configure.ac - platform/external/elfutils - Git at Google

 dnl Process this file with autoconf to produce a configure script. -*-m4-*-
 dnl Configure input file for elfutils.
 dnl
 dnl Copyright (C) 1996-2002, 2003, 2004 Red Hat, Inc.
 dnl
 dnl This program is free software; you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
 dnl the Free Software Foundation, version 2.
 dnl
 dnl This program is distributed in the hope that it will be useful,
 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 dnl GNU General Public License for more details.
 dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with this program; if not, write to the Free Software Foundation,
 dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 dnl
 AC_INIT([Red Hat elfutils],[0.97],[http://bugzilla.redhat.com/bugzilla/],
 	[elfutils])

 AC_CONFIG_AUX_DIR([config])
 AC_CONFIG_FILES([config/Makefile])

 AC_COPYRIGHT([Copyright (C) 1996-2003, 2004 Red Hat, Inc.])
 AC_REVISION($Revision: 1.30 $)
 AC_PREREQ(2.59)			dnl Minimum Autoconf version required.

 AM_INIT_AUTOMAKE([gnits 1.7 dist-bzip2])

 AC_CONFIG_SRCDIR([libelf/libelf.h])
 AC_CONFIG_FILES([Makefile])
 AC_CONFIG_HEADERS([config.h])

 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_FILES([m4/Makefile])

 dnl The RPM spec file.  We substitute a few values in the file.
 AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in])


 AC_CANONICAL_HOST

 AC_ARG_ENABLE([tls],
 AS_HELP_STRING([--enable-tls], [enable use of thread local storage]),
 AC_DEFINE(USE_TLS))
 AH_TEMPLATE([USE_TLS], [Defined if thread local storage should be used.])

 dnl Add all the languages for which translations are available.
 ALL_LINGUAS=

 AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_GCC_TRADITIONAL
 AM_GNU_GETTEXT([external])
 AC_PROG_RANLIB
 AC_PROG_YACC
 AM_PROG_LEX

 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
 old_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -std=gnu99"
 AC_COMPILE_IFELSE([dnl
 int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }],
 		  ac_cv_c99=yes, ac_cv_c99=no)
 CFLAGS="$old_CFLAGS"])
 AS_IF([test "x$ac_cv_c99" != xyes],
       AC_MSG_ERROR([gcc with C99 support required]))

 LOCALEDIR=$datadir
 AC_SUBST(LOCALEDIR)
 AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR")
 AH_TEMPLATE([LOCALEDIR], [Directory to place translation files in.])

 DATADIRNAME=$datadir
 AC_SUBST(DATADIRNAME)

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

 dnl Enable the linker to be build as a native-only linker.  By default it
 dnl can handle all architectures but this comes at a cost.  A native
 dnl will be slightly faster, small, and has fewer dependencies.
 native_ld=no
 AC_ARG_ENABLE([generic],
 AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl
 if test "$enable_generic" = no; then
   case "$host_cpu" in
    i?86)
     AC_DEFINE(NATIVE_ELF, 32)
     native_ld=yes
     base_cpu=i386
     ;;
    *)
     AC_MSG_ERROR([no machine-specific linker for this configuration available])
     ;;
   esac
 fi])
 AH_TEMPLATE([NATIVE_ELF],
 [Define to 32 or 64 if a specific implementation is wanted.])
 AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes)
 dnl The automake generated Makefile cannot deal with macros in the name
 dnl of files if at any time there is no such file, even if the filename
 dnl would not be used.
 AS_IF([test -z "$base_cpu"], [base_cpu=none])
 AC_SUBST(base_cpu)

 dnl Enable debugging via mudflap.  This option will cause most libraries
 dnl to be built as archives which are statically linked into the applications.
 dnl All code, as far as possible, is compiled instrumented to catch all
 dnl the bugs valgrind is able to catch.
 use_mudflap=no
 AC_ARG_ENABLE([mudflap],
 AS_HELP_STRING([--enable-mudflap],
 [build binaries with mudflap instrumentation]), [dnl
 if test "x$enable_mudflap" = xyes; then
   # Check whether the compiler support -fmudflap.
   old_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -fmudflap"
   AC_TRY_COMPILE([], [], use_mudflap=yes, use_mudflap=fail)
   CFLAGS="$old_CFLAGS"
 fi])
 if test "$use_mudflap" = fail; then
   AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option])
 fi
 AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes)


 dnl The directories with content.

