sources/host-tools/make-3.81/configure.in - platform/ndk - Git at Google

 # Process this file with autoconf to produce a configure script.
 #
 # Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
 # 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 # This file is part of GNU Make.
 #
 # GNU Make 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.
 #
 # GNU Make 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
 # GNU Make; see the file COPYING.  If not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 AC_INIT([GNU make],[3.81],[bug-make@gnu.org])

 AC_PREREQ(2.59)
 AC_REVISION([[$Id: configure.in,v 1.142 2006/04/01 06:36:40 psmith Exp $]])

 # Autoconf setup
 AC_CONFIG_AUX_DIR(config)
 AC_CONFIG_SRCDIR(vpath.c)
 AC_CONFIG_HEADERS(config.h)

 # Automake setup
 AM_INIT_AUTOMAKE([1.9])

 # Checks for programs.
 AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_RANLIB
 AC_PROG_CPP
 AC_CHECK_PROG(AR, ar, ar, ar)
 # Perl is needed for the test suite (only)
 AC_CHECK_PROG(PERL, perl, perl, perl)

 # Specialized system macros
 AC_CANONICAL_HOST
 AC_AIX
 AC_ISC_POSIX
 AC_MINIX

 # Needed for ansi2knr
 AM_C_PROTOTYPES

 # Enable gettext, in "external" mode.

 AM_GNU_GETTEXT_VERSION(0.14.1)
 AM_GNU_GETTEXT([external])

 # This test must come as early as possible after the compiler configuration
 # tests, because the choice of the file model can (in principle) affect
 # whether functions and headers are available, whether they work, etc.
 AC_SYS_LARGEFILE

 # Checks for libraries.
 AC_SEARCH_LIBS(getpwnam, [sun])

 # Checks for header files.
 AC_HEADER_STDC
 AC_HEADER_DIRENT
 AC_HEADER_STAT
 AC_HEADER_TIME
 AC_CHECK_HEADERS(stdlib.h locale.h unistd.h limits.h fcntl.h string.h \
 		 memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h)

 # Set a flag if we have an ANSI C compiler
 if test "$ac_cv_prog_cc_stdc" != no; then
   AC_DEFINE(HAVE_ANSI_COMPILER, 1,
 	      [Define if your compiler conforms to the ANSI C standard.])
 fi


 # Determine what kind of variadic function calls we support
 AC_CHECK_HEADERS(stdarg.h varargs.h, break)

 AM_PROG_CC_C_O
 AC_C_CONST
 AC_TYPE_SIGNAL
 AC_TYPE_UID_T
 AC_TYPE_PID_T

 # Find some definition for uintmax_t

 AC_CHECK_TYPE(uintmax_t,,[
   uintmax_t="unsigned long"
   AC_CHECK_TYPE(unsigned long long,[uintmax_t="unsigned long long"])
   AC_DEFINE_UNQUOTED(uintmax_t,$uintmax_t,
     [Define uintmax_t if not defined in <stdint.h> or <inttypes.h>.])])

 # Find out whether our struct stat returns nanosecond resolution timestamps.

 AC_STRUCT_ST_MTIM_NSEC
 AC_MSG_CHECKING([whether to use high resolution file timestamps])
 AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [
   make_cv_file_timestamp_hi_res=no
   if test "$ac_cv_struct_st_mtim_nsec" != no; then
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #	if HAVE_INTTYPES_H
 #	 include <inttypes.h>
 #	endif]],
 	              [[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])],
       [make_cv_file_timestamp_hi_res=yes],
       [])
   fi])
 AC_MSG_RESULT($make_cv_file_timestamp_hi_res)
 if test "$make_cv_file_timestamp_hi_res" = yes; then
   val=1
 else
   val=0
 fi
 AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val,
 		   [Use high resolution file timestamps if nonzero.])

 if test "$make_cv_file_timestamp_hi_res" = yes; then
   # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
   # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
   AC_SEARCH_LIBS(clock_gettime, [rt posix4])
   if test "$ac_cv_search_clock_gettime" != no; then
     AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
 	      [Define if you have the clock_gettime function.])
   fi
 fi

