckRegion(sourcemem,
+                                   srcpe->pattern,
+                                   blocksize,
+                                   currentblock * blocksize, 0);
+      if (errorcount == 0) {
+        logprintf(0, "Log: CrcWarmCopyPage CRC mismatch %s != %s, "
+                     "but no miscompares found. Retrying with fresh data.\n",
+                  crc.ToHexString().c_str(),
+                  expectedcrc->ToHexString().c_str());
+        if (!tag_mode_) {
+          // Copy the data originally read from this region back again.
+          // This data should have any corruption read originally while
+          // calculating the CRC.
+          memcpy(sourcemem, targetmem, blocksize);
+          errorcount = CheckRegion(sourcemem,
+                                   srcpe->pattern,
+                                   blocksize,
+                                   currentblock * blocksize, 0);
+          if (errorcount == 0) {
+            int apic_id = apicid();
+            logprintf(0, "Process Error: CPU %d(0x%s) CrciWarmCopyPage "
+                         "CRC mismatch %s != %s, "
+                         "but no miscompares found on second pass.\n",
+                      apic_id, CurrentCpusFormat().c_str(),
+                      crc.ToHexString().c_str(),
+                      expectedcrc->ToHexString().c_str());
+            struct ErrorRecord er;
+            er.actual = sourcemem[0];
+            er.expected = 0x0;
+            er.vaddr = sourcemem;
+            ProcessError(&er, 0, "Hardware Error");
+          }
+        }
+      }
+      errors += errorcount;
+    }
+  }
+
+  // For odd length transfers, we should never hit this.
+  int leftovers = sat_->page_length() % blocksize;
+  if (leftovers) {
+    uint64 *targetmem = targetmembase + blocks * blockwords;
+    uint64 *sourcemem = sourcemembase + blocks * blockwords;
+
+    errors += CheckRegion(sourcemem,
+                          srcpe->pattern,
+                          leftovers,
+                          blocks * blocksize, 0);
+    int leftoverwords = leftovers / wordsize_;
+    for (int i = 0; i < leftoverwords; i++) {
+      targetmem[i] = sourcemem[i];
+    }
+  }
+
+  // Update pattern reference to reflect new contents.
+  dstpe->pattern = srcpe->pattern;
+
+  // Clean clean clean the errors away.
+  if (errors) {
+    // TODO(nsanders): Maybe we should patch rather than fill? Filling may
+    // cause bad data to be propogated across the page.
+    FillPage(dstpe);
+  }
+  return errors;
+}
+
+
+
+// Memory check work loop. Execute until done, then exhaust pages.
+bool CheckThread::Work() {
+  struct page_entry pe;
+  bool result = true;
+  int64 loops = 0;
+
+  logprintf(9, "Log: Starting Check thread %d\n", thread_num_);
+
+  // We want to check all the pages, and
+  // stop when there aren't any left.
+  while (true) {
+    result = result && sat_->GetValid(&pe);
+    if (!result) {
+      if (IsReadyToRunNoPause())
+        logprintf(0, "Process Error: check_thread failed to pop pages, "
+                  "bailing\n");
+      else
+        result = true;
+      break;
+    }
+
+    // Do the result check.
+    CrcCheckPage(&pe);
+
+    // Push pages back on the valid queue if we are still going,
+    // throw them out otherwise.
+    if (IsReadyToRunNoPause())
+      result = result && sat_->PutValid(&pe);
+    else
+      result = result && sat_->PutEmpty(&pe);
+    if (!result) {
+      logprintf(0, "Process Error: check_thread failed to push pages, "
+                "bailing\n");
+      break;
+    }
+    loops++;
+  }
+
+  pages_copied_ = loops;
+  status_ = result;
+  logprintf(9, "Log: Completed %d: Check thread. Status %d, %d pages checked\n",
+            thread_num_, status_, pages_copied_);
+  return result;
+}
+
+
+// Memory copy work loop. Execute until marked done.
+bool CopyThread::Work() {
+  struct page_entry src;
+  struct page_entry dst;
+  bool result = true;
+  int64 loops = 0;
+
+  logprintf(9, "Log: Starting copy thread %d: cpu %s, mem %x\n",
+            thread_num_, cpuset_format(&cpu_mask_).c_str(), tag_);
+
+  while (IsReadyToRun()) {
+    // Pop the needed pages.
+    result = result && sat_->GetValid(&src, tag_);
+    result = result && sat_->GetEmpty(&dst, tag_);
+    if (!result) {
+      logprintf(0, "Process Error: copy_thread failed to pop pages, "
+                "bailing\n");
+      break;
+    }
+
+    // Force errors for unittests.
+    if (sat_->error_injection()) {
+      if (loops == 8) {
+        char *addr = reinterpret_cast<char*>(src.addr);
+        int offset = random() % sat_->page_length();
+        addr[offset] = 0xba;
+      }
+    }
+
+    // We can use memcpy, or CRC check while we copy.
+    if (sat_->warm()) {
+      CrcWarmCopyPage(&dst, &src);
+    } else if (sat_->strict()) {
+      CrcCopyPage(&dst, &src);
+    } else {
+      memcpy(dst.addr, src.addr, sat_->page_length());
+      dst.pattern = src.pattern;
+    }
+
+    result = result && sat_->PutValid(&dst);
+    result = result && sat_->PutEmpty(&src);
+
+    // Copy worker-threads yield themselves at the end of each copy loop,
+    // to avoid threads from preempting each other in the middle of the inner
+    // copy-loop. Cooperations between Copy worker-threads results in less
+    // unnecessary cache thrashing (which happens when context-switching in the
+    // middle of the inner copy-loop).
+    YieldSelf();
+
+    if (!result) {
+      logprintf(0, "Process Error: copy_thread failed to push pages, "
+                "bailing\n");
+      break;
+    }
+    loops++;
+  }
+
+  pages_copied_ = loops;
+  status_ = result;
+  logprintf(9, "Log: Completed %d: Copy thread. Status %d, %d pages copied\n",
+            thread_num_, status_, pages_copied_);
+  return result;
+}
+
+// Memory invert work loop. Execute until marked done.
+bool InvertThread::Work() {
+  struct page_entry src;
+  bool result = true;
+  int64 loops = 0;
+
+  logprintf(9, "Log: Starting invert thread %d\n", thread_num_);
+
+  while (IsReadyToRun()) {
+    // Pop the needed pages.
+    result = result && sat_->GetValid(&src);
+    if (!result) {
+      logprintf(0, "Process Error: invert_thread failed to pop pages, "
+                "bailing\n");
+      break;
+    }
+
+    if (sat_->strict())
+      CrcCheckPage(&src);
+
+    // For the same reason CopyThread yields itself (see YieldSelf comment
+    // in CopyThread::Work(), InvertThread yields itself after each invert
+    // operation to improve cooperation between different worker threads
+    // stressing the memory/cache.
+    InvertPageUp(&src);
+    YieldSelf();
+    InvertPageDown(&src);
+    YieldSelf();
+    InvertPageDown(&src);
+    YieldSelf();
+    InvertPageUp(&src);
+    YieldSelf();
+
+    if (sat_->strict())
+      CrcCheckPage(&src);
+
+    result = result && sat_->PutValid(&src);
+    if (!result) {
+      logprintf(0, "Process Error: invert_thread failed to push pages, "
+                "bailing\n");
+      break;
+    }
+    loops++;
+  }
+
+  pages_copied_ = loops * 2;
+  status_ = result;
+  logprintf(9, "Log: Completed %d: Copy thread. Status %d, %d pages copied\n",
+            thread_num_, status_, pages_copied_);
+  return result;
+}
+
+
+// Set file name to use for File IO.
+void FileThread::SetFile(const char *filename_init) {
+  filename_ = filename_init;
+  devicename_ = os_->FindFileDevice(filename_);
+}
+
+// Open the file for access.
+bool FileThread::OpenFile(int *pfile) {
+  int fd = open(filename_.c_str(),
+                O_RDWR | O_CREAT | O_SYNC | O_DIRECT,
+                0644);
+  if (fd < 0) {
+    logprintf(0, "Process Error: Failed to create file %s!!\n",
+              filename_.c_str());
+    pages_copied_ = 0;
+    return false;
+  }
+  *pfile = fd;
+  return true;
+}
+
+// Close the file.
+bool FileThread::CloseFile(int fd) {
+  close(fd);
+  return true;
+}
+
+// Check sector tagging.
+bool FileThread::SectorTagPage(struct page_entry *src, int block) {
+  int page_length = sat_->page_length();
+  struct FileThread::SectorTag *tag =
+    (struct FileThread::SectorTag *)(src->addr);
+
+  // Tag each sector.
+  unsigned char magic = ((0xba + thread_num_) & 0xff);
+  for (int sec = 0; sec < page_length / 512; sec++) {
+    tag[sec].magic = magic;
+    tag[sec].block = block & 0xff;
+    tag[sec].sector = sec & 0xff;
+    tag[sec].pass = pass_ & 0xff;
+  }
+  return true;
+}
+
+bool FileThread::WritePageToFile(int fd, struct page_entry *src) {
+  int page_length = sat_->page_length();
+  // Fill the file with our data.
+  int64 size = write(fd, src->addr, page_length);
+
+  if (size != page_length) {
+    os_->ErrorReport(devicename_.c_str(), "write-error", 1);
+    errorcount_++;
+    logprintf(0, "Block Error: file_thread failed to write, "
+              "bailing\n");
+    return false;
+  }
+  return true;
+}
+
+// Write the data to the file.
+bool FileThread::WritePages(int fd) {
+  int strict = sat_->strict();
+
+  // Start fresh at beginning of file for each batch of pages.
+  lseek64(fd, 0, SEEK_SET);
+  for (int i = 0; i < sat_->disk_pages(); i++) {
+    struct page_entry src;
+    if (!GetValidPage(&src))
+      return false;
+    // Save expected pattern.
+    page_recs_[i].pattern = src.pattern;
+    page_recs_[i].src = src.addr;
+
+    // Check data correctness.
+    if (strict)
+      CrcCheckPage(&src);
+
+    SectorTagPage(&src, i);
+
+    bool result = WritePageToFile(fd, &src);
+
+    if (!PutEmptyPage(&src))
+      return false;
+
+    if (!result)
+      return false;
+  }
+  return true;
+}
+
+// Copy data from file into memory block.
+bool FileThread::ReadPageFromFile(int fd, struct page_entry *dst) {
+  int page_length = sat_->page_length();
+
+  // Do the actual read.
+  int64 size = read(fd, dst->addr, page_length);
+  if (size != page_length) {
+    os_->ErrorReport(devicename_.c_str(), "read-error", 1);
+    logprintf(0, "Block Error: file_thread failed to read, "
+              "bailing\n");
+    errorcount_++;
+    return false;
+  }
+  return true;
+}
+
+// Check sector tagging.
+bool FileThread::SectorValidatePage(const struct PageRec &page,
+                                    struct page_entry *dst, int block) {
+  // Error injection.
+  static int calls = 0;
+  calls++;
+
+  // Do sector tag compare.
+  int firstsector = -1;
+  int lastsector = -1;
+  bool badsector = false;
+  int page_length = sat_->page_length();
+
+  // Cast data block into an array of tagged sectors.
+  struct FileThread::SectorTag *tag =
+  (struct FileThread::SectorTag *)(dst->addr);
+
+  sat_assert(sizeof(*tag) == 512);
+
+  // Error injection.
+  if (sat_->error_injection()) {
+    if (calls == 2) {
+      for (int badsec = 8; badsec < 17; badsec++)
+        tag[badsec].pass = 27;
+    }
+    if (calls == 18) {
+      (static_cast<int32*>(dst->addr))[27] = 0xbadda7a;
+    }
+  }
+
+  // Check each sector for the correct tag we added earlier,
+  // then revert the tag to the to normal data pattern.
+  unsigned char magic = ((0xba + thread_num_) & 0xff);
+  for (int sec = 0; sec < page_length / 512; sec++) {
+    // Check magic tag.
+    if ((tag[sec].magic != magic) ||
+        (tag[sec].block != (block & 0xff)) ||
+        (tag[sec].sector != (sec & 0xff)) ||
+        (tag[sec].pass != (pass_ & 0xff))) {
+      // Offset calculation for tag location.
+      int offset = sec * sizeof(SectorTag);
+      if (tag[sec].block != (block & 0xff))
+        offset += 1 * sizeof(uint8);
+      else if (tag[sec].sector != (sec & 0xff))
+        offset += 2 * sizeof(uint8);
+      else if (tag[sec].pass != (pass_ & 0xff))
+        offset += 3 * sizeof(uint8);
+
+      // Run sector tag error through diagnoser for logging and reporting.