 dnl Documentation.
 AC_CONFIG_FILES([doc/Makefile])

 dnl Support library.
 AC_CONFIG_FILES([lib/Makefile])

 dnl ELF library.
 AC_CONFIG_FILES([libelf/Makefile libelf-po/Makefile.in])

 dnl Higher-level ELF support library.
 AC_CONFIG_FILES([libebl/Makefile])

 dnl DWARF library.
 AC_CONFIG_FILES([libdw/Makefile])

 dnl CPU handling library.
 AC_CONFIG_FILES([libcpu/Makefile])

 dnl Assembler library.
 AC_CONFIG_FILES([libasm/Makefile])

 dnl Tools.
 AC_CONFIG_FILES([src/Makefile po/Makefile.in])

 dnl Test suite.
 AC_CONFIG_FILES([tests/Makefile])


 dnl Test of the config.h file.  We hide all kinds of configuration magic
 dnl in there.
 AH_BOTTOM([
 /* Eventually we will allow multi-threaded applications to use the
    libraries.  Therefore we will add the necessary locking although
    the macros used expand to nothing for now.  */
 #define lock_lock(lock) ((void) (lock))
 #define rwlock_define(class,name) class int name
 #define rwlock_init(lock) ((void) (lock))
 #define rwlock_fini(lock) ((void) (lock))
 #define rwlock_rdlock(lock) ((void) (lock))
 #define rwlock_wrlock(lock) ((void) (lock))
 #define rwlock_unlock(lock) ((void) (lock))
 #define tls_key_t void *
 #define key_create(keyp, freefct) (1)
 #define getspecific(key) key
 #define setspecific(key,val) key = val
 #define once_define(class,name) class int name
 #define once_execute(name,fct) \
   do {									      \
     if (name == 0)							      \
       fct ();								      \
     name = 1;								      \
   } while (0)

 /* gettext helper macro.  */
 #define N_(Str) Str

 /* Compiler-specific definitions.  */
 #define strong_alias(name, aliasname) \
   extern __typeof (name) aliasname __attribute__ ((alias (#name)));

 #ifdef __i386__
 # define internal_function_def __attribute__ ((regparm (3), stdcall))
 #else
 # define internal_function_def /* nothing */
 #endif

 # define internal_function \
   internal_function_def __attribute__ ((visibility ("internal")))
 # define internal_strong_alias(name, aliasname) \
   extern __typeof (name) aliasname __attribute__ ((alias (#name), visibility ("internal"))) internal_function_def;

 #define attribute_hidden \
   __attribute__ ((visibility ("hidden")))

 /* Define ALLOW_UNALIGNED if the architecture allows operations on
    unaligned memory locations.  */
 #if defined __i386__ || defined __alpha__ || defined __x86_64__ || defined __ia64__
 # define ALLOW_UNALIGNED	1
 #else
 # define ALLOW_UNALIGNED	0
 #endif

 #define unlikely(expr) __builtin_expect (expr, 0)
 #define likely(expr) __builtin_expect (expr, 1)

 #define obstack_calloc(ob, size) \
   ({ size_t _s = (size); memset (obstack_alloc (ob, _s), '\0', _s); })
 #define obstack_strdup(ob, str) \
   ({ const char *_s = (str); obstack_copy0 (ob, _s, strlen (_s)); })
 #define obstack_strndup(ob, str, n) \
   ({ const char *_s = (str); obstack_copy0 (ob, _s, strnlen (_s, n)); })

 #if __STDC_VERSION__ >= 199901L
 # define flexarr_size /* empty */
 #else
 # define flexarr_size 0
 #endif

 /* Calling conventions.  */
 #ifdef __i386__
 # define CALLING_CONVENTION regparm (3), stdcall
 # define AND_CALLING_CONVENTION , regparm (3), stdcall
 #else
 # define CALLING_CONVENTION
 # define AND_CALLING_CONVENTION
 #endif

 /* Avoid PLT entries.  */
 #ifdef PIC
 # define INTUSE(name) _INTUSE(name)
 # define _INTUSE(name) __##name##_internal
 # define INTDEF(name) _INTDEF(name)
 # define _INTDEF(name) \
   extern __typeof__ (name) __##name##_internal __attribute__ ((alias (#name)));
 #else
 # define INTUSE(name) name
 # define INTDEF(name) /* empty */
 #endif
 ])