 # Check for DOS-style pathnames.
 pds_AC_DOS_PATHS

 # See if we have a standard version of gettimeofday().  Since actual
 # implementations can differ, just make sure we have the most common
 # one.
 AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday,
   [ac_cv_func_gettimeofday=no
    AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
                   int main ()
 	          {
 		    struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
 		    exit (gettimeofday (&t, 0) != 0
 		          || t.tv_sec < 0 || t.tv_usec < 0);
 	          }]])],
 		  [ac_cv_func_gettimeofday=yes],
 		  [ac_cv_func_gettimeofday=no],
 		  [ac_cv_func_gettimeofday="no (cross-compiling)"])])
 if test "$ac_cv_func_gettimeofday" = yes; then
   AC_DEFINE(HAVE_GETTIMEOFDAY, 1,
 	    [Define if you have a standard gettimeofday function])
 fi

 AC_CHECK_FUNCS(	memcpy memmove strchr strdup mkstemp mktemp fdopen \
 	        bsd_signal dup2 getcwd realpath sigsetmask sigaction \
                 getgroups seteuid setegid setlinebuf setreuid setregid \
                 getrlimit setrlimit setvbuf pipe strerror strsignal \
 		lstat readlink atexit)

 AC_FUNC_SETVBUF_REVERSED

 # strcoll() is used by the GNU glob library
 AC_FUNC_STRCOLL

 AC_FUNC_ALLOCA
 AC_FUNC_FORK([])
 AC_FUNC_VPRINTF
 AC_FUNC_CLOSEDIR_VOID

 AC_FUNC_GETLOADAVG

 # AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
 # doesn't.  So, we will.

 if test "$ac_cv_header_nlist_h" = yes; then
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
 	[[struct nlist nl;
           nl.n_name = "string";
           return 0;]])],
 	[make_cv_nlist_struct=yes],
 	[make_cv_nlist_struct=no])
   if test "$make_cv_nlist_struct" = yes; then
     AC_DEFINE(NLIST_STRUCT, 1,
        [Define if struct nlist.n_name is a pointer rather than an array.])
   fi
 fi

 AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
   [AC_INCLUDES_DEFAULT
 #include <signal.h>
 /* NetBSD declares sys_siglist in unistd.h.  */
 #if HAVE_UNISTD_H
 # include <unistd.h>
 #endif
 ])


 # Check out the wait reality.
 AC_CHECK_HEADERS(sys/wait.h)
 AC_CHECK_FUNCS(waitpid wait3)
 AC_MSG_CHECKING(for union wait)
 AC_CACHE_VAL(make_cv_union_wait, [dnl
     AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 #include <sys/wait.h>]],
      [[union wait status; int pid; pid = wait (&status);
 #ifdef WEXITSTATUS
 /* Some POSIXoid systems have both the new-style macros and the old
    union wait type, and they do not work together.  If union wait
    conflicts with WEXITSTATUS et al, we don't want to use it at all.  */
         if (WEXITSTATUS (status) != 0) pid = -1;
 #ifdef WTERMSIG
         /* If we have WEXITSTATUS and WTERMSIG, just use them on ints.  */
         -- blow chunks here --
 #endif
 #endif
 #ifdef HAVE_WAITPID
         /* Make sure union wait works with waitpid.  */
         pid = waitpid (-1, &status, 0);
 #endif
       ]])],
     [make_cv_union_wait=yes],
     [make_cv_union_wait=no])])
 if test "$make_cv_union_wait" = yes; then
   AC_DEFINE(HAVE_UNION_WAIT, 1,
             [Define this if you have the \`union wait' type in <sys/wait.h>.])
 fi
 AC_MSG_RESULT($make_cv_union_wait)


 # If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
 if test "$PATH_SEPARATOR" = ';'; then
   AC_DEFINE(HAVE_DOS_PATHS, 1,
             [Define this if your system requires backslashes or drive specs in pathnames.])
 fi


 # See if the user wants to use pmake's "customs" distributed build capability

 AC_SUBST(REMOTE) REMOTE=stub
 use_customs=false
 AC_ARG_WITH(customs,
   AC_HELP_STRING([--with-customs=DIR],
 		 [enable remote jobs via Customs--see README.customs]),
   [case $withval in
     n|no) : ;;
     *) make_cppflags="$CPPFLAGS"
        case $withval in
 	 y|ye|yes) : ;;
 	 *) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
 	    make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
        esac
        CF_NETLIBS
        AC_CHECK_HEADER(customs.h,
 		       [use_customs=true
 		         REMOTE=cstms
 			 LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
 		       [with_customs=no
 			 CPPFLAGS="$make_cppflags" make_badcust=yes])
        ;;
   esac])
 # Tell automake about this, so it can include the right .c files.
 AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true)