+      errorcount_ += 1;
+      os_->error_diagnoser_->AddHDDSectorTagError(devicename_, tag[sec].block,
+                                                  offset,
+                                                  tag[sec].sector,
+                                                  page.src, page.dst);
+
+      logprintf(5, "Sector Error: Sector tag @ 0x%x, pass %d/%d. "
+                "sec %x/%x, block %d/%d, magic %x/%x, File: %s \n",
+                block * page_length + 512 * sec,
+                (pass_ & 0xff), (unsigned int)tag[sec].pass,
+                sec, (unsigned int)tag[sec].sector,
+                block, (unsigned int)tag[sec].block,
+                magic, (unsigned int)tag[sec].magic,
+                filename_.c_str());
+
+      // Keep track of first and last bad sector.
+      if (firstsector == -1)
+        firstsector = (block * page_length / 512) + sec;
+      lastsector = (block * page_length / 512) + sec;
+      badsector = true;
+    }
+    // Patch tag back to proper pattern.
+    unsigned int *addr = (unsigned int *)(&tag[sec]);
+    *addr = dst->pattern->pattern(512 * sec / sizeof(*addr));
+  }
+
+  // If we found sector errors:
+  if (badsector == true) {
+    logprintf(5, "Log: file sector miscompare at offset %x-%x. File: %s\n",
+              firstsector * 512,
+              ((lastsector + 1) * 512) - 1,
+              filename_.c_str());
+
+    // Either exit immediately, or patch the data up and continue.
+    if (sat_->stop_on_error()) {
+      exit(1);
+    } else {
+      // Patch up bad pages.
+      for (int block = (firstsector * 512) / page_length;
+          block <= (lastsector * 512) / page_length;
+          block++) {
+        unsigned int *memblock = static_cast<unsigned int *>(dst->addr);
+        int length = page_length / wordsize_;
+        for (int i = 0; i < length; i++) {
+          memblock[i] = dst->pattern->pattern(i);
+        }
+      }
+    }
+  }
+  return true;
+}
+
+// Get memory for an incoming data transfer..
+bool FileThread::PagePrepare() {
+  // We can only do direct IO to SAT pages if it is normal mem.
+  page_io_ = os_->normal_mem();
+
+  // Init a local buffer if we need it.
+  if (!page_io_) {
+    int result = posix_memalign(&local_page_, 512, sat_->page_length());
+    if (result) {
+      logprintf(0, "Process Error: disk thread posix_memalign "
+                   "returned %d (fail)\n",
+                result);
+      status_ = false;
+      return false;
+    }
+  }
+  return true;
+}
+
+
+// Remove memory allocated for data transfer.
+bool FileThread::PageTeardown() {
+  // Free a local buffer if we need to.
+  if (!page_io_) {
+    free(local_page_);
+  }
+  return true;
+}
+
+
+
+// Get memory for an incoming data transfer..
+bool FileThread::GetEmptyPage(struct page_entry *dst) {
+  if (page_io_) {
+    if (!sat_->GetEmpty(dst))
+      return false;
+  } else {
+    dst->addr = local_page_;
+    dst->offset = 0;
+    dst->pattern = 0;
+  }
+  return true;
+}
+
+// Get memory for an outgoing data transfer..
+bool FileThread::GetValidPage(struct page_entry *src) {
+  struct page_entry tmp;
+  if (!sat_->GetValid(&tmp))
+    return false;
+  if (page_io_) {
+    *src = tmp;
+    return true;
+  } else {
+    src->addr = local_page_;
+    src->offset = 0;
+    CrcCopyPage(src, &tmp);
+    if (!sat_->PutValid(&tmp))
+      return false;
+  }
+  return true;
+}
+
+
+// Throw out a used empty page.
+bool FileThread::PutEmptyPage(struct page_entry *src) {
+  if (page_io_) {
+    if (!sat_->PutEmpty(src))
+      return false;
+  }
+  return true;
+}
+
+// Throw out a used, filled page.
+bool FileThread::PutValidPage(struct page_entry *src) {
+  if (page_io_) {
+    if (!sat_->PutValid(src))
+      return false;
+  }
+  return true;
+}
+
+// Copy data from file into memory blocks.
+bool FileThread::ReadPages(int fd) {
+  int page_length = sat_->page_length();
+  int strict = sat_->strict();
+  bool result = true;
+
+  // Read our data back out of the file, into it's new location.
+  lseek64(fd, 0, SEEK_SET);
+  for (int i = 0; i < sat_->disk_pages(); i++) {
+    struct page_entry dst;
+    if (!GetEmptyPage(&dst))
+      return false;
+    // Retrieve expected pattern.
+    dst.pattern = page_recs_[i].pattern;
+    // Update page recordpage record.
+    page_recs_[i].dst = dst.addr;
+
+    // Read from the file into destination page.
+    if (!ReadPageFromFile(fd, &dst)) {
+        PutEmptyPage(&dst);
+        return false;
+    }
+
+    SectorValidatePage(page_recs_[i], &dst, i);
+
+    // Ensure that the transfer ended up with correct data.
+    if (strict) {
+      // Record page index currently CRC checked.
+      crc_page_ = i;
+      int errors = CrcCheckPage(&dst);
+      if (errors) {
+        logprintf(5, "Log: file miscompare at block %d, "
+                  "offset %x-%x. File: %s\n",
+                  i, i * page_length, ((i + 1) * page_length) - 1,
+                  filename_.c_str());
+        result = false;
+      }
+      crc_page_ = -1;
+      errorcount_ += errors;
+    }
+    if (!PutValidPage(&dst))
+      return false;
+  }
+  return result;
+}
+
+// File IO work loop. Execute until marked done.
+bool FileThread::Work() {
+  bool result = true;
+  int64 loops = 0;
+
+  logprintf(9, "Log: Starting file thread %d, file %s, device %s\n",
+            thread_num_,
+            filename_.c_str(),
+            devicename_.c_str());
+
+  if (!PagePrepare()) {
+    status_ = false;
+    return false;
+  }
+
+  // Open the data IO file.
+  int fd = 0;
+  if (!OpenFile(&fd)) {
+    status_ = false;
+    return false;
+  }
+
+  pass_ = 0;
+
+  // Load patterns into page records.
+  page_recs_ = new struct PageRec[sat_->disk_pages()];
+  for (int i = 0; i < sat_->disk_pages(); i++) {
+    page_recs_[i].pattern = new struct Pattern();
+  }
+
+  // Loop until done.
+  while (IsReadyToRun()) {
+    // Do the file write.
+    if (!(result = result && WritePages(fd)))
+      break;
+
+    // Do the file read.
+    if (!(result = result && ReadPages(fd)))
+      break;
+
+    loops++;
+    pass_ = loops;
+  }
+
+  pages_copied_ = loops * sat_->disk_pages();
+
+  // Clean up.
+  CloseFile(fd);
+  PageTeardown();
+
+  logprintf(9, "Log: Completed %d: file thread status %d, %d pages copied\n",
+            thread_num_, status_, pages_copied_);
+  // Failure to read from device indicates hardware,
+  // rather than procedural SW error.
+  status_ = true;
+  return true;
+}
+
+bool NetworkThread::IsNetworkStopSet() {
+  return !IsReadyToRunNoPause();
+}
+
+bool NetworkSlaveThread::IsNetworkStopSet() {
+  // This thread has no completion status.
+  // It finishes whever there is no more data to be
+  // passed back.
+  return true;
+}
+
+// Set ip name to use for Network IO.
+void NetworkThread::SetIP(const char *ipaddr_init) {
+  strncpy(ipaddr_, ipaddr_init, 256);
+}
+
+// Create a socket.
+// Return 0 on error.
+bool NetworkThread::CreateSocket(int *psocket) {
+  int sock = socket(AF_INET, SOCK_STREAM, 0);
+  if (sock == -1) {
+    logprintf(0, "Process Error: Cannot open socket\n");
+    pages_copied_ = 0;
+    status_ = false;
+    return false;
+  }
+  *psocket = sock;
+  return true;
+}
+
+// Close the socket.
+bool NetworkThread::CloseSocket(int sock) {
+  close(sock);
+  return true;
+}
+
+// Initiate the tcp connection.
+bool NetworkThread::Connect(int sock) {
+  struct sockaddr_in dest_addr;
+  dest_addr.sin_family = AF_INET;
+  dest_addr.sin_port = htons(kNetworkPort);
+  memset(&(dest_addr.sin_zero), '\0', sizeof(dest_addr.sin_zero));
+
+  // Translate dot notation to u32.
+  if (inet_aton(ipaddr_, &dest_addr.sin_addr) == 0) {
+    logprintf(0, "Process Error: Cannot resolve %s\n", ipaddr_);
+    pages_copied_ = 0;
+    status_ = false;
+    return false;
+  }
+
+  if (-1 == connect(sock, reinterpret_cast<struct sockaddr *>(&dest_addr),
+                    sizeof(struct sockaddr))) {
+    logprintf(0, "Process Error: Cannot connect %s\n", ipaddr_);
+    pages_copied_ = 0;
+    status_ = false;
+    return false;
+  }
+  return true;
+}
+
+// Initiate the tcp connection.
+bool NetworkListenThread::Listen() {
+  struct sockaddr_in sa;
+
+  memset(&(sa.sin_zero), '\0', sizeof(sa.sin_zero));
+
+  sa.sin_family = AF_INET;
+  sa.sin_addr.s_addr = INADDR_ANY;
+  sa.sin_port = htons(kNetworkPort);
+
+  if (-1 == bind(sock_, (struct sockaddr*)&sa, sizeof(struct sockaddr))) {
+    char buf[256];
+    sat_strerror(errno, buf, sizeof(buf));
+    logprintf(0, "Process Error: Cannot bind socket: %s\n", buf);
+    pages_copied_ = 0;
+    status_ = false;
+    return false;
+  }
+  listen(sock_, 3);
+  return true;
+}
+
+// Wait for a connection from a network traffic generation thread.
+bool NetworkListenThread::Wait() {
+    fd_set rfds;
+    struct timeval tv;
+    int retval;
+
+    // Watch sock_ to see when it has input.
+    FD_ZERO(&rfds);
+    FD_SET(sock_, &rfds);
+    // Wait up to five seconds.
+    tv.tv_sec = 5;
+    tv.tv_usec = 0;
+
+    retval = select(sock_ + 1, &rfds, NULL, NULL, &tv);
+
+    return (retval > 0);
+}
+
+// Wait for a connection from a network traffic generation thread.
+bool NetworkListenThread::GetConnection(int *pnewsock) {
+  struct sockaddr_in sa;
+  socklen_t size = sizeof(struct sockaddr_in);
+
+  int newsock = accept(sock_, reinterpret_cast<struct sockaddr *>(&sa), &size);
+  if (newsock < 0)  {
+    logprintf(0, "Process Error: Did not receive connection\n");
+    pages_copied_ = 0;
+    status_ = false;
+    return false;
+  }
+  *pnewsock = newsock;
+  return true;
+}
+
+// Send a page, return false if a page was not sent.
+bool NetworkThread::SendPage(int sock, struct page_entry *src) {
+  int page_length = sat_->page_length();
+  char *address = static_cast<char*>(src->addr);
+
+  // Send our data over the network.
+  int size = page_length;
+  while (size) {
+    int transferred = send(sock, address + (page_length - size), size, 0);
+    if ((transferred == 0) || (transferred == -1)) {
+      if (!IsNetworkStopSet()) {
+        char buf[256] = "";
+        sat_strerror(errno, buf, sizeof(buf));
+        logprintf(0, "Process Error: Thread %d, "
+                     "Network write failed, bailing. (%s)\n",
+                  thread_num_, buf);
+        status_ = false;
+      }
+      return false;
+    }
+    size = size - transferred;
+  }
+  return true;
+}
+
+// Receive a page. Return false if a page was not received.
+bool NetworkThread::ReceivePage(int sock, struct page_entry *dst) {
+  int page_length = sat_->page_length();
+  char *address = static_cast<char*>(dst->addr);
+
+  // Maybe we will get our data back again, maybe not.
+  int size = page_length;
+  while (size) {
+    int transferred = recv(sock, address + (page_length - size), size, 0);
+    if ((transferred == 0) || (transferred == -1)) {
+      // Typically network slave thread should exit as network master
+      // thread stops sending data.
+      if (IsNetworkStopSet()) {
+        int err = errno;
+        if (transferred == 0 && err == 0) {
+          // Two system setups will not sync exactly,
+          // allow early exit, but log it.
+          logprintf(0, "Log: Net thread did not receive any data, exiting.\n");
+        } else {
+          char buf[256] = "";
+          sat_strerror(err, buf, sizeof(buf));
+          // Print why we failed.