 AC_OUTPUT
	dnl Process this file with autoconf to produce a configure script. --m4--
	dnl Configure input file for elfutils.
	dnl
	dnl Copyright (C) 1996-2002, 2003, 2004 Red Hat, Inc.
	dnl
	dnl This program is free software; you can redistribute it and/or modify
	dnl it under the terms of the GNU General Public License as published by
	dnl the Free Software Foundation, version 2.
	dnl
	dnl This program is distributed in the hope that it will be useful,
	dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
	dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	dnl GNU General Public License for more details.
	dnl
	dnl You should have received a copy of the GNU General Public License
	dnl along with this program; if not, write to the Free Software Foundation,
	dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	dnl
	AC_INIT([Red Hat elfutils],[0.97],[http://bugzilla.redhat.com/bugzilla/],
	[elfutils])

	AC_CONFIG_AUX_DIR([config])
	AC_CONFIG_FILES([config/Makefile])

	AC_COPYRIGHT([Copyright (C) 1996-2003, 2004 Red Hat, Inc.])
	AC_REVISION($Revision: 1.30 $)
	AC_PREREQ(2.59) dnl Minimum Autoconf version required.

	AM_INIT_AUTOMAKE([gnits 1.7 dist-bzip2])

	AC_CONFIG_SRCDIR([libelf/libelf.h])
	AC_CONFIG_FILES([Makefile])
	AC_CONFIG_HEADERS([config.h])

	AC_CONFIG_MACRO_DIR([m4])
	AC_CONFIG_FILES([m4/Makefile])

	dnl The RPM spec file. We substitute a few values in the file.
	AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in])


	AC_CANONICAL_HOST

	AC_ARG_ENABLE([tls],
	AS_HELP_STRING([--enable-tls], [enable use of thread local storage]),
	AC_DEFINE(USE_TLS))
	AH_TEMPLATE([USE_TLS], [Defined if thread local storage should be used.])

	dnl Add all the languages for which translations are available.
	ALL_LINGUAS=

	AC_PROG_CC
	AC_PROG_CPP
	AC_PROG_GCC_TRADITIONAL
	AM_GNU_GETTEXT([external])
	AC_PROG_RANLIB
	AC_PROG_YACC
	AM_PROG_LEX

	AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
	old_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS -std=gnu99"
	AC_COMPILE_IFELSE([dnl
	int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }],
	ac_cv_c99=yes, ac_cv_c99=no)
	CFLAGS="$old_CFLAGS"])
	AS_IF([test "x$ac_cv_c99" != xyes],
	AC_MSG_ERROR([gcc with C99 support required]))

	LOCALEDIR=$datadir
	AC_SUBST(LOCALEDIR)
	AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR")
	AH_TEMPLATE([LOCALEDIR], [Directory to place translation files in.])

	DATADIRNAME=$datadir
	AC_SUBST(DATADIRNAME)

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

	dnl Enable the linker to be build as a native-only linker. By default it
	dnl can handle all architectures but this comes at a cost. A native
	dnl will be slightly faster, small, and has fewer dependencies.
	native_ld=no
	AC_ARG_ENABLE([generic],
	AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl
	if test "$enable_generic" = no; then
	case "$host_cpu" in
	i?86)
	AC_DEFINE(NATIVE_ELF, 32)
	native_ld=yes
	base_cpu=i386
	;;
	*)
	AC_MSG_ERROR([no machine-specific linker for this configuration available])
	;;
	esac
	fi])
	AH_TEMPLATE([NATIVE_ELF],
	[Define to 32 or 64 if a specific implementation is wanted.])
	AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes)
	dnl The automake generated Makefile cannot deal with macros in the name
	dnl of files if at any time there is no such file, even if the filename
	dnl would not be used.
	AS_IF([test -z "$base_cpu"], [base_cpu=none])
	AC_SUBST(base_cpu)

	dnl Enable debugging via mudflap. This option will cause most libraries
	dnl to be built as archives which are statically linked into the applications.
	dnl All code, as far as possible, is compiled instrumented to catch all
	dnl the bugs valgrind is able to catch.
	use_mudflap=no
	AC_ARG_ENABLE([mudflap],
	AS_HELP_STRING([--enable-mudflap],
	[build binaries with mudflap instrumentation]), [dnl
	if test "x$enable_mudflap" = xyes; then
	# Check whether the compiler support -fmudflap.
	old_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS -fmudflap"
	AC_TRY_COMPILE([], [], use_mudflap=yes, use_mudflap=fail)
	CFLAGS="$old_CFLAGS"
	fi])
	if test "$use_mudflap" = fail; then
	AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option])
	fi
	AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes)


	dnl The directories with content.