 # See if the user asked to handle case insensitive file systems.

 AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names])
 AC_ARG_ENABLE(case-insensitive-file-system,
   AC_HELP_STRING([--enable-case-insensitive-file-system],
 		 [enable case insensitive file system support]),
   case_insensitive_fs="yes" AC_DEFINE(HAVE_CASE_INSENSITIVE_FS),
   case_insensitive_fs="no")

 # See if we can handle the job server feature, and if the user wants it.

 AC_ARG_ENABLE(job-server,
   AC_HELP_STRING([--disable-job-server],
                  [disallow recursive make communication during -jN]),
   [make_cv_job_server="$enableval" user_job_server="$enableval"],
   [make_cv_job_server="yes"])

 has_wait_nohang=yes
 case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
   no/no) has_wait_nohang=no ;;
 esac

 AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
       [[return SA_RESTART;]])],
     [make_cv_sa_restart=yes],
     [make_cv_sa_restart=no])])

 if test "$make_cv_sa_restart" != no; then
   AC_DEFINE(HAVE_SA_RESTART, 1,
      [Define if <signal.h> defines the SA_RESTART constant.])
 fi

 # enable make_cv_sa_restart for OS/2 so that the jobserver will be enabled,
 # but do it after HAVE_SA_RESTART has been defined.
 case "$host_os" in
   os2*) make_cv_sa_restart=yes ;;
 esac

 case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in
   yes/yes/yes/yes/yes)
     AC_DEFINE(MAKE_JOBSERVER, 1,
               [Define this to enable job server support in GNU make.]);;
 esac

 # if we have both lstat() and readlink() then we can support symlink
 # timechecks.
 case "$ac_cv_func_lstat/$ac_cv_func_readlink" in
   yes/yes)
     AC_DEFINE(MAKE_SYMLINKS, 1,
               [Define this to enable symbolic link timestamp checking.]);;
 esac

 # Find the SCCS commands, so we can include them in our default rules.

 AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
 if test -f /usr/sccs/get; then
   make_cv_path_sccs_get=/usr/sccs/get
 else
   make_cv_path_sccs_get=get
 fi])
 AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"],
 	           [Define to the name of the SCCS 'get' command.])

 ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
 if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
    test -f s.conftest; then
   # We successfully created an SCCS file.
   AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
     if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
        test -f conftoast; then
        make_cv_sys_get_minus_G=yes
     else
        make_cv_sys_get_minus_G=no
     fi])
   case "$make_cv_sys_get_minus_G" in
     yes) AC_DEFINE(SCCS_GET_MINUS_G, 1,
            [Define this if the SCCS 'get' command understands the '-G<file>' option.]);;
   esac
 fi
 rm -f s.conftest conftoast

 # Check the system to see if it provides GNU glob.  If not, use our
 # local version.

 AC_MSG_CHECKING(if system libc has GNU glob)
 AC_CACHE_VAL(make_cv_sys_gnu_glob, [
  AC_EGREP_CPP(gnu glob,[
 #include <features.h>
 #include <glob.h>
 #include <fnmatch.h>

 #define GLOB_INTERFACE_VERSION 1
 #if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
 # include <gnu-versions.h>
 # if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
    gnu glob
 # endif
 #endif
  ], [AC_MSG_RESULT(yes)
 make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy])
 AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob'
 AC_SUBST(GLOBLIB) GLOBLIB=glob/libglob.a
 make_cv_sys_gnu_glob=no])])
 # Tell automake about this, so it can build the right .c files.
 AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no)

 # Let the makefile know what our build host is

 AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.])
 MAKE_HOST="$host"
 AC_SUBST(MAKE_HOST)

 w32_target_env=no
 AM_CONDITIONAL([WINDOWSENV], false)

 case "$host" in
   *-*-mingw32)
     AM_CONDITIONAL(WINDOWSENV, true)
     w32_target_env=yes
     AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
     AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
     ;;
 esac