+          logprintf(0, "Process Error: Thread %d, "
+                       "Network read failed, bailing (%s).\n",
+                    thread_num_, buf);
+          status_ = false;
+          // Print arguments and results.
+          logprintf(0, "Log: recv(%d, address %x, size %x, 0) == %x, err %d\n",
+                    sock, address + (page_length - size),
+                    size, transferred, err);
+          if ((transferred == 0) &&
+              (page_length - size < 512) &&
+              (page_length - size > 0)) {
+            // Print null terminated data received, to see who's been
+            // sending us supicious unwanted data.
+            address[page_length - size] = 0;
+            logprintf(0, "Log: received  %d bytes: '%s'\n",
+                      page_length - size, address);
+          }
+        }
+      }
+      return false;
+    }
+    size = size - transferred;
+  }
+  return true;
+}
+
+// Network IO work loop. Execute until marked done.
+// Return true if the thread ran as expected.
+bool NetworkThread::Work() {
+  logprintf(9, "Log: Starting network thread %d, ip %s\n",
+            thread_num_,
+            ipaddr_);
+
+  // Make a socket.
+  int sock = 0;
+  if (!CreateSocket(&sock))
+    return false;
+
+  // Network IO loop requires network slave thread to have already initialized.
+  // We will sleep here for awhile to ensure that the slave thread will be
+  // listening by the time we connect.
+  // Sleep for 15 seconds.
+  sat_sleep(15);
+  logprintf(9, "Log: Starting execution of network thread %d, ip %s\n",
+            thread_num_,
+            ipaddr_);
+
+
+  // Connect to a slave thread.
+  if (!Connect(sock))
+    return false;
+
+  // Loop until done.
+  bool result = true;
+  int strict = sat_->strict();
+  int64 loops = 0;
+  while (IsReadyToRun()) {
+    struct page_entry src;
+    struct page_entry dst;
+    result = result && sat_->GetValid(&src);
+    result = result && sat_->GetEmpty(&dst);
+    if (!result) {
+      logprintf(0, "Process Error: net_thread failed to pop pages, "
+                "bailing\n");
+      break;
+    }
+
+    // Check data correctness.
+    if (strict)
+      CrcCheckPage(&src);
+
+    // Do the network write.
+    if (!(result = result && SendPage(sock, &src)))
+      break;
+
+    // Update pattern reference to reflect new contents.
+    dst.pattern = src.pattern;
+
+    // Do the network read.
+    if (!(result = result && ReceivePage(sock, &dst)))
+      break;
+
+    // Ensure that the transfer ended up with correct data.
+    if (strict)
+      CrcCheckPage(&dst);
+
+    // Return all of our pages to the queue.
+    result = result && sat_->PutValid(&dst);
+    result = result && sat_->PutEmpty(&src);
+    if (!result) {
+      logprintf(0, "Process Error: net_thread failed to push pages, "
+                "bailing\n");
+      break;
+    }
+    loops++;
+  }
+
+  pages_copied_ = loops;
+  status_ = result;
+
+  // Clean up.
+  CloseSocket(sock);
+
+  logprintf(9, "Log: Completed %d: network thread status %d, "
+               "%d pages copied\n",
+            thread_num_, status_, pages_copied_);
+  return result;
+}
+
+// Spawn slave threads for incoming connections.
+bool NetworkListenThread::SpawnSlave(int newsock, int threadid) {
+  logprintf(12, "Log: Listen thread spawning slave\n");
+
+  // Spawn slave thread, to reflect network traffic back to sender.
+  ChildWorker *child_worker = new ChildWorker;
+  child_worker->thread.SetSock(newsock);
+  child_worker->thread.InitThread(threadid, sat_, os_, patternlist_,
+                                  &child_worker->status);
+  child_worker->status.Initialize();
+  child_worker->thread.SpawnThread();
+  child_workers_.push_back(child_worker);
+
+  return true;
+}
+
+// Reap slave threads.
+bool NetworkListenThread::ReapSlaves() {
+  bool result = true;
+  // Gather status and reap threads.
+  logprintf(12, "Log: Joining all outstanding threads\n");
+
+  for (size_t i = 0; i < child_workers_.size(); i++) {
+    NetworkSlaveThread& child_thread = child_workers_[i]->thread;
+    logprintf(12, "Log: Joining slave thread %d\n", i);
+    child_thread.JoinThread();
+    if (child_thread.GetStatus() != 1) {
+      logprintf(0, "Process Error: Slave Thread %d failed with status %d\n", i,
+                child_thread.GetStatus());
+      result = false;
+    }
+    errorcount_ += child_thread.GetErrorCount();
+    logprintf(9, "Log: Slave Thread %d found %lld miscompares\n", i,
+              child_thread.GetErrorCount());
+    pages_copied_ += child_thread.GetPageCount();
+  }
+
+  return result;
+}
+
+// Network listener IO work loop. Execute until marked done.
+// Return false on fatal software error.
+bool NetworkListenThread::Work() {
+  logprintf(9, "Log: Starting network listen thread %d\n",
+            thread_num_);
+
+  // Make a socket.
+  sock_ = 0;
+  if (!CreateSocket(&sock_)) {
+    status_ = false;
+    return false;
+  }
+  logprintf(9, "Log: Listen thread created sock\n");
+
+  // Allows incoming connections to be queued up by socket library.
+  int newsock = 0;
+  Listen();
+  logprintf(12, "Log: Listen thread waiting for incoming connections\n");
+
+  // Wait on incoming connections, and spawn worker threads for them.
+  int threadcount = 0;
+  while (IsReadyToRun()) {
+    // Poll for connections that we can accept().
+    if (Wait()) {
+      // Accept those connections.
+      logprintf(12, "Log: Listen thread found incoming connection\n");
+      if (GetConnection(&newsock)) {
+        SpawnSlave(newsock, threadcount);
+        threadcount++;
+      }
+    }
+  }
+
+  // Gather status and join spawned threads.
+  ReapSlaves();
+
+  // Delete the child workers.
+  for (ChildVector::iterator it = child_workers_.begin();
+       it != child_workers_.end(); ++it) {
+    (*it)->status.Destroy();
+    delete *it;
+  }
+  child_workers_.clear();
+
+  CloseSocket(sock_);
+
+  status_ = true;
+  logprintf(9,
+            "Log: Completed %d: network listen thread status %d, "
+            "%d pages copied\n",
+            thread_num_, status_, pages_copied_);
+  return true;
+}
+
+// Set network reflector socket struct.
+void NetworkSlaveThread::SetSock(int sock) {
+  sock_ = sock;
+}
+
+// Network reflector IO work loop. Execute until marked done.
+// Return false on fatal software error.
+bool NetworkSlaveThread::Work() {
+  logprintf(9, "Log: Starting network slave thread %d\n",
+            thread_num_);
+
+  // Verify that we have a socket.
+  int sock = sock_;
+  if (!sock) {
+    status_ = false;
+    return false;
+  }
+
+  // Loop until done.
+  int64 loops = 0;
+  // Init a local buffer for storing data.
+  void *local_page = NULL;
+  int result = posix_memalign(&local_page, 512, sat_->page_length());
+  if (result) {
+    logprintf(0, "Process Error: net slave posix_memalign "
+                 "returned %d (fail)\n",
+              result);
+    status_ = false;
+    return false;
+  }
+
+  struct page_entry page;
+  page.addr = local_page;
+
+  // This thread will continue to run as long as the thread on the other end of
+  // the socket is still sending and receiving data.
+  while (1) {
+    // Do the network read.
+    if (!ReceivePage(sock, &page))
+      break;
+
+    // Do the network write.
+    if (!SendPage(sock, &page))
+      break;
+
+    loops++;
+  }
+
+  pages_copied_ = loops;
+  // No results provided from this type of thread.
+  status_ = true;
+
+  // Clean up.
+  CloseSocket(sock);
+
+  logprintf(9,
+            "Log: Completed %d: network slave thread status %d, "
+            "%d pages copied\n",
+            thread_num_, status_, pages_copied_);
+  return true;
+}
+
+// Thread work loop. Execute until marked finished.
+bool ErrorPollThread::Work() {
+  logprintf(9, "Log: Starting system error poll thread %d\n", thread_num_);
+
+  // This calls a generic error polling function in the Os abstraction layer.
+  do {
+    errorcount_ += os_->ErrorPoll();
+    os_->ErrorWait();
+  } while (IsReadyToRun());
+
+  logprintf(9, "Log: Finished system error poll thread %d: %d errors\n",
+            thread_num_, errorcount_);
+  status_ = true;
+  return true;
+}
+
+// Worker thread to heat up CPU.
+// This thread does not evaluate pass/fail or software error.
+bool CpuStressThread::Work() {
+  logprintf(9, "Log: Starting CPU stress thread %d\n", thread_num_);
+
+  do {
+    // Run ludloff's platform/CPU-specific assembly workload.
+    os_->CpuStressWorkload();
+    YieldSelf();
+  } while (IsReadyToRun());
+
+  logprintf(9, "Log: Finished CPU stress thread %d:\n",
+            thread_num_);
+  status_ = true;
+  return true;
+}
+
+CpuCacheCoherencyThread::CpuCacheCoherencyThread(cc_cacheline_data *data,
+                                                 int cacheline_count,
+                                                 int thread_num,
+                                                 int inc_count) {
+  cc_cacheline_data_ = data;
+  cc_cacheline_count_ = cacheline_count;
+  cc_thread_num_ = thread_num;
+  cc_inc_count_ = inc_count;
+}
+
+// Worked thread to test the cache coherency of the CPUs
+// Return false on fatal sw error.
+bool CpuCacheCoherencyThread::Work() {
+  logprintf(9, "Log: Starting the Cache Coherency thread %d\n",
+            cc_thread_num_);
+  uint64 time_start, time_end;
+  struct timeval tv;
+
+  unsigned int seed = static_cast<unsigned int>(gettid());
+  gettimeofday(&tv, NULL);  // Get the timestamp before increments.
+  time_start = tv.tv_sec * 1000000ULL + tv.tv_usec;
+
+  uint64 total_inc = 0;  // Total increments done by the thread.
+  while (IsReadyToRun()) {
+    for (int i = 0; i < cc_inc_count_; i++) {
+      // Choose a datastructure in random and increment the appropriate
+      // member in that according to the offset (which is the same as the
+      // thread number.
+      int r = rand_r(&seed);
+      r = cc_cacheline_count_ * (r / (RAND_MAX + 1.0));
+      // Increment the member of the randomely selected structure.
+      (cc_cacheline_data_[r].num[cc_thread_num_])++;
+    }
+
+    total_inc += cc_inc_count_;
+
+    // Calculate if the local counter matches with the global value
+    // in all the cache line structures for this particular thread.
+    int cc_global_num = 0;
+    for (int cline_num = 0; cline_num < cc_cacheline_count_; cline_num++) {
+      cc_global_num += cc_cacheline_data_[cline_num].num[cc_thread_num_];
+      // Reset the cachline member's value for the next run.
+      cc_cacheline_data_[cline_num].num[cc_thread_num_] = 0;
+    }
+    if (sat_->error_injection())
+      cc_global_num = -1;
+
+    if (cc_global_num != cc_inc_count_) {
+      errorcount_++;
+      logprintf(0, "Hardware Error: global(%d) and local(%d) do not match\n",
+                cc_global_num, cc_inc_count_);
+    }
+  }
+  gettimeofday(&tv, NULL);  // Get the timestamp at the end.
+  time_end = tv.tv_sec * 1000000ULL + tv.tv_usec;
+
+  uint64 us_elapsed = time_end - time_start;
+  // inc_rate is the no. of increments per second.
+  double inc_rate = total_inc * 1e6 / us_elapsed;
+
+  logprintf(4, "Stats: CC Thread(%d): Time=%llu us,"
+            " Increments=%llu, Increments/sec = %.6lf\n",
+            cc_thread_num_, us_elapsed, total_inc, inc_rate);
+  logprintf(9, "Log: Finished CPU Cache Coherency thread %d:\n",
+            cc_thread_num_);
+  status_ = true;
+  return true;
+}
+
+DiskThread::DiskThread(DiskBlockTable *block_table) {
+  read_block_size_ = kSectorSize;   // default 1 sector (512 bytes)
+  write_block_size_ = kSectorSize;  // this assumes read and write block size
+                                    // are the same
+  segment_size_ = -1;               // use the entire disk as one segment
+  cache_size_ = 16 * 1024 * 1024;   // assume 16MiB cache by default
+  // Use a queue such that 3/2 times as much data as the cache can hold
+  // is written before it is read so that there is little chance the read
+  // data is in the cache.