	dnl Documentation.
	AC_CONFIG_FILES([doc/Makefile])

	dnl Support library.
	AC_CONFIG_FILES([lib/Makefile])

	dnl ELF library.
	AC_CONFIG_FILES([libelf/Makefile libelf-po/Makefile.in])

	dnl Higher-level ELF support library.
	AC_CONFIG_FILES([libebl/Makefile])

	dnl DWARF library.
	AC_CONFIG_FILES([libdw/Makefile])

	dnl CPU handling library.
	AC_CONFIG_FILES([libcpu/Makefile])

	dnl Assembler library.
	AC_CONFIG_FILES([libasm/Makefile])

	dnl Tools.
	AC_CONFIG_FILES([src/Makefile po/Makefile.in])

	dnl Test suite.
	AC_CONFIG_FILES([tests/Makefile])


	dnl Test of the config.h file. We hide all kinds of configuration magic
	dnl in there.
	AH_BOTTOM([
	/* Eventually we will allow multi-threaded applications to use the
	libraries. Therefore we will add the necessary locking although
	the macros used expand to nothing for now. */
	#define lock_lock(lock) ((void) (lock))
	#define rwlock_define(class,name) class int name
	#define rwlock_init(lock) ((void) (lock))
	#define rwlock_fini(lock) ((void) (lock))
	#define rwlock_rdlock(lock) ((void) (lock))
	#define rwlock_wrlock(lock) ((void) (lock))
	#define rwlock_unlock(lock) ((void) (lock))
	#define tls_key_t void *
	#define key_create(keyp, freefct) (1)
	#define getspecific(key) key
	#define setspecific(key,val) key = val
	#define once_define(class,name) class int name
	#define once_execute(name,fct) \
	do { \
	if (name == 0) \
	fct (); \
	name = 1; \
	} while (0)

	/* gettext helper macro. */
	#define N_(Str) Str

	/* Compiler-specific definitions. */
	#define strong_alias(name, aliasname) \
	extern __typeof (name) aliasname __attribute__ ((alias (#name)));

	#ifdef __i386__
	# define internal_function_def __attribute__ ((regparm (3), stdcall))
	#else
	# define internal_function_def /* nothing */
	#endif

	# define internal_function \
	internal_function_def __attribute__ ((visibility ("internal")))
	# define internal_strong_alias(name, aliasname) \
	extern __typeof (name) aliasname __attribute__ ((alias (#name), visibility ("internal"))) internal_function_def;

	#define attribute_hidden \
	__attribute__ ((visibility ("hidden")))

	/* Define ALLOW_UNALIGNED if the architecture allows operations on
	unaligned memory locations. */
	#if defined __i386__ \|\| defined __alpha__ \|\| defined __x86_64__ \|\| defined __ia64__
	# define ALLOW_UNALIGNED 1
	#else
	# define ALLOW_UNALIGNED 0
	#endif

	#define unlikely(expr) __builtin_expect (expr, 0)
	#define likely(expr) __builtin_expect (expr, 1)

	#define obstack_calloc(ob, size) \
	({ size_t _s = (size); memset (obstack_alloc (ob, _s), '\0', _s); })
	#define obstack_strdup(ob, str) \
	({ const char *_s = (str); obstack_copy0 (ob, _s, strlen (_s)); })
	#define obstack_strndup(ob, str, n) \
	({ const char *_s = (str); obstack_copy0 (ob, _s, strnlen (_s, n)); })

	#if __STDC_VERSION__ >= 199901L
	# define flexarr_size /* empty */
	#else
	# define flexarr_size 0
	#endif

	/* Calling conventions. */
	#ifdef __i386__
	# define CALLING_CONVENTION regparm (3), stdcall
	# define AND_CALLING_CONVENTION , regparm (3), stdcall
	#else
	# define CALLING_CONVENTION
	# define AND_CALLING_CONVENTION
	#endif

	/* Avoid PLT entries. */
	#ifdef PIC
	# define INTUSE(name) _INTUSE(name)
	# define _INTUSE(name) __##name##_internal
	# define INTDEF(name) _INTDEF(name)
	# define _INTDEF(name) \
	extern __typeof__ (name) __##name##_internal __attribute__ ((alias (#name)));
	#else
	# define INTUSE(name) name
	# define INTDEF(name) /* empty */
	#endif
	])

	AC_OUTPUT