 # Include the Maintainer's Makefile section, if it's here.

 MAINT_MAKEFILE=/dev/null
 if test -r "$srcdir/maintMakefile"; then
   MAINT_MAKEFILE="$srcdir/maintMakefile"
 fi
 AC_SUBST_FILE(MAINT_MAKEFILE)

 # Allow building with dmalloc
 AM_WITH_DMALLOC

 # Forcibly disable SET_MAKE.  If it's set it breaks things like the test
 # scripts, etc.
 SET_MAKE=

 # Sanity check and inform the user of what we found

 case "$make_badcust" in
   yes) echo
        echo "WARNING: --with-customs specified but no customs.h could be found;"
        echo "         disabling Customs support."
        echo ;;
 esac

 case "$with_customs" in
   ""|n|no|y|ye|yes) ;;
   *) if test -f "$with_customs/lib/libcustoms.a"; then
        :
      else
        echo
        echo "WARNING: '$with_customs/lib' does not appear to contain the"
        echo "         Customs library.  You must build and install Customs"
        echo "         before compiling GNU make."
        echo
      fi ;;
 esac

 case "$has_wait_nohang" in
   no) echo
       echo "WARNING: Your system has neither waitpid() nor wait3()."
       echo "         Without one of these, signal handling is unreliable."
       echo "         You should be aware that running GNU make with -j"
       echo "         could result in erratic behavior."
       echo ;;
 esac

 case "$make_cv_job_server/$user_job_server" in
   no/yes) echo
 	  echo "WARNING: Make job server requires a POSIX-ish system that"
 	  echo "         supports the pipe(), sigaction(), and either"
           echo "         waitpid() or wait3() functions.  Your system doesn't"
 	  echo "         appear to provide one or more of those."
 	  echo "         Disabling job server support."
           echo ;;
 esac


 # Specify what files are to be created.
 AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile)

 # OK, do it!

 AC_OUTPUT

 # We only generate the build.sh if we have a build.sh.in; we won't have
 # one before we've created a distribution.
 if test -f "$srcdir/build.sh.in"; then
   ./config.status --file build.sh
   chmod +x build.sh
 fi

 dnl Local Variables:
 dnl comment-start: "dnl "
 dnl comment-end: ""
 dnl comment-start-skip: "\\bdnl\\b\\s *"
 dnl compile-command: "make configure config.h.in"
 dnl End:
	# Process this file with autoconf to produce a configure script.
	#
	# Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
	# 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
	# This file is part of GNU Make.
	#
	# GNU Make 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.
	#
	# GNU Make 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
	# GNU Make; see the file COPYING. If not, write to the Free Software
	# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

	AC_INIT([GNU make],[3.81],[bug-make@gnu.org])

	AC_PREREQ(2.59)
	AC_REVISION([[$Id: configure.in,v 1.142 2006/04/01 06:36:40 psmith Exp $]])

	# Autoconf setup
	AC_CONFIG_AUX_DIR(config)
	AC_CONFIG_SRCDIR(vpath.c)
	AC_CONFIG_HEADERS(config.h)

	# Automake setup
	AM_INIT_AUTOMAKE([1.9])

	# Checks for programs.
	AC_PROG_CC
	AC_PROG_INSTALL
	AC_PROG_RANLIB
	AC_PROG_CPP
	AC_CHECK_PROG(AR, ar, ar, ar)
	# Perl is needed for the test suite (only)
	AC_CHECK_PROG(PERL, perl, perl, perl)

	# Specialized system macros
	AC_CANONICAL_HOST
	AC_AIX
	AC_ISC_POSIX
	AC_MINIX

	# Needed for ansi2knr
	AM_C_PROTOTYPES

	# Enable gettext, in "external" mode.

	AM_GNU_GETTEXT_VERSION(0.14.1)
	AM_GNU_GETTEXT([external])

	# This test must come as early as possible after the compiler configuration
	# tests, because the choice of the file model can (in principle) affect
	# whether functions and headers are available, whether they work, etc.
	AC_SYS_LARGEFILE

	# Checks for libraries.
	AC_SEARCH_LIBS(getpwnam, [sun])

	# Checks for header files.
	AC_HEADER_STDC
	AC_HEADER_DIRENT
	AC_HEADER_STAT
	AC_HEADER_TIME
	AC_CHECK_HEADERS(stdlib.h locale.h unistd.h limits.h fcntl.h string.h \
	memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h)