+  queue_size_ = ((cache_size_ / write_block_size_) * 3) / 2;
+  blocks_per_segment_ = 32;
+
+  read_threshold_ = 100000;         // 100ms is a reasonable limit for
+  write_threshold_ = 100000;        // reading/writing a sector
+
+  read_timeout_ = 5000000;          // 5 seconds should be long enough for a
+  write_timeout_ = 5000000;         // timout for reading/writing
+
+  device_sectors_ = 0;
+  non_destructive_ = 0;
+
+  aio_ctx_ = 0;
+  block_table_ = block_table;
+  update_block_table_ = 1;
+
+  block_buffer_ = NULL;
+
+  blocks_written_ = 0;
+  blocks_read_ = 0;
+}
+
+DiskThread::~DiskThread() {
+  if (block_buffer_)
+    free(block_buffer_);
+}
+
+// Set filename for device file (in /dev).
+void DiskThread::SetDevice(const char *device_name) {
+  device_name_ = device_name;
+}
+
+// Set various parameters that control the behaviour of the test.
+// -1 is used as a sentinel value on each parameter (except non_destructive)
+// to indicate that the parameter not be set.
+bool DiskThread::SetParameters(int read_block_size,
+                               int write_block_size,
+                               int64 segment_size,
+                               int64 cache_size,
+                               int blocks_per_segment,
+                               int64 read_threshold,
+                               int64 write_threshold,
+                               int non_destructive) {
+  if (read_block_size != -1) {
+    // Blocks must be aligned to the disk's sector size.
+    if (read_block_size % kSectorSize != 0) {
+      logprintf(0, "Process Error: Block size must be a multiple of %d "
+                "(thread %d).\n", kSectorSize, thread_num_);
+      return false;
+    }
+
+    read_block_size_ = read_block_size;
+  }
+
+  if (write_block_size != -1) {
+    // Write blocks must be aligned to the disk's sector size and to the
+    // block size.
+    if (write_block_size % kSectorSize != 0) {
+      logprintf(0, "Process Error: Write block size must be a multiple "
+                "of %d (thread %d).\n", kSectorSize, thread_num_);
+      return false;
+    }
+    if (write_block_size % read_block_size_ != 0) {
+      logprintf(0, "Process Error: Write block size must be a multiple "
+                "of the read block size, which is %d (thread %d).\n",
+                read_block_size_, thread_num_);
+      return false;
+    }
+
+    write_block_size_ = write_block_size;
+
+  } else {
+    // Make sure write_block_size_ is still valid.
+    if (read_block_size_ > write_block_size_) {
+      logprintf(5, "Log: Assuming write block size equal to read block size, "
+                "which is %d (thread %d).\n", read_block_size_,
+                thread_num_);
+      write_block_size_ = read_block_size_;
+    } else {
+      if (write_block_size_ % read_block_size_ != 0) {
+        logprintf(0, "Process Error: Write block size (defined as %d) must "
+                  "be a multiple of the read block size, which is %d "
+                  "(thread %d).\n", write_block_size_, read_block_size_,
+                  thread_num_);
+        return false;
+      }
+    }
+  }
+
+  if (cache_size != -1) {
+    cache_size_ = cache_size;
+  }
+
+  if (blocks_per_segment != -1) {
+    if (blocks_per_segment <= 0) {
+      logprintf(0, "Process Error: Blocks per segment must be greater than "
+                   "zero.\n (thread %d)", thread_num_);
+      return false;
+    }
+
+    blocks_per_segment_ = blocks_per_segment;
+  }
+
+  if (read_threshold != -1) {
+    if (read_threshold <= 0) {
+      logprintf(0, "Process Error: Read threshold must be greater than "
+                   "zero (thread %d).\n", thread_num_);
+      return false;
+    }
+
+    read_threshold_ = read_threshold;
+  }
+
+  if (write_threshold != -1) {
+    if (write_threshold <= 0) {
+      logprintf(0, "Process Error: Write threshold must be greater than "
+                   "zero (thread %d).\n", thread_num_);
+      return false;
+    }
+
+    write_threshold_ = write_threshold;
+  }
+
+  if (segment_size != -1) {
+    // Segments must be aligned to the disk's sector size.
+    if (segment_size % kSectorSize != 0) {
+      logprintf(0, "Process Error: Segment size must be a multiple of %d"
+                " (thread %d).\n", kSectorSize, thread_num_);
+      return false;
+    }
+
+    segment_size_ = segment_size / kSectorSize;
+  }
+
+  non_destructive_ = non_destructive;
+
+  // Having a queue of 150% of blocks that will fit in the disk's cache
+  // should be enough to force out the oldest block before it is read and hence,
+  // making sure the data comes form the disk and not the cache.
+  queue_size_ = ((cache_size_ / write_block_size_) * 3) / 2;
+  // Updating DiskBlockTable parameters
+  if (update_block_table_) {
+    block_table_->SetParameters(kSectorSize, write_block_size_,
+                                device_sectors_, segment_size_,
+                                device_name_);
+  }
+  return true;
+}
+
+// Open a device, return false on failure.
+bool DiskThread::OpenDevice(int *pfile) {
+  int fd = open(device_name_.c_str(),
+                O_RDWR | O_SYNC | O_DIRECT | O_LARGEFILE,
+                0);
+  if (fd < 0) {
+    logprintf(0, "Process Error: Failed to open device %s (thread %d)!!\n",
+              device_name_.c_str(), thread_num_);
+    return false;
+  }
+  *pfile = fd;
+
+  return GetDiskSize(fd);
+}
+
+// Retrieves the size (in bytes) of the disk/file.
+// Return false on failure.
+bool DiskThread::GetDiskSize(int fd) {
+  struct stat device_stat;
+  if (fstat(fd, &device_stat) == -1) {
+    logprintf(0, "Process Error: Unable to fstat disk %s (thread %d).\n",
+              device_name_.c_str(), thread_num_);
+    return false;
+  }
+
+  // For a block device, an ioctl is needed to get the size since the size
+  // of the device file (i.e. /dev/sdb) is 0.
+  if (S_ISBLK(device_stat.st_mode)) {
+    uint64 block_size = 0;
+
+    if (ioctl(fd, BLKGETSIZE64, &block_size) == -1) {
+      logprintf(0, "Process Error: Unable to ioctl disk %s (thread %d).\n",
+                device_name_.c_str(), thread_num_);
+      return false;
+    }
+
+    // Zero size indicates nonworking device..
+    if (block_size == 0) {
+      os_->ErrorReport(device_name_.c_str(), "device-size-zero", 1);
+      ++errorcount_;
+      status_ = true;  // Avoid a procedural error.
+      return false;
+    }
+
+    device_sectors_ = block_size / kSectorSize;
+
+  } else if (S_ISREG(device_stat.st_mode)) {
+    device_sectors_ = device_stat.st_size / kSectorSize;
+
+  } else {
+    logprintf(0, "Process Error: %s is not a regular file or block "
+              "device (thread %d).\n", device_name_.c_str(),
+              thread_num_);
+    return false;
+  }
+
+  logprintf(12, "Log: Device sectors: %lld on disk %s (thread %d).\n",
+            device_sectors_, device_name_.c_str(), thread_num_);
+
+  if (update_block_table_) {
+    block_table_->SetParameters(kSectorSize, write_block_size_,
+                                device_sectors_, segment_size_,
+                                device_name_);
+  }
+
+  return true;
+}
+
+bool DiskThread::CloseDevice(int fd) {
+  close(fd);
+  return true;
+}
+
+// Return the time in microseconds.
+int64 DiskThread::GetTime() {
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+  return tv.tv_sec * 1000000 + tv.tv_usec;
+}
+
+// Do randomized reads and (possibly) writes on a device.
+// Return false on fatal SW error, true on SW success,
+// regardless of whether HW failed.
+bool DiskThread::DoWork(int fd) {
+  int64 block_num = 0;
+  int64 num_segments;
+
+  if (segment_size_ == -1) {
+    num_segments = 1;
+  } else {
+    num_segments = device_sectors_ / segment_size_;
+    if (device_sectors_ % segment_size_ != 0)
+      num_segments++;
+  }
+
+  // Disk size should be at least 3x cache size.  See comment later for
+  // details.
+  sat_assert(device_sectors_ * kSectorSize > 3 * cache_size_);
+
+  // This disk test works by writing blocks with a certain pattern to
+  // disk, then reading them back and verifying it against the pattern
+  // at a later time.  A failure happens when either the block cannot
+  // be written/read or when the read block is different than what was
+  // written.  If a block takes too long to write/read, then a warning
+  // is given instead of an error since taking too long is not
+  // necessarily an error.
+  //
+  // To prevent the read blocks from coming from the disk cache,
+  // enough blocks are written before read such that a block would
+  // be ejected from the disk cache by the time it is read.
+  //
+  // TODO(amistry): Implement some sort of read/write throttling.  The
+  //                flood of asynchronous I/O requests when a drive is
+  //                unplugged is causing the application and kernel to
+  //                become unresponsive.
+
+  while (IsReadyToRun()) {
+    // Write blocks to disk.
+    logprintf(16, "Log: Write phase %sfor disk %s (thread %d).\n",
+              non_destructive_ ? "(disabled) " : "",
+              device_name_.c_str(), thread_num_);
+    while (IsReadyToRunNoPause() &&
+           in_flight_sectors_.size() <
+               static_cast<size_t>(queue_size_ + 1)) {
+      // Confine testing to a particular segment of the disk.
+      int64 segment = (block_num / blocks_per_segment_) % num_segments;
+      if (!non_destructive_ &&
+          (block_num % blocks_per_segment_ == 0)) {
+        logprintf(20, "Log: Starting to write segment %lld out of "
+                  "%lld on disk %s (thread %d).\n",
+                  segment, num_segments, device_name_.c_str(),
+                  thread_num_);
+      }
+      block_num++;
+
+      BlockData *block = block_table_->GetUnusedBlock(segment);
+
+      // If an unused sequence of sectors could not be found, skip to the
+      // next block to process.  Soon, a new segment will come and new
+      // sectors will be able to be allocated.  This effectively puts a
+      // minumim on the disk size at 3x the stated cache size, or 48MiB
+      // if a cache size is not given (since the cache is set as 16MiB
+      // by default).  Given that todays caches are at the low MiB range
+      // and drive sizes at the mid GB, this shouldn't pose a problem.
+      // The 3x minimum comes from the following:
+      //   1. In order to allocate 'y' blocks from a segment, the
+      //      segment must contain at least 2y blocks or else an
+      //      allocation may not succeed.
+      //   2. Assume the entire disk is one segment.
+      //   3. A full write phase consists of writing blocks corresponding to
+      //      3/2 cache size.
+      //   4. Therefore, the one segment must have 2 * 3/2 * cache
+      //      size worth of blocks = 3 * cache size worth of blocks
+      //      to complete.
+      // In non-destructive mode, don't write anything to disk.
+      if (!non_destructive_) {
+        if (!WriteBlockToDisk(fd, block)) {
+          block_table_->RemoveBlock(block);
+          return true;
+        }
+        blocks_written_++;
+      }
+
+      // Block is either initialized by writing, or in nondestructive case,
+      // initialized by being added into the datastructure for later reading.
+      block->SetBlockAsInitialized();
+
+      in_flight_sectors_.push(block);
+    }
+
+    // Verify blocks on disk.
+    logprintf(20, "Log: Read phase for disk %s (thread %d).\n",
+              device_name_.c_str(), thread_num_);
+    while (IsReadyToRunNoPause() && !in_flight_sectors_.empty()) {
+      BlockData *block = in_flight_sectors_.front();
+      in_flight_sectors_.pop();
+      if (!ValidateBlockOnDisk(fd, block))
+        return true;
+      block_table_->RemoveBlock(block);
+      blocks_read_++;
+    }
+  }
+
+  pages_copied_ = blocks_written_ + blocks_read_;
+  return true;
+}
+
+// Do an asynchronous disk I/O operation.
+// Return false if the IO is not set up.
+bool DiskThread::AsyncDiskIO(IoOp op, int fd, void *buf, int64 size,
+                            int64 offset, int64 timeout) {
+  // Use the Linux native asynchronous I/O interface for reading/writing.
+  // A read/write consists of three basic steps:
+  //    1. create an io context.
+  //    2. prepare and submit an io request to the context
+  //    3. wait for an event on the context.
+
+  struct {
+    const int opcode;
+    const char *op_str;
+    const char *error_str;
+  } operations[2] = {
+    { IO_CMD_PREAD, "read", "disk-read-error" },
+    { IO_CMD_PWRITE, "write", "disk-write-error" }
+  };
+
+  struct iocb cb;
+  memset(&cb, 0, sizeof(cb));
+
+  cb.aio_fildes = fd;
+  cb.aio_lio_opcode = operations[op].opcode;
+  cb.u.c.buf = buf;
+  cb.u.c.nbytes = size;
+  cb.u.c.offset = offset;
+
+  struct iocb *cbs[] = { &cb };
+  if (io_submit(aio_ctx_, 1, cbs) != 1) {
+    int error = errno;
+    char buf[256];
+    sat_strerror(error, buf, sizeof(buf));
+    logprintf(0, "Process Error: Unable to submit async %s "
+                 "on disk %s (thread %d). Error %d, %s\n",
+              operations[op].op_str, device_name_.c_str(),
+              thread_num_, error, buf);
+    return false;
+  }
+
+  struct io_event event;
+  memset(&event, 0, sizeof(event));
+  struct timespec tv;
+  tv.tv_sec = timeout / 1000000;
+  tv.tv_nsec = (timeout % 1000000) * 1000;
+  if (io_getevents(aio_ctx_, 1, 1, &event, &tv) != 1) {
+    // A ctrl-c from the keyboard will cause io_getevents to fail with an
+    // EINTR error code.  This is not an error and so don't treat it as such,
+    // but still log it.
+    int error = errno;
+    if (error == EINTR) {
+      logprintf(5, "Log: %s interrupted on disk %s (thread %d).\n",
+                operations[op].op_str, device_name_.c_str(),
+                thread_num_);
+    } else {
+      os_->ErrorReport(device_name_.c_str(), operations[op].error_str, 1);
+      errorcount_ += 1;
+      logprintf(0, "Hardware Error: Timeout doing async %s to sectors "
+                   "starting at %lld on disk %s (thread %d).\n",
+                operations[op].op_str, offset / kSectorSize,
+                device_name_.c_str(), thread_num_);
+    }
+
+    // Don't bother checking return codes since io_cancel seems to always fail.
+    // Since io_cancel is always failing, destroying and recreating an I/O
+    // context is a workaround for canceling an in-progress I/O operation.
+    // TODO(amistry): Find out why io_cancel isn't working and make it work.
+    io_cancel(aio_ctx_, &cb, &event);
+    io_destroy(aio_ctx_);
+    aio_ctx_ = 0;
+    if (io_setup(5, &aio_ctx_)) {
+      int error = errno;
+      char buf[256];
+      sat_strerror(error, buf, sizeof(buf));
+      logprintf(0, "Process Error: Unable to create aio context on disk %s"
+                " (thread %d) Error %d, %s\n",
+                device_name_.c_str(), thread_num_, error, buf);
+    }
+
+    return false;
+  }
+
+  // event.res contains the number of bytes written/read or
+  // error if < 0, I think.
+  if (event.res != static_cast<uint64>(size)) {
+    errorcount_++;
+    os_->ErrorReport(device_name_.c_str(), operations[op].error_str, 1);
+
+    if (event.res < 0) {
+      switch (event.res) {
+        case -EIO:
+          logprintf(0, "Hardware Error: Low-level I/O error while doing %s to "
+                       "sectors starting at %lld on disk %s (thread %d).\n",
+                    operations[op].op_str, offset / kSectorSize,
+                    device_name_.c_str(), thread_num_);
+          break;
+        default:
+          logprintf(0, "Hardware Error: Unknown error while doing %s to "
+                       "sectors starting at %lld on disk %s (thread %d).\n",
+                    operations[op].op_str, offset / kSectorSize,
+                    device_name_.c_str(), thread_num_);
+      }
+    } else {
+      logprintf(0, "Hardware Error: Unable to %s to sectors starting at "
+                   "%lld on disk %s (thread %d).\n",
+                operations[op].op_str, offset / kSectorSize,
+                device_name_.c_str(), thread_num_);
+    }
+    return false;
+  }
+
+  return true;
+}
+
+// Write a block to disk.
+// Return false if the block is not written.
+bool DiskThread::WriteBlockToDisk(int fd, BlockData *block) {
+  memset(block_buffer_, 0, block->GetSize());
+
+  // Fill block buffer with a pattern
+  struct page_entry pe;
+  if (!sat_->GetValid(&pe)) {
+    // Even though a valid page could not be obatined, it is not an error
+    // since we can always fill in a pattern directly, albeit slower.
+    unsigned int *memblock = static_cast<unsigned int *>(block_buffer_);
+    block->SetPattern(patternlist_->GetRandomPattern());
+
+    logprintf(11, "Log: Warning, using pattern fill fallback in "
+                  "DiskThread::WriteBlockToDisk on disk %s (thread %d).\n",
+              device_name_.c_str(), thread_num_);
+
+    for (int i = 0; i < block->GetSize()/wordsize_; i++) {
+      memblock[i] = block->GetPattern()->pattern(i);
+    }
+  } else {
+    memcpy(block_buffer_, pe.addr, block->GetSize());
+    block->SetPattern(pe.pattern);
+    sat_->PutValid(&pe);
+  }
+
+  logprintf(12, "Log: Writing %lld sectors starting at %lld on disk %s"
+            " (thread %d).\n",
+            block->GetSize()/kSectorSize, block->GetAddress(),
+            device_name_.c_str(), thread_num_);
+
+  int64 start_time = GetTime();
+
+  if (!AsyncDiskIO(ASYNC_IO_WRITE, fd, block_buffer_, block->GetSize(),
+                   block->GetAddress() * kSectorSize, write_timeout_)) {
+    return false;
+  }
+
+  int64 end_time = GetTime();
+  logprintf(12, "Log: Writing time: %lld us (thread %d).\n",
+            end_time - start_time, thread_num_);
+  if (end_time - start_time > write_threshold_) {
+    logprintf(5, "Log: Write took %lld us which is longer than threshold "
+                 "%lld us on disk %s (thread %d).\n",
+              end_time - start_time, write_threshold_, device_name_.c_str(),
+              thread_num_);
+  }
+
+  return true;
+}
+
+// Verify a block on disk.
+// Return true if the block was read, also increment errorcount
+// if the block had data errors or performance problems.
+bool DiskThread::ValidateBlockOnDisk(int fd, BlockData *block) {
+  int64 blocks = block->GetSize() / read_block_size_;
+  int64 bytes_read = 0;
+  int64 current_blocks;
+  int64 current_bytes;
+  uint64 address = block->GetAddress();
+
+  logprintf(20, "Log: Reading sectors starting at %lld on disk %s "
+            "(thread %d).\n",
+            address, device_name_.c_str(), thread_num_);
+
+  // Read block from disk and time the read.  If it takes longer than the
+  // threshold, complain.
+  if (lseek64(fd, address * kSectorSize, SEEK_SET) == -1) {
+    logprintf(0, "Process Error: Unable to seek to sector %lld in "
+              "DiskThread::ValidateSectorsOnDisk on disk %s "
+              "(thread %d).\n", address, device_name_.c_str(), thread_num_);
+    return false;
+  }
+  int64 start_time = GetTime();
+
+  // Split a large write-sized block into small read-sized blocks and
+  // read them in groups of randomly-sized multiples of read block size.
+  // This assures all data written on disk by this particular block
+  // will be tested using a random reading pattern.
+  while (blocks != 0) {
+    // Test all read blocks in a written block.
+    current_blocks = (random() % blocks) + 1;
+    current_bytes = current_blocks * read_block_size_;
+
+    memset(block_buffer_, 0, current_bytes);
+
+    logprintf(20, "Log: Reading %lld sectors starting at sector %lld on "
+              "disk %s (thread %d)\n",
+              current_bytes / kSectorSize,
+              (address * kSectorSize + bytes_read) / kSectorSize,
+              device_name_.c_str(), thread_num_);
+
+    if (!AsyncDiskIO(ASYNC_IO_READ, fd, block_buffer_, current_bytes,
+                     address * kSectorSize + bytes_read,
+                     write_timeout_)) {
+      return false;
+    }
+
+    int64 end_time = GetTime();
+    logprintf(20, "Log: Reading time: %lld us (thread %d).\n",
+              end_time - start_time, thread_num_);
+    if (end_time - start_time > read_threshold_) {
+      logprintf(5, "Log: Read took %lld us which is longer than threshold "
+                "%lld us on disk %s (thread %d).\n",
+                end_time - start_time, read_threshold_,
+                device_name_.c_str(), thread_num_);
+    }
+
+    // In non-destructive mode, don't compare the block to the pattern since
+    // the block was never written to disk in the first place.
+    if (!non_destructive_) {
+      if (CheckRegion(block_buffer_, block->GetPattern(), current_bytes,
+                      0, bytes_read)) {
+        os_->ErrorReport(device_name_.c_str(), "disk-pattern-error", 1);
+        errorcount_ += 1;
+        logprintf(0, "Hardware Error: Pattern mismatch in block starting at "
+                  "sector %lld in DiskThread::ValidateSectorsOnDisk on "
+                  "disk %s (thread %d).\n",
+                  address, device_name_.c_str(), thread_num_);
+      }
+    }
+
+    bytes_read += current_blocks * read_block_size_;
+    blocks -= current_blocks;
+  }
+
+  return true;
+}
+
+// Direct device access thread.
+// Return false on software error.
+bool DiskThread::Work() {
+  int fd;
+
+  logprintf(9, "Log: Starting disk thread %d, disk %s\n",
+            thread_num_, device_name_.c_str());
+
+  srandom(time(NULL));
+
+  if (!OpenDevice(&fd)) {
+    status_ = false;
+    return false;
+  }
+
+  // Allocate a block buffer aligned to 512 bytes since the kernel requires it
+  // when using direst IO.
+  int memalign_result = posix_memalign(&block_buffer_, kBufferAlignment,
+                              sat_->page_length());
+  if (memalign_result) {
+    CloseDevice(fd);
+    logprintf(0, "Process Error: Unable to allocate memory for buffers "
+                 "for disk %s (thread %d) posix memalign returned %d.\n",
+              device_name_.c_str(), thread_num_, memalign_result);
+    status_ = false;
+    return false;
+  }
+
+  if (io_setup(5, &aio_ctx_)) {
+    CloseDevice(fd);
+    logprintf(0, "Process Error: Unable to create aio context for disk %s"
+              " (thread %d).\n",
+              device_name_.c_str(), thread_num_);
+    status_ = false;
+    return false;
+  }
+
+  bool result = DoWork(fd);
+
+  status_ = result;
+
+  io_destroy(aio_ctx_);
+  CloseDevice(fd);
+
+  logprintf(9, "Log: Completed %d (disk %s): disk thread status %d, "
+               "%d pages copied\n",
+            thread_num_, device_name_.c_str(), status_, pages_copied_);
+  return result;
+}
+
+RandomDiskThread::RandomDiskThread(DiskBlockTable *block_table)
+    : DiskThread(block_table) {
+  update_block_table_ = 0;
+}
+
+RandomDiskThread::~RandomDiskThread() {
+}
+
+// Workload for random disk thread.
+bool RandomDiskThread::DoWork(int fd) {
+  logprintf(11, "Log: Random phase for disk %s (thread %d).\n",
+            device_name_.c_str(), thread_num_);
+  while (IsReadyToRun()) {
+    BlockData *block = block_table_->GetRandomBlock();
+    if (block == NULL) {
+      logprintf(12, "Log: No block available for device %s (thread %d).\n",
+                device_name_.c_str(), thread_num_);
+    } else {
+      ValidateBlockOnDisk(fd, block);
+      block_table_->ReleaseBlock(block);
+      blocks_read_++;
+    }
+  }
+  pages_copied_ = blocks_read_;
+  return true;
+}
+
+MemoryRegionThread::MemoryRegionThread() {
+  error_injection_ = false;
+  pages_ = NULL;
+}
+
+MemoryRegionThread::~MemoryRegionThread() {
+  if (pages_ != NULL)
+    delete pages_;
+}
+
+// Set a region of memory or MMIO to be tested.
+// Return false if region could not be mapped.
+bool MemoryRegionThread::SetRegion(void *region, int64 size) {
+  int plength = sat_->page_length();
+  int npages = size / plength;
+  if (size % plength) {
+    logprintf(0, "Process Error: region size is not a multiple of SAT "
+              "page length\n");
+    return false;
+  } else {
+    if (pages_ != NULL)
+      delete pages_;
+    pages_ = new PageEntryQueue(npages);
+    char *base_addr = reinterpret_cast<char*>(region);
+    region_ = base_addr;
+    for (int i = 0; i < npages; i++) {
+      struct page_entry pe;
+      init_pe(&pe);
+      pe.addr = reinterpret_cast<void*>(base_addr + i * plength);
+      pe.offset = i * plength;
+
+      pages_->Push(&pe);
+    }
+    return true;
+  }
+}
+
+// More detailed error printout for hardware errors in memory or MMIO
+// regions.
+void MemoryRegionThread::ProcessError(struct ErrorRecord *error,
+                                      int priority,
+                                      const char *message) {
+  uint32 buffer_offset;
+  if (phase_ == kPhaseCopy) {
+    // If the error occurred on the Copy Phase, it means that
+    // the source data (i.e., the main memory) is wrong. so
+    // just pass it to the original ProcessError to call a
+    // bad-dimm error
+    WorkerThread::ProcessError(error, priority, message);
+  } else if (phase_ == kPhaseCheck) {
+    // A error on the Check Phase means that the memory region tested
+    // has an error. Gathering more information and then reporting
+    // the error.
+    // Determine if this is a write or read error.
+    os_->Flush(error->vaddr);
+    error->reread = *(error->vaddr);
+    char *good = reinterpret_cast<char*>(&(error->expected));
+    char *bad = reinterpret_cast<char*>(&(error->actual));
+    sat_assert(error->expected != error->actual);
+    unsigned int offset = 0;
+    for (offset = 0; offset < (sizeof(error->expected) - 1); offset++) {
+      if (good[offset] != bad[offset])
+        break;
+    }
+
+    error->vbyteaddr = reinterpret_cast<char*>(error->vaddr) + offset;
+
+    buffer_offset = error->vbyteaddr - region_;
+
+    // Find physical address if possible.
+    error->paddr = os_->VirtualToPhysical(error->vbyteaddr);
+    logprintf(priority,
+              "%s: miscompare on %s, CRC check at %p(0x%llx), "
+              "offset %llx: read:0x%016llx, reread:0x%016llx "
+              "expected:0x%016llx\n",
+              message,
+              identifier_.c_str(),
+              error->vaddr,
+              error->paddr,
+              buffer_offset,
+              error->actual,
+              error->reread,
+              error->expected);
+  } else {
+    logprintf(0, "Process Error: memory region thread raised an "
+              "unexpected error.");
+  }
+}
+
+// Workload for testion memory or MMIO regions.
+// Return false on software error.
+bool MemoryRegionThread::Work() {
+  struct page_entry source_pe;
+  struct page_entry memregion_pe;
+  bool result = true;
+  int64 loops = 0;
+  const uint64 error_constant = 0x00ba00000000ba00LL;
+
+  // For error injection.
+  int64 *addr = 0x0;
+  int offset = 0;
+  int64 data = 0;
+
+  logprintf(9, "Log: Starting Memory Region thread %d\n", thread_num_);
+
+  while (IsReadyToRun()) {
+    // Getting pages from SAT and queue.
+    phase_ = kPhaseNoPhase;
+    result = result && sat_->GetValid(&source_pe);
+    if (!result) {
+      logprintf(0, "Process Error: memory region thread failed to pop "
+                "pages from SAT, bailing\n");
+      break;
+    }
+
+    result = result && pages_->PopRandom(&memregion_pe);
+    if (!result) {
+      logprintf(0, "Process Error: memory region thread failed to pop "
+                "pages from queue, bailing\n");
+      break;
+    }
+
+    // Error injection for CRC copy.
+    if ((sat_->error_injection() || error_injection_) && loops == 1) {
+      addr = reinterpret_cast<int64*>(source_pe.addr);
+      offset = random() % (sat_->page_length() / wordsize_);
+      data = addr[offset];
+      addr[offset] = error_constant;
+    }
+
+    // Copying SAT page into memory region.
+    phase_ = kPhaseCopy;
+    CrcCopyPage(&memregion_pe, &source_pe);
+    memregion_pe.pattern = source_pe.pattern;
+
+    // Error injection for CRC Check.
+    if ((sat_->error_injection() || error_injection_) && loops == 2) {
+      addr = reinterpret_cast<int64*>(memregion_pe.addr);
+      offset = random() % (sat_->page_length() / wordsize_);
+      data = addr[offset];
+      addr[offset] = error_constant;
+    }
+
+    // Checking page content in memory region.
+    phase_ = kPhaseCheck;
+    CrcCheckPage(&memregion_pe);
+
+    phase_ = kPhaseNoPhase;
+    // Storing pages on their proper queues.
+    result = result && sat_->PutValid(&source_pe);
+    if (!result) {
+      logprintf(0, "Process Error: memory region thread failed to push "
+                "pages into SAT, bailing\n");
+      break;
+    }
+    result = result && pages_->Push(&memregion_pe);
+    if (!result) {
+      logprintf(0, "Process Error: memory region thread failed to push "
+                "pages into queue, bailing\n");
+      break;
+    }
+
+    if ((sat_->error_injection() || error_injection_) &&
+        loops >= 1 && loops <= 2) {
+      addr[offset] = data;
+    }
+
+    loops++;
+    YieldSelf();
+  }
+
+  pages_copied_ = loops;
+  status_ = result;
+  logprintf(9, "Log: Completed %d: Memory Region thread. Status %d, %d "
+            "pages checked\n", thread_num_, status_, pages_copied_);
+  return result;
+}
diff --git a/src/worker.h b/src/worker.h
new file mode 100644
index 0000000..7aae5f2
--- /dev/null
+++ b/src/worker.h
@@ -0,0 +1,804 @@
+// Copyright 2006 Google Inc. All Rights Reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//      http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// worker.h : worker thread interface
+
+// This file contains the Worker Thread class interface
+// for the SAT test. Worker Threads implement a repetative
+// task used to test or stress the system.
+
+#ifndef STRESSAPPTEST_WORKER_H_
+#define STRESSAPPTEST_WORKER_H_
+
+#include <pthread.h>
+
+#include <sys/time.h>
+#include <sys/types.h>
+
+#include <libaio.h>
+
+#include <queue>
+#include <set>
+#include <string>
+#include <vector>
+
+// This file must work with autoconf on its public version,
+// so these includes are correct.
+#include "disk_blocks.h"
+#include "queue.h"
+#include "sattypes.h"
+
+
+// Global Datastruture shared by the Cache Coherency Worker Threads.
+struct cc_cacheline_data {
+  int *num;
+};
+
+// Typical usage:
+// (Other workflows may be possible, see function comments for details.)
+// - Control thread creates object.
+// - Control thread calls AddWorkers(1) for each worker thread.
+// - Control thread calls Initialize().
+// - Control thread launches worker threads.
+// - Every worker thread frequently calls ContinueRunning().
+// - Control thread periodically calls PauseWorkers(), effectively sleeps, and
+//     then calls ResumeWorkers().
+// - Some worker threads may exit early, before StopWorkers() is called.  They
+//     call RemoveSelf() after their last call to ContinueRunning().
+// - Control thread eventually calls StopWorkers().
+// - Worker threads exit.
+// - Control thread joins worker threads.
+// - Control thread calls Destroy().
+// - Control thread destroys object.
+//
+// Threadsafety:
+// - ContinueRunning() may be called concurrently by different workers, but not
+//     by a single worker.
+// - No other methods may ever be called concurrently, with themselves or
+//     eachother.
+// - This object may be used by multiple threads only between Initialize() and
+//     Destroy().
+//
+// TODO(matthewb): Move this class and its unittest to their own files.
+class WorkerStatus {
+ public:
+  //--------------------------------
+  // Methods for the control thread.
+  //--------------------------------
+
+  WorkerStatus() : num_workers_(0), status_(RUN) {}
+
+  // Called by the control thread to increase the worker count.  Must be called
+  // before Initialize().  The worker count is 0 upon object initialization.
+  void AddWorkers(int num_new_workers) {
+    // No need to lock num_workers_mutex_ because this is before Initialize().
+    num_workers_ += num_new_workers;
+  }
+
+  // Called by the control thread.  May not be called multiple times.  If
+  // called, Destroy() must be called before destruction.
+  void Initialize();
+
+  // Called by the control thread after joining all worker threads.  Must be
+  // called iff Initialize() was called.  No methods may be called after calling
+  // this.
+  void Destroy();
+
+  // Called by the control thread to tell the workers to pause.  Does not return
+  // until all workers have called ContinueRunning() or RemoveSelf().  May only
+  // be called between Initialize() and Stop().  Must not be called multiple
+  // times without ResumeWorkers() having been called inbetween.
+  void PauseWorkers();
+
+  // Called by the control thread to tell the workers to resume from a pause.
+  // May only be called between Initialize() and Stop().  May only be called
+  // directly after PauseWorkers().
+  void ResumeWorkers();
+
+  // Called by the control thread to tell the workers to stop.  May only be
+  // called between Initialize() and Destroy().  May only be called once.
+  void StopWorkers();
+
+  //--------------------------------
+  // Methods for the worker threads.
+  //--------------------------------
+
+  // Called by worker threads to decrease the worker count by one.  May only be
+  // called between Initialize() and Destroy().  May wait for ResumeWorkers()
+  // when called after PauseWorkers().
+  void RemoveSelf();
+
+  // Called by worker threads between Initialize() and Destroy().  May be called
+  // any number of times.  Return value is whether or not the worker should
+  // continue running.  When called after PauseWorkers(), does not return until
+  // ResumeWorkers() or StopWorkers() has been called.  Number of distinct
+  // calling threads must match the worker count (see AddWorkers() and
+  // RemoveSelf()).
+  bool ContinueRunning();
+
+  // TODO(matthewb): Is this functionality really necessary?  Remove it if not.
+  //
+  // This is a hack!  It's like ContinueRunning(), except it won't pause.  If
+  // any worker threads use this exclusively in place of ContinueRunning() then
+  // PauseWorkers() should never be used!
+  bool ContinueRunningNoPause();
+
+ private:
+  enum Status { RUN, PAUSE, STOP };
+
+  void WaitOnPauseBarrier() {
+    int error = pthread_barrier_wait(&pause_barrier_);
+    if (error != PTHREAD_BARRIER_SERIAL_THREAD)
+      sat_assert(error == 0);
+  }
+
+  void AcquireNumWorkersLock() {
+    sat_assert(0 == pthread_mutex_lock(&num_workers_mutex_));
+  }
+
+  void ReleaseNumWorkersLock() {
+    sat_assert(0 == pthread_mutex_unlock(&num_workers_mutex_));
+  }
+
+  void AcquireStatusReadLock() {
+    sat_assert(0 == pthread_rwlock_rdlock(&status_rwlock_));
+  }
+
+  void AcquireStatusWriteLock() {
+    sat_assert(0 == pthread_rwlock_wrlock(&status_rwlock_));
+  }
+
+  void ReleaseStatusLock() {
+    sat_assert(0 == pthread_rwlock_unlock(&status_rwlock_));
+  }
+
+  Status GetStatus() {
+    AcquireStatusReadLock();
+    Status status = status_;
+    ReleaseStatusLock();
+    return status;
+  }
+
+  // Returns the previous status.
+  Status SetStatus(Status status) {
+    AcquireStatusWriteLock();
+    Status prev_status = status_;
+    status_ = status;
+    ReleaseStatusLock();
+    return prev_status;
+  }
+
+  pthread_mutex_t num_workers_mutex_;
+  int num_workers_;
+
+  pthread_rwlock_t status_rwlock_;
+  Status status_;
+
+  // Guaranteed to not be in use when (status_ != PAUSE).
+  pthread_barrier_t pause_barrier_;
+
+  DISALLOW_COPY_AND_ASSIGN(WorkerStatus);
+};
+
+
+// This is a base class for worker threads.
+// Each thread repeats a specific
+// task on various blocks of memory.
+class WorkerThread {
+ public:
+  // Enum to mark a thread as low/med/high priority.
+  enum Priority {
+    Low,
+    Normal,
+    High,
+  };
+  WorkerThread();
+  virtual ~WorkerThread();
+
+  // Initialize values and thread ID number.
+  virtual void InitThread(int thread_num_init,
+                          class Sat *sat_init,
+                          class OsLayer *os_init,
+                          class PatternList *patternlist_init,
+                          WorkerStatus *worker_status);
+
+  // This function is DEPRECATED, it does nothing.
+  void SetPriority(Priority priority) { priority_ = priority; }
+  // Spawn the worker thread, by running Work().
+  int SpawnThread();
+  // Only for ThreadSpawnerGeneric().
+  void StartRoutine();
+  bool InitPriority();
+
+  // Wait for the thread to complete its cleanup.
+  virtual bool JoinThread();
+  // Kill worker thread with SIGINT.
+  virtual bool KillThread();
+
+  // This is the task function that the thread executes.
+  // This is implemented per subclass.
+  virtual bool Work();
+
+  // Starts per-WorkerThread timer.
+  void StartThreadTimer() {gettimeofday(&start_time_, NULL);}
+  // Reads current timer value and returns run duration without recording it.
+  int64 ReadThreadTimer() {
+    struct timeval end_time_;
+    gettimeofday(&end_time_, NULL);
+    return (end_time_.tv_sec - start_time_.tv_sec)*1000000 +
+      (end_time_.tv_usec - start_time_.tv_usec);
+  }
+  // Stops per-WorkerThread timer and records thread run duration.
+  // Start/Stop ThreadTimer repetitively has cumulative effect, ie the timer
+  // is effectively paused and restarted, so runduration_usec accumulates on.
+  void StopThreadTimer() {
+    runduration_usec_ += ReadThreadTimer();
+  }
+
+  // Acccess member variables.
+  bool GetStatus() {return status_;}
+  int64 GetErrorCount() {return errorcount_;}
+  int64 GetPageCount() {return pages_copied_;}
+  int64 GetRunDurationUSec() {return runduration_usec_;}
+
+  // Returns bandwidth defined as pages_copied / thread_run_durations.
+  virtual float GetCopiedData();
+  // Calculate worker thread specific copied data.
+  virtual float GetMemoryCopiedData() {return 0;}
+  virtual float GetDeviceCopiedData() {return 0;}
+  // Calculate worker thread specific bandwidth.
+  virtual float GetMemoryBandwidth()
+    {return GetMemoryCopiedData() / (
+        runduration_usec_ * 1.0 / 1000000);}
+  virtual float GetDeviceBandwidth()
+    {return GetDeviceCopiedData() / (
+        runduration_usec_ * 1.0 / 1000000);}
+
+  void set_cpu_mask(cpu_set_t *mask) {
+    memcpy(&cpu_mask_, mask, sizeof(*mask));
+  }
+
+  void set_cpu_mask_to_cpu(int cpu_num) {
+    cpuset_set_ab(&cpu_mask_, cpu_num, cpu_num + 1);
+  }
+
+  void set_tag(int32 tag) {tag_ = tag;}
+
+  // Returns CPU mask, where each bit represents a logical cpu.
+  bool AvailableCpus(cpu_set_t *cpuset);
+  // Returns CPU mask of CPUs this thread is bound to,
+  bool CurrentCpus(cpu_set_t *cpuset);
+  // Returns Current Cpus mask as string.
+  string CurrentCpusFormat() {
+    cpu_set_t current_cpus;
+    CurrentCpus(&current_cpus);
+    return cpuset_format(&current_cpus);
+  }
+
+  int ThreadID() {return thread_num_;}
+
+  // Bind worker thread to specified CPU(s)
+  bool BindToCpus(const cpu_set_t *cpuset);
+
+ protected:
+  // This function dictates whether the main work loop
+  // continues, waits, or terminates.
+  // All work loops should be of the form:
+  //   do {
+  //     // work.
+  //   } while (IsReadyToRun());
+  virtual bool IsReadyToRun() { return worker_status_->ContinueRunning(); }
+  // TODO(matthewb): Is this function really necessary? Remove it if not.
+  //
+  // Like IsReadyToRun(), except it won't pause.
+  virtual bool IsReadyToRunNoPause() {
+    return worker_status_->ContinueRunningNoPause();
+  }
+
+  // These are functions used by the various work loops.
+  // Pretty print and log a data miscompare.
+  virtual void ProcessError(struct ErrorRecord *er,
+                            int priority,
+                            const char *message);
+
+  // Compare a region of memory with a known data patter, and report errors.
+  virtual int CheckRegion(void *addr,
+                          class Pattern *pat,
+                          int64 length,
+                          int offset,
+                          int64 patternoffset);
+
+  // Fast compare a block of memory.
+  virtual int CrcCheckPage(struct page_entry *srcpe);
+
+  // Fast copy a block of memory, while verifying correctness.
+  virtual int CrcCopyPage(struct page_entry *dstpe,
+                          struct page_entry *srcpe);
+
+  // Fast copy a block of memory, while verifying correctness, and heating CPU.
+  virtual int CrcWarmCopyPage(struct page_entry *dstpe,
+                              struct page_entry *srcpe);
+
+  // Fill a page with its specified pattern.
+  virtual bool FillPage(struct page_entry *pe);
+
+  // Copy with address tagging.
+  virtual bool AdlerAddrMemcpyC(uint64 *dstmem64,
+                                uint64 *srcmem64,
+                                unsigned int size_in_bytes,
+                                AdlerChecksum *checksum,
+                                struct page_entry *pe);
+  // SSE copy with address tagging.
+  virtual bool AdlerAddrMemcpyWarm(uint64 *dstmem64,
+                                   uint64 *srcmem64,
+                                   unsigned int size_in_bytes,
+                                   AdlerChecksum *checksum,
+                                   struct page_entry *pe);
+  // Crc data with address tagging.
+  virtual bool AdlerAddrCrcC(uint64 *srcmem64,
+                             unsigned int size_in_bytes,
+                             AdlerChecksum *checksum,
+                             struct page_entry *pe);
+  // Setup tagging on an existing page.
+  virtual bool TagAddrC(uint64 *memwords,
+                        unsigned int size_in_bytes);
+  // Report a mistagged cacheline.
+  virtual bool ReportTagError(uint64 *mem64,
+                      uint64 actual,
+                      uint64 tag);
+  // Print out the error record of the tag mismatch.
+  virtual void ProcessTagError(struct ErrorRecord *error,
+                       int priority,
+                       const char *message);
+
+  // A worker thread can yield itself to give up CPU until it's scheduled again
+  bool YieldSelf();
+
+ protected:
+  // General state variables that all subclasses need.
+  int thread_num_;                  // Thread ID.
+  volatile bool status_;            // Error status.
+  volatile int64 pages_copied_;     // Recorded for memory bandwidth calc.
+  volatile int64 errorcount_;       // Miscompares seen by this thread.
+
+  cpu_set_t cpu_mask_;              // Cores this thread is allowed to run on.
+  volatile uint32 tag_;             // Tag hint for memory this thread can use.
+
+  bool tag_mode_;                   // Tag cachelines with vaddr.
+
+  // Thread timing variables.
+  struct timeval start_time_;        // Worker thread start time.
+  volatile int64 runduration_usec_;  // Worker run duration in u-seconds.
+
+  // Function passed to pthread_create.
+  void *(*thread_spawner_)(void *args);
+  pthread_t thread_;                // Pthread thread ID.
+  Priority priority_;               // Worker thread priority.
+  class Sat *sat_;                  // Reference to parent stest object.
+  class OsLayer *os_;               // Os abstraction: put hacks here.
+  class PatternList *patternlist_;  // Reference to data patterns.
+
+  // Work around style guide ban on sizeof(int).
+  static const uint64 iamint_ = 0;
+  static const int wordsize_ = sizeof(iamint_);
+
+ private:
+  WorkerStatus *worker_status_;
+
+  DISALLOW_COPY_AND_ASSIGN(WorkerThread);
+};
+
+// Worker thread to perform File IO.
+class FileThread : public WorkerThread {
+ public:
+  FileThread();
+  // Set filename to use for file IO.
+  virtual void SetFile(const char *filename_init);
+  virtual bool Work();
+
+  // Calculate worker thread specific bandwidth.
+  virtual float GetDeviceCopiedData()
+    {return GetCopiedData()*2;}
+  virtual float GetMemoryCopiedData();
+
+ protected:
+  // Record of where these pages were sourced from, and what
+  // potentially broken components they passed through.
+  struct PageRec {
+     struct Pattern *pattern;  // This is the data it should contain.
+     void *src;  // This is the memory location the data was sourced from.
+     void *dst;  // This is where it ended up.
+  };
+
+  // These are functions used by the various work loops.
+  // Pretty print and log a data miscompare. Disks require
+  // slightly different error handling.
+  virtual void ProcessError(struct ErrorRecord *er,
+                            int priority,
+                            const char *message);
+
+  virtual bool OpenFile(int *pfile);
+  virtual bool CloseFile(int fd);
+
+  // Read and write whole file to disk.
+  virtual bool WritePages(int fd);
+  virtual bool ReadPages(int fd);
+
+  // Read and write pages to disk.
+  virtual bool WritePageToFile(int fd, struct page_entry *src);
+  virtual bool ReadPageFromFile(int fd, struct page_entry *dst);
+
+  // Sector tagging support.
+  virtual bool SectorTagPage(struct page_entry *src, int block);
+  virtual bool SectorValidatePage(const struct PageRec &page,
+                                  struct page_entry *dst,
+                                  int block);
+
+  // Get memory for an incoming data transfer..
+  virtual bool PagePrepare();
+  // Remove memory allocated for data transfer.
+  virtual bool PageTeardown();
+
+  // Get memory for an incoming data transfer..
+  virtual bool GetEmptyPage(struct page_entry *dst);
+  // Get memory for an outgoing data transfer..
+  virtual bool GetValidPage(struct page_entry *dst);
+  // Throw out a used empty page.
+  virtual bool PutEmptyPage(struct page_entry *src);
+  // Throw out a used, filled page.
+  virtual bool PutValidPage(struct page_entry *src);
+
+
+  struct PageRec *page_recs_;          // Array of page records.
+  int crc_page_;                        // Page currently being CRC checked.
+  string filename_;                     // Name of file to access.
+  string devicename_;                   // Name of device file is on.
+
+  bool page_io_;                        // Use page pool for IO.
+  void *local_page_;                   // malloc'd page fon non-pool IO.
+  int pass_;                            // Number of writes to the file so far.
+
+  // Tag to detect file corruption.
+  struct SectorTag {
+    volatile uint8 magic;
+    volatile uint8 block;
+    volatile uint8 sector;
+    volatile uint8 pass;
+    char pad[512-4];
+  };
+
+  DISALLOW_COPY_AND_ASSIGN(FileThread);
+};
+
+
+// Worker thread to perform Network IO.
+class NetworkThread : public WorkerThread {
+ public:
+  NetworkThread();
+  // Set hostname to use for net IO.
+  virtual void SetIP(const char *ipaddr_init);
+  virtual bool Work();
+
+  // Calculate worker thread specific bandwidth.
+  virtual float GetDeviceCopiedData()
+    {return GetCopiedData()*2;}
+
+ protected:
+  // IsReadyToRunNoPause() wrapper, for NetworkSlaveThread to override.
+  virtual bool IsNetworkStopSet();
+  virtual bool CreateSocket(int *psocket);
+  virtual bool CloseSocket(int sock);
+  virtual bool Connect(int sock);
+  virtual bool SendPage(int sock, struct page_entry *src);
+  virtual bool ReceivePage(int sock, struct page_entry *dst);
+  char ipaddr_[256];
+  int sock_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NetworkThread);
+};
+
+// Worker thread to reflect Network IO.
+class NetworkSlaveThread : public NetworkThread {
+ public:
+  NetworkSlaveThread();
+  // Set socket for IO.
+  virtual void SetSock(int sock);
+  virtual bool Work();
+
+ protected:
+  virtual bool IsNetworkStopSet();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NetworkSlaveThread);
+};
+
+// Worker thread to detect incoming Network IO.
+class NetworkListenThread : public NetworkThread {
+ public:
+  NetworkListenThread();
+  virtual bool Work();
+
+ private:
+  virtual bool Listen();
+  virtual bool Wait();
+  virtual bool GetConnection(int *pnewsock);
+  virtual bool SpawnSlave(int newsock, int threadid);
+  virtual bool ReapSlaves();
+
+  // For serviced incoming connections.
+  struct ChildWorker {
+    WorkerStatus status;
+    NetworkSlaveThread thread;
+  };
+  typedef vector<ChildWorker*> ChildVector;
+  ChildVector child_workers_;
+
+  DISALLOW_COPY_AND_ASSIGN(NetworkListenThread);
+};
+
+// Worker thread to perform Memory Copy.
+class CopyThread : public WorkerThread {
+ public:
+  CopyThread() {}
+  virtual bool Work();
+  // Calculate worker thread specific bandwidth.
+  virtual float GetMemoryCopiedData()
+    {return GetCopiedData()*2;}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CopyThread);
+};
+
+// Worker thread to perform Memory Invert.
+class InvertThread : public WorkerThread {
+ public:
+  InvertThread() {}
+  virtual bool Work();
+  // Calculate worker thread specific bandwidth.
+  virtual float GetMemoryCopiedData()
+    {return GetCopiedData()*4;}
+
+ private:
+  virtual int InvertPageUp(struct page_entry *srcpe);
+  virtual int InvertPageDown(struct page_entry *srcpe);
+  DISALLOW_COPY_AND_ASSIGN(InvertThread);
+};
+
+// Worker thread to fill blank pages on startup.
+class FillThread : public WorkerThread {
+ public:
+  FillThread();
+  // Set how many pages this thread should fill before exiting.
+  virtual void SetFillPages(int64 num_pages_to_fill_init);
+  virtual bool Work();
+
+ private:
+  // Fill a page with the data pattern in pe->pattern.
+  virtual bool FillPageRandom(struct page_entry *pe);
+  int64 num_pages_to_fill_;
+  DISALLOW_COPY_AND_ASSIGN(FillThread);
+};
+
+// Worker thread to verify page data matches pattern data.
+// Thread will check and replace pages until "done" flag is set,
+// then it will check and discard pages until no more remain.
+class CheckThread : public WorkerThread {
+ public:
+  CheckThread() {}
+  virtual bool Work();
+  // Calculate worker thread specific bandwidth.
+  virtual float GetMemoryCopiedData()
+    {return GetCopiedData();}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CheckThread);
+};
+
+
+// Worker thread to poll for system error messages.
+// Thread will check for messages until "done" flag is set.
+class ErrorPollThread : public WorkerThread {
+ public:
+  ErrorPollThread() {}
+  virtual bool Work();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ErrorPollThread);
+};
+
+// Computation intensive worker thread to stress CPU.
+class CpuStressThread : public WorkerThread {
+ public:
+  CpuStressThread() {}
+  virtual bool Work();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CpuStressThread);
+};
+
+// Worker thread that tests the correctness of the
+// CPU Cache Coherency Protocol.
+class CpuCacheCoherencyThread : public WorkerThread {
+ public:
+  CpuCacheCoherencyThread(cc_cacheline_data *cc_data,
+                          int cc_cacheline_count_,
+                          int cc_thread_num_,
+                          int cc_inc_count_);
+  virtual bool Work();
+
+ protected:
+  cc_cacheline_data *cc_cacheline_data_;  // Datstructure for each cacheline.
+  int cc_local_num_;        // Local counter for each thread.
+  int cc_cacheline_count_;  // Number of cache lines to operate on.
+  int cc_thread_num_;       // The integer id of the thread which is
+                            // used as an index into the integer array
+                            // of the cacheline datastructure.
+  int cc_inc_count_;        // Number of times to increment the counter.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CpuCacheCoherencyThread);
+};
+
+// Worker thread to perform disk test.
+class DiskThread : public WorkerThread {
+ public:
+  explicit DiskThread(DiskBlockTable *block_table);
+  virtual ~DiskThread();
+  // Calculate disk thread specific bandwidth.
+  virtual float GetDeviceCopiedData() {
+    return (blocks_written_ * write_block_size_ +
+            blocks_read_ * read_block_size_) / kMegabyte;}
+
+  // Set filename for device file (in /dev).
+  virtual void SetDevice(const char *device_name);
+  // Set various parameters that control the behaviour of the test.
+  virtual bool SetParameters(int read_block_size,
+                             int write_block_size,
+                             int64 segment_size,
+                             int64 cache_size,
+                             int blocks_per_segment,
+                             int64 read_threshold,
+                             int64 write_threshold,
+                             int non_destructive);
+
+  virtual bool Work();
+
+  virtual float GetMemoryCopiedData() {return 0;}
+
+ protected:
+  static const int kSectorSize = 512;       // Size of sector on disk.
+  static const int kBufferAlignment = 512;  // Buffer alignment required by the
+                                            // kernel.
+  static const int kBlockRetry = 100;       // Number of retries to allocate
+                                            // sectors.
+
+  enum IoOp {
+    ASYNC_IO_READ   = 0,
+    ASYNC_IO_WRITE  = 1
+  };
+
+  virtual bool OpenDevice(int *pfile);
+  virtual bool CloseDevice(int fd);
+
+  // Retrieves the size (in bytes) of the disk/file.
+  virtual bool GetDiskSize(int fd);
+
+  // Retrieves the current time in microseconds.
+  virtual int64 GetTime();
+
+  // Do an asynchronous disk I/O operation.
+  virtual bool AsyncDiskIO(IoOp op, int fd, void *buf, int64 size,
+                           int64 offset, int64 timeout);
+
+  // Write a block to disk.
+  virtual bool WriteBlockToDisk(int fd, BlockData *block);
+
+  // Verify a block on disk.
+  virtual bool ValidateBlockOnDisk(int fd, BlockData *block);
+
+  // Main work loop.
+  virtual bool DoWork(int fd);
+
+  int read_block_size_;       // Size of blocks read from disk, in bytes.
+  int write_block_size_;      // Size of blocks written to disk, in bytes.
+  int64 blocks_read_;         // Number of blocks read in work loop.
+  int64 blocks_written_;      // Number of blocks written in work loop.
+  int64 segment_size_;        // Size of disk segments (in bytes) that the disk
+                              // will be split into where testing can be
+                              // confined to a particular segment.
+                              // Allows for control of how evenly the disk will
+                              // be tested.  Smaller segments imply more even
+                              // testing (less random).
+  int blocks_per_segment_;    // Number of blocks that will be tested per
+                              // segment.
+  int cache_size_;            // Size of disk cache, in bytes.
+  int queue_size_;            // Length of in-flight-blocks queue, in blocks.
+  int non_destructive_;       // Use non-destructive mode or not.
+  int update_block_table_;    // If true, assume this is the thread
+                              // responsible for writing the data in the disk
+                              // for this block device and, therefore,
+                              // update the block table. If false, just use
+                              // the block table to get data.
+
+  // read/write times threshold for reporting a problem
+  int64 read_threshold_;      // Maximum time a read should take (in us) before
+                              // a warning is given.
+  int64 write_threshold_;     // Maximum time a write should take (in us) before
+                              // a warning is given.
+  int64 read_timeout_;        // Maximum time a read can take before a timeout
+                              // and the aborting of the read operation.
+  int64 write_timeout_;       // Maximum time a write can take before a timeout
+                              // and the aborting of the write operation.
+
+  string device_name_;        // Name of device file to access.
+  int64 device_sectors_;      // Number of sectors on the device.
+
+  std::queue<BlockData*> in_flight_sectors_;   // Queue of sectors written but
+                                                // not verified.
+  void *block_buffer_;        // Pointer to aligned block buffer.
+
+  io_context_t aio_ctx_;     // Asynchronous I/O context for Linux native AIO.
+
+  DiskBlockTable *block_table_;  // Disk Block Table, shared by all disk
+                                 // threads that read / write at the same
+                                 // device
+
+  DISALLOW_COPY_AND_ASSIGN(DiskThread);
+};
+
+class RandomDiskThread : public DiskThread {
+ public:
+  explicit RandomDiskThread(DiskBlockTable *block_table);
+  virtual ~RandomDiskThread();
+  // Main work loop.
+  virtual bool DoWork(int fd);
+ protected:
+  DISALLOW_COPY_AND_ASSIGN(RandomDiskThread);
+};
+
+// Worker thread to perform checks in a specific memory region.
+class MemoryRegionThread : public WorkerThread {
+ public:
+  MemoryRegionThread();
+  ~MemoryRegionThread();
+  virtual bool Work();
+  void ProcessError(struct ErrorRecord *error, int priority,
+                    const char *message);
+  bool SetRegion(void *region, int64 size);
+  // Calculate worker thread specific bandwidth.
+  virtual float GetMemoryCopiedData()
+    {return GetCopiedData();}
+  virtual float GetDeviceCopiedData()
+    {return GetCopiedData() * 2;}
+  void SetIdentifier(string identifier) {
+    identifier_ = identifier;
+  }
+
+ protected:
+  // Page queue for this particular memory region.
+  char *region_;
+  PageEntryQueue *pages_;
+  bool error_injection_;
+  int phase_;
+  string identifier_;
+  static const int kPhaseNoPhase = 0;
+  static const int kPhaseCopy = 1;
+  static const int kPhaseCheck = 2;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MemoryRegionThread);
+};
+
+#endif  // STRESSAPPTEST_WORKER_H_
diff --git a/stressapptest.1 b/stressapptest.1
new file mode 100644
index 0000000..695f9ee
--- /dev/null
+++ b/stressapptest.1
@@ -0,0 +1,187 @@
+.TH STRESSAPPTEST 1 2009-10-20
+.SH NAME
+stressapptest \- stress test application for simulating high load situations
+.SH SYNOPSIS
+.B stressapptest
+.RI [ options ]
+.SH DESCRIPTION
+This manual page documents briefly the
+.B stressapptest
+command.
+.PP
+\fBstressapptest\fP (unix name for Stressful Application Test) is a program that
+tries to maximize randomized traffic to memory from processor and I/O, with the
+intent of creating a realistic high load situation in order to test the existing
+hardware devices in a computer.
+.SH OPTIONS
+This program supports the following options:
+
+.TP
+.B \-A
+Run in degraded mode on incompatible systems.
+
+.TP
+.B \-C <threads>
+Number of memory CPU stress threads to run.
+
+.TP
+.B \-d <device>
+Add a direct write disk thread with block device (or file) 'device'.
+
+.TP
+.B \-f <filename>
+Add a disk thread with tempfile 'filename'.
+
+.TP
+.B \-F
+Don't result check each transaction.
+
+.TP
+.B \-i <threads>
+Number of memory invert threads to run.
+
+.TP
+.B \-l <logfile>
+Log output to file 'logfile'.
+
+.TP
+.B \-m <threads>
+Number of memory copy threads to run.
+
+.TP
+.B \-M <mbytes>
+Megabytes of RAM to test.
+
+.TP
+.B \-n <ipaddr>
+Add a network thread connecting to system at 'ipaddr'.
+
+.TP
+.B \-p <pagesize>
+Size in bytes of memory chunks.
+
+.TP
+.B \-s <seconds>
+Number of seconds to run.
+
+.TP
+.B \-v <level>
+Verbosity (0-20), default is 8.
+
+.TP
+.B \-W
+Use more CPU-stressful memory copy.
+
+.TP
+.B \-\-blocks\-per\-segment <number>
+Number of blocks to read/write per segment per iteration (\-d).
+
+.TP
+.B \-\-cache\-size <size>
+Size of disk cache (\-d).
+
+.TP
+.B \-\-cc_inc_count <number>
+Number of times to increment the cacheline's member.
+
+.TP
+.B \-\-cc_line_count <number>
+Mumber of cache line sized datastructures to allocate for the cache coherency
+threads to operate.
+
+.TP
+.B \-\-cc_test
+Do the cache coherency testing.
+
+.TP
+.B \-\-destructive
+Write/wipe disk partition (\-d).
+
+.TP
+.B \-\-filesize <size>
+Size of disk IO tempfiles.
+
+.TP
+.B \-\-findfiles
+Find locations to do disk IO automatically.
+
+.TP
+.B \-\-force_errors
+Inject false errors to test error handling.
+
+.TP
+.B \-\-force_errors_like_crazy
+Inject a lot of false errors to test error handling.
+
+.TP
+.B \-\-listen
+Run threads that listen for incoming net connections.
+
+.TP
+.B \-\-local_numa
+Choose memory regions associated with each CPU to be tested by that CPU.
+
+.TP
+.B \-\-max_errors <number>
+Exit early after finding specified number of errors.
+
+.TP
+.B \-\-monitor_mode
+Only do ECC error polling, no stress load.
+
+.TP
+.B \-\-no_errors
+Run without checking for ECC or other errors.
+
+.TP
+.B \-\-paddr_base <address>
+Allocate memory starting from this address.
+
+.TP
+.B \-\-pause_delay <seconds>
+Delay (in seconds) between power spikes.
+
+.TP
+.B \-\-pause_duration <seconds>
+Duration (in seconds) of each pause.
+
+.TP
+.B \-\-random-threads <number>
+Number of random threads for each disk write thread (\-d).
+
+.TP
+.B \-\-read-block-size <size>
+Size of block for reading (\-d).
+
+.TP
+.B \-\-read-threshold <time>
+Maximum time (in us) a block read should take (\-d).
+
+.TP
+.B \-\-remote_numa <time>
+Choose memory regions not associated with each CPU to be tested by that CPU.
+
+.TP
+.B \-\-segment-size <size>
+Size of segments to split disk into (\-d).
+
+.TP
+.B \-\-stop_on_errors
+Stop after finding the first error.
+
+.TP
+.B \-\-write-block-size <size>
+Size of block for writing (\-d). If not defined, the size of block for writing
+will be defined as the size of block for reading.
+
+.TP
+.B \-\-write-threshold <time>
+Maximum time (in us) a block write should take (\-d).
+
+.SH SEE ALSO
+.BR http://code.google.com/p/stressapptest/
+.SH AUTHOR
+stressapptest was written by Nick Sanders and Rapahel Menderico (Google Inc).
+.PP
+This manual page was written by Michael Prokop <mika@debian.org>
+for the Debian project (and may be used by others).