	# Set a flag if we have an ANSI C compiler
	if test "$ac_cv_prog_cc_stdc" != no; then
	AC_DEFINE(HAVE_ANSI_COMPILER, 1,
	[Define if your compiler conforms to the ANSI C standard.])
	fi


	# Determine what kind of variadic function calls we support
	AC_CHECK_HEADERS(stdarg.h varargs.h, break)

	AM_PROG_CC_C_O
	AC_C_CONST
	AC_TYPE_SIGNAL
	AC_TYPE_UID_T
	AC_TYPE_PID_T

	# Find some definition for uintmax_t

	AC_CHECK_TYPE(uintmax_t,,[
	uintmax_t="unsigned long"
	AC_CHECK_TYPE(unsigned long long,[uintmax_t="unsigned long long"])
	AC_DEFINE_UNQUOTED(uintmax_t,$uintmax_t,
	[Define uintmax_t if not defined in <stdint.h> or <inttypes.h>.])])

	# Find out whether our struct stat returns nanosecond resolution timestamps.

	AC_STRUCT_ST_MTIM_NSEC
	AC_MSG_CHECKING([whether to use high resolution file timestamps])
	AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [
	make_cv_file_timestamp_hi_res=no
	if test "$ac_cv_struct_st_mtim_nsec" != no; then
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
	# if HAVE_INTTYPES_H
	# include <inttypes.h>
	# endif]],
	[[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])],
	[make_cv_file_timestamp_hi_res=yes],
	[])
	fi])
	AC_MSG_RESULT($make_cv_file_timestamp_hi_res)
	if test "$make_cv_file_timestamp_hi_res" = yes; then
	val=1
	else
	val=0
	fi
	AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val,
	[Use high resolution file timestamps if nonzero.])

	if test "$make_cv_file_timestamp_hi_res" = yes; then
	# Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
	# Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
	AC_SEARCH_LIBS(clock_gettime, [rt posix4])
	if test "$ac_cv_search_clock_gettime" != no; then
	AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
	[Define if you have the clock_gettime function.])
	fi
	fi

	# Check for DOS-style pathnames.
	pds_AC_DOS_PATHS

	# See if we have a standard version of gettimeofday(). Since actual
	# implementations can differ, just make sure we have the most common
	# one.
	AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday,
	[ac_cv_func_gettimeofday=no
	AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
	int main ()
	{
	struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
	exit (gettimeofday (&t, 0) != 0
	\|\| t.tv_sec < 0 \|\| t.tv_usec < 0);
	}]])],
	[ac_cv_func_gettimeofday=yes],
	[ac_cv_func_gettimeofday=no],
	[ac_cv_func_gettimeofday="no (cross-compiling)"])])
	if test "$ac_cv_func_gettimeofday" = yes; then
	AC_DEFINE(HAVE_GETTIMEOFDAY, 1,
	[Define if you have a standard gettimeofday function])
	fi

	AC_CHECK_FUNCS( memcpy memmove strchr strdup mkstemp mktemp fdopen \
	bsd_signal dup2 getcwd realpath sigsetmask sigaction \
	getgroups seteuid setegid setlinebuf setreuid setregid \
	getrlimit setrlimit setvbuf pipe strerror strsignal \
	lstat readlink atexit)

	AC_FUNC_SETVBUF_REVERSED

	# strcoll() is used by the GNU glob library
	AC_FUNC_STRCOLL

	AC_FUNC_ALLOCA
	AC_FUNC_FORK([])
	AC_FUNC_VPRINTF
	AC_FUNC_CLOSEDIR_VOID

	AC_FUNC_GETLOADAVG

	# AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
	# doesn't. So, we will.

	if test "$ac_cv_header_nlist_h" = yes; then
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
	[[struct nlist nl;
	nl.n_name = "string";
	return 0;]])],
	[make_cv_nlist_struct=yes],
	[make_cv_nlist_struct=no])
	if test "$make_cv_nlist_struct" = yes; then
	AC_DEFINE(NLIST_STRUCT, 1,
	[Define if struct nlist.n_name is a pointer rather than an array.])
	fi
	fi

	AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
	[AC_INCLUDES_DEFAULT
	#include <signal.h>
	/* NetBSD declares sys_siglist in unistd.h. */
	#if HAVE_UNISTD_H
	# include <unistd.h>
	#endif
	])


	# Check out the wait reality.
	AC_CHECK_HEADERS(sys/wait.h)
	AC_CHECK_FUNCS(waitpid wait3)
	AC_MSG_CHECKING(for union wait)
	AC_CACHE_VAL(make_cv_union_wait, [dnl
	AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
	#include <sys/wait.h>]],
	[[union wait status; int pid; pid = wait (&status);
	#ifdef WEXITSTATUS
	/* Some POSIXoid systems have both the new-style macros and the old
	union wait type, and they do not work together. If union wait
	conflicts with WEXITSTATUS et al, we don't want to use it at all. */
	if (WEXITSTATUS (status) != 0) pid = -1;
	#ifdef WTERMSIG
	/* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
	-- blow chunks here --
	#endif
	#endif
	#ifdef HAVE_WAITPID
	/* Make sure union wait works with waitpid. */
	pid = waitpid (-1, &status, 0);
	#endif
	]])],
	[make_cv_union_wait=yes],
	[make_cv_union_wait=no])])
	if test "$make_cv_union_wait" = yes; then
	AC_DEFINE(HAVE_UNION_WAIT, 1,
	[Define this if you have the \`union wait' type in <sys/wait.h>.])
	fi
	AC_MSG_RESULT($make_cv_union_wait)


	# If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
	if test "$PATH_SEPARATOR" = ';'; then
	AC_DEFINE(HAVE_DOS_PATHS, 1,
	[Define this if your system requires backslashes or drive specs in pathnames.])
	fi


	# See if the user wants to use pmake's "customs" distributed build capability

	AC_SUBST(REMOTE) REMOTE=stub
	use_customs=false
	AC_ARG_WITH(customs,
	AC_HELP_STRING([--with-customs=DIR],
	[enable remote jobs via Customs--see README.customs]),
	[case $withval in
	n\|no) : ;;
	*) make_cppflags="$CPPFLAGS"
	case $withval in
	y\|ye\|yes) : ;;
	*) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
	make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
	esac
	CF_NETLIBS
	AC_CHECK_HEADER(customs.h,
	[use_customs=true
	REMOTE=cstms
	LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
	[with_customs=no
	CPPFLAGS="$make_cppflags" make_badcust=yes])
	;;
	esac])
	# Tell automake about this, so it can include the right .c files.
	AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true)

	# See if the user asked to handle case insensitive file systems.

	AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names])
	AC_ARG_ENABLE(case-insensitive-file-system,
	AC_HELP_STRING([--enable-case-insensitive-file-system],
	[enable case insensitive file system support]),
	case_insensitive_fs="yes" AC_DEFINE(HAVE_CASE_INSENSITIVE_FS),
	case_insensitive_fs="no")

	# See if we can handle the job server feature, and if the user wants it.

	AC_ARG_ENABLE(job-server,
	AC_HELP_STRING([--disable-job-server],
	[disallow recursive make communication during -jN]),
	[make_cv_job_server="$enableval" user_job_server="$enableval"],
	[make_cv_job_server="yes"])

	has_wait_nohang=yes
	case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
	no/no) has_wait_nohang=no ;;
	esac

	AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
	[[return SA_RESTART;]])],
	[make_cv_sa_restart=yes],
	[make_cv_sa_restart=no])])

	if test "$make_cv_sa_restart" != no; then
	AC_DEFINE(HAVE_SA_RESTART, 1,
	[Define if <signal.h> defines the SA_RESTART constant.])
	fi

	# enable make_cv_sa_restart for OS/2 so that the jobserver will be enabled,
	# but do it after HAVE_SA_RESTART has been defined.
	case "$host_os" in
	os2*) make_cv_sa_restart=yes ;;
	esac

	case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in
	yes/yes/yes/yes/yes)
	AC_DEFINE(MAKE_JOBSERVER, 1,
	[Define this to enable job server support in GNU make.]);;
	esac

	# if we have both lstat() and readlink() then we can support symlink
	# timechecks.
	case "$ac_cv_func_lstat/$ac_cv_func_readlink" in
	yes/yes)
	AC_DEFINE(MAKE_SYMLINKS, 1,
	[Define this to enable symbolic link timestamp checking.]);;
	esac

	# Find the SCCS commands, so we can include them in our default rules.

	AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
	if test -f /usr/sccs/get; then
	make_cv_path_sccs_get=/usr/sccs/get
	else
	make_cv_path_sccs_get=get
	fi])
	AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"],
	[Define to the name of the SCCS 'get' command.])

	ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
	if ( /usr/sccs/admin -n s.conftest \|\| admin -n s.conftest ) >/dev/null 2>&1 &&
	test -f s.conftest; then
	# We successfully created an SCCS file.
	AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
	if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
	test -f conftoast; then
	make_cv_sys_get_minus_G=yes
	else
	make_cv_sys_get_minus_G=no
	fi])
	case "$make_cv_sys_get_minus_G" in
	yes) AC_DEFINE(SCCS_GET_MINUS_G, 1,
	[Define this if the SCCS 'get' command understands the '-G<file>' option.]);;
	esac
	fi
	rm -f s.conftest conftoast

	# Check the system to see if it provides GNU glob. If not, use our
	# local version.

	AC_MSG_CHECKING(if system libc has GNU glob)
	AC_CACHE_VAL(make_cv_sys_gnu_glob, [
	AC_EGREP_CPP(gnu glob,[
	#include <features.h>
	#include <glob.h>
	#include <fnmatch.h>

	#define GLOB_INTERFACE_VERSION 1
	#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
	# include <gnu-versions.h>
	# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
	gnu glob
	# endif
	#endif
	], [AC_MSG_RESULT(yes)
	make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy])
	AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob'
	AC_SUBST(GLOBLIB) GLOBLIB=glob/libglob.a
	make_cv_sys_gnu_glob=no])])
	# Tell automake about this, so it can build the right .c files.
	AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no)

	# Let the makefile know what our build host is

	AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.])
	MAKE_HOST="$host"
	AC_SUBST(MAKE_HOST)

	w32_target_env=no
	AM_CONDITIONAL([WINDOWSENV], false)

	case "$host" in
	--mingw32)
	AM_CONDITIONAL(WINDOWSENV, true)
	w32_target_env=yes
	AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
	AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
	;;
	esac

	# Include the Maintainer's Makefile section, if it's here.

	MAINT_MAKEFILE=/dev/null
	if test -r "$srcdir/maintMakefile"; then
	MAINT_MAKEFILE="$srcdir/maintMakefile"
	fi
	AC_SUBST_FILE(MAINT_MAKEFILE)

	# Allow building with dmalloc
	AM_WITH_DMALLOC

	# Forcibly disable SET_MAKE. If it's set it breaks things like the test
	# scripts, etc.
	SET_MAKE=

	# Sanity check and inform the user of what we found

	case "$make_badcust" in
	yes) echo
	echo "WARNING: --with-customs specified but no customs.h could be found;"
	echo " disabling Customs support."
	echo ;;
	esac

	case "$with_customs" in
	""\|n\|no\|y\|ye\|yes) ;;
	*) if test -f "$with_customs/lib/libcustoms.a"; then
	:
	else
	echo
	echo "WARNING: '$with_customs/lib' does not appear to contain the"
	echo " Customs library. You must build and install Customs"
	echo " before compiling GNU make."
	echo
	fi ;;
	esac

	case "$has_wait_nohang" in
	no) echo
	echo "WARNING: Your system has neither waitpid() nor wait3()."
	echo " Without one of these, signal handling is unreliable."
	echo " You should be aware that running GNU make with -j"
	echo " could result in erratic behavior."
	echo ;;
	esac

	case "$make_cv_job_server/$user_job_server" in
	no/yes) echo
	echo "WARNING: Make job server requires a POSIX-ish system that"
	echo " supports the pipe(), sigaction(), and either"
	echo " waitpid() or wait3() functions. Your system doesn't"
	echo " appear to provide one or more of those."
	echo " Disabling job server support."
	echo ;;
	esac


	# Specify what files are to be created.
	AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile)

	# OK, do it!

	AC_OUTPUT

	# We only generate the build.sh if we have a build.sh.in; we won't have
	# one before we've created a distribution.
	if test -f "$srcdir/build.sh.in"; then
	./config.status --file build.sh
	chmod +x build.sh
	fi

	dnl Local Variables:
	dnl comment-start: "dnl "
	dnl comment-end: ""
	dnl comment-start-skip: "\\bdnl\\b\\s *"
	dnl compile-command: "make configure config.h.in"
	dnl End: