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[GNUnet-SVN] r4665 - Extractor/m4
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From: |
gnunet |
|
Subject: |
[GNUnet-SVN] r4665 - Extractor/m4 |
|
Date: |
Sun, 11 Mar 2007 18:01:04 -0600 (MDT) |
Author: grothoff
Date: 2007-03-11 18:01:03 -0600 (Sun, 11 Mar 2007)
New Revision: 4665
Added:
Extractor/m4/glibc2.m4
Extractor/m4/intl.m4
Extractor/m4/intldir.m4
Extractor/m4/lock.m4
Extractor/m4/visibility.m4
Log:
release
Added: Extractor/m4/glibc2.m4
===================================================================
--- Extractor/m4/glibc2.m4 (rev 0)
+++ Extractor/m4/glibc2.m4 2007-03-12 00:01:03 UTC (rev 4665)
@@ -0,0 +1,30 @@
+# glibc2.m4 serial 1
+dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# Test for the GNU C Library, version 2.0 or newer.
+# From Bruno Haible.
+
+AC_DEFUN([gt_GLIBC2],
+ [
+ AC_CACHE_CHECK(whether we are using the GNU C Library 2 or newer,
+ ac_cv_gnu_library_2,
+ [AC_EGREP_CPP([Lucky GNU user],
+ [
+#include <features.h>
+#ifdef __GNU_LIBRARY__
+ #if (__GLIBC__ >= 2)
+ Lucky GNU user
+ #endif
+#endif
+ ],
+ ac_cv_gnu_library_2=yes,
+ ac_cv_gnu_library_2=no)
+ ]
+ )
+ AC_SUBST(GLIBC2)
+ GLIBC2="$ac_cv_gnu_library_2"
+ ]
+)
Added: Extractor/m4/intl.m4
===================================================================
--- Extractor/m4/intl.m4 (rev 0)
+++ Extractor/m4/intl.m4 2007-03-12 00:01:03 UTC (rev 4665)
@@ -0,0 +1,259 @@
+# intl.m4 serial 3 (gettext-0.16)
+dnl Copyright (C) 1995-2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Authors:
+dnl Ulrich Drepper <address@hidden>, 1995-2000.
+dnl Bruno Haible <address@hidden>, 2000-2006.
+
+AC_PREREQ(2.52)
+
+dnl Checks for all prerequisites of the intl subdirectory,
+dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
+dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
+AC_DEFUN([AM_INTL_SUBDIR],
+[
+ AC_REQUIRE([AC_PROG_INSTALL])dnl
+ AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
+ AC_REQUIRE([AC_PROG_CC])dnl
+ AC_REQUIRE([AC_CANONICAL_HOST])dnl
+ AC_REQUIRE([gt_GLIBC2])dnl
+ AC_REQUIRE([AC_PROG_RANLIB])dnl
+ AC_REQUIRE([gl_VISIBILITY])dnl
+ AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl
+ AC_REQUIRE([AC_TYPE_LONG_LONG_INT])dnl
+ AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
+ AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
+ AC_REQUIRE([gt_TYPE_WINT_T])dnl
+ AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
+ AC_REQUIRE([gt_TYPE_INTMAX_T])
+ AC_REQUIRE([gt_PRINTF_POSIX])
+ AC_REQUIRE([gl_GLIBC21])dnl
+ AC_REQUIRE([gl_XSIZE])dnl
+ AC_REQUIRE([gt_INTL_MACOSX])dnl
+
+ AC_CHECK_TYPE([ptrdiff_t], ,
+ [AC_DEFINE([ptrdiff_t], [long],
+ [Define as the type of the result of subtracting two pointers, if the
system doesn't define it.])
+ ])
+ AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
+ AC_CHECK_FUNCS([asprintf fwprintf putenv setenv setlocale snprintf wcslen])
+
+ dnl Use the _snprintf function only if it is declared (because on NetBSD it
+ dnl is defined as a weak alias of snprintf; we prefer to use the latter).
+ gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
+ gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])
+
+ dnl Use the *_unlocked functions only if they are declared.
+ dnl (because some of them were defined without being declared in Solaris
+ dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
+ dnl on Solaris 2.5.1 to run on Solaris 2.6).
+ dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
+ gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])
+
+ case $gt_cv_func_printf_posix in
+ *yes) HAVE_POSIX_PRINTF=1 ;;
+ *) HAVE_POSIX_PRINTF=0 ;;
+ esac
+ AC_SUBST([HAVE_POSIX_PRINTF])
+ if test "$ac_cv_func_asprintf" = yes; then
+ HAVE_ASPRINTF=1
+ else
+ HAVE_ASPRINTF=0
+ fi
+ AC_SUBST([HAVE_ASPRINTF])
+ if test "$ac_cv_func_snprintf" = yes; then
+ HAVE_SNPRINTF=1
+ else
+ HAVE_SNPRINTF=0
+ fi
+ AC_SUBST([HAVE_SNPRINTF])
+ if test "$ac_cv_func_wprintf" = yes; then
+ HAVE_WPRINTF=1
+ else
+ HAVE_WPRINTF=0
+ fi
+ AC_SUBST([HAVE_WPRINTF])
+
+ AM_LANGINFO_CODESET
+ gt_LC_MESSAGES
+
+ dnl Compilation on mingw and Cygwin needs special Makefile rules, because
+ dnl 1. when we install a shared library, we must arrange to export
+ dnl auxiliary pointer variables for every exported variable,
+ dnl 2. when we install a shared library and a static library simultaneously,
+ dnl the include file specifies __declspec(dllimport) and therefore we
+ dnl must arrange to define the auxiliary pointer variables for the
+ dnl exported variables _also_ in the static library.
+ if test "$enable_shared" = yes; then
+ case "$host_os" in
+ cygwin*) is_woe32dll=yes ;;
+ *) is_woe32dll=no ;;
+ esac
+ else
+ is_woe32dll=no
+ fi
+ WOE32DLL=$is_woe32dll
+ AC_SUBST([WOE32DLL])
+
+ dnl Rename some macros and functions used for locking.
+ AH_BOTTOM([
+#define __libc_lock_t gl_lock_t
+#define __libc_lock_define gl_lock_define
+#define __libc_lock_define_initialized gl_lock_define_initialized
+#define __libc_lock_init gl_lock_init
+#define __libc_lock_lock gl_lock_lock
+#define __libc_lock_unlock gl_lock_unlock
+#define __libc_lock_recursive_t gl_recursive_lock_t
+#define __libc_lock_define_recursive gl_recursive_lock_define
+#define __libc_lock_define_initialized_recursive
gl_recursive_lock_define_initialized
+#define __libc_lock_init_recursive gl_recursive_lock_init
+#define __libc_lock_lock_recursive gl_recursive_lock_lock
+#define __libc_lock_unlock_recursive gl_recursive_lock_unlock
+#define glthread_in_use libintl_thread_in_use
+#define glthread_lock_init libintl_lock_init
+#define glthread_lock_lock libintl_lock_lock
+#define glthread_lock_unlock libintl_lock_unlock
+#define glthread_lock_destroy libintl_lock_destroy
+#define glthread_rwlock_init libintl_rwlock_init
+#define glthread_rwlock_rdlock libintl_rwlock_rdlock
+#define glthread_rwlock_wrlock libintl_rwlock_wrlock
+#define glthread_rwlock_unlock libintl_rwlock_unlock
+#define glthread_rwlock_destroy libintl_rwlock_destroy
+#define glthread_recursive_lock_init libintl_recursive_lock_init
+#define glthread_recursive_lock_lock libintl_recursive_lock_lock
+#define glthread_recursive_lock_unlock libintl_recursive_lock_unlock
+#define glthread_recursive_lock_destroy libintl_recursive_lock_destroy
+#define glthread_once libintl_once
+#define glthread_once_call libintl_once_call
+#define glthread_once_singlethreaded libintl_once_singlethreaded
+])
+])
+
+
+dnl Checks for the core files of the intl subdirectory:
+dnl dcigettext.c
+dnl eval-plural.h
+dnl explodename.c
+dnl finddomain.c
+dnl gettextP.h
+dnl gmo.h
+dnl hash-string.h hash-string.c
+dnl l10nflist.c
+dnl libgnuintl.h.in (except the *printf stuff)
+dnl loadinfo.h
+dnl loadmsgcat.c
+dnl localealias.c
+dnl log.c
+dnl plural-exp.h plural-exp.c
+dnl plural.y
+dnl Used by libglocale.
+AC_DEFUN([gt_INTL_SUBDIR_CORE],
+[
+ AC_REQUIRE([AC_C_INLINE])dnl
+ AC_REQUIRE([AC_TYPE_SIZE_T])dnl
+ AC_REQUIRE([gl_AC_HEADER_STDINT_H])
+ AC_REQUIRE([AC_FUNC_ALLOCA])dnl
+ AC_REQUIRE([AC_FUNC_MMAP])dnl
+ AC_REQUIRE([gt_INTDIV0])dnl
+ AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
+ AC_REQUIRE([gt_INTTYPES_PRI])dnl
+ AC_REQUIRE([gl_LOCK])dnl
+
+ AC_TRY_LINK(
+ [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1;
}],
+ [],
+ [AC_DEFINE([HAVE_BUILTIN_EXPECT], 1,
+ [Define to 1 if the compiler understands __builtin_expect.])])
+
+ AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
+ AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
+ stpcpy strcasecmp strdup strtoul tsearch argz_count argz_stringify \
+ argz_next __fsetlocking])
+
+ dnl Use the *_unlocked functions only if they are declared.
+ dnl (because some of them were defined without being declared in Solaris
+ dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
+ dnl on Solaris 2.5.1 to run on Solaris 2.6).
+ dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
+ gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
+ gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
+
+ AM_ICONV
+
+ dnl glibc >= 2.4 has a NL_LOCALE_NAME macro when _GNU_SOURCE is defined,
+ dnl and a _NL_LOCALE_NAME macro always.
+ AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
+ [AC_TRY_LINK([#include <langinfo.h>
+#include <locale.h>],
+ [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));],
+ gt_cv_nl_locale_name=yes,
+ gt_cv_nl_locale_name=no)
+ ])
+ if test $gt_cv_nl_locale_name = yes; then
+ AC_DEFINE(HAVE_NL_LOCALE_NAME, 1,
+ [Define if you have <langinfo.h> and it defines the NL_LOCALE_NAME macro
if _GNU_SOURCE is defined.])
+ fi
+
+ dnl intl/plural.c is generated from intl/plural.y. It requires bison,
+ dnl because plural.y uses bison specific features. It requires at least
+ dnl bison-1.26 because earlier versions generate a plural.c that doesn't
+ dnl compile.
+ dnl bison is only needed for the maintainer (who touches plural.y). But in
+ dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
+ dnl the rule in general Makefile. Now, some people carelessly touch the
+ dnl files or have a broken "make" program, hence the plural.c rule will
+ dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
+ dnl present or too old.
+ AC_CHECK_PROGS([INTLBISON], [bison])
+ if test -z "$INTLBISON"; then
+ ac_verc_fail=yes
+ else
+ dnl Found it, now check the version.
+ AC_MSG_CHECKING([version of bison])
+changequote(<<,>>)dnl
+ ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.*
\([0-9]*\.[0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
+changequote([,])dnl
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
+ esac
+ AC_MSG_RESULT([$ac_prog_version])
+ fi
+ if test $ac_verc_fail = yes; then
+ INTLBISON=:
+ fi
+])
+
+
+dnl gt_CHECK_DECL(FUNC, INCLUDES)
+dnl Check whether a function is declared.
+AC_DEFUN([gt_CHECK_DECL],
+[
+ AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
+ [AC_TRY_COMPILE([$2], [
+#ifndef $1
+ char *p = (char *) $1;
+#endif
+], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
+ if test $ac_cv_have_decl_$1 = yes; then
+ gt_value=1
+ else
+ gt_value=0
+ fi
+ AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
+ [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
+])
Added: Extractor/m4/intldir.m4
===================================================================
--- Extractor/m4/intldir.m4 (rev 0)
+++ Extractor/m4/intldir.m4 2007-03-12 00:01:03 UTC (rev 4665)
@@ -0,0 +1,19 @@
+# intldir.m4 serial 1 (gettext-0.16)
+dnl Copyright (C) 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+AC_PREREQ(2.52)
+
+dnl Tells the AM_GNU_GETTEXT macro to consider an intl/ directory.
+AC_DEFUN([AM_GNU_GETTEXT_INTL_SUBDIR], [])
Added: Extractor/m4/lock.m4
===================================================================
--- Extractor/m4/lock.m4 (rev 0)
+++ Extractor/m4/lock.m4 2007-03-12 00:01:03 UTC (rev 4665)
@@ -0,0 +1,311 @@
+# lock.m4 serial 6 (gettext-0.16)
+dnl Copyright (C) 2005-2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+dnl Tests for a multithreading library to be used.
+dnl Defines at most one of the macros USE_POSIX_THREADS, USE_SOLARIS_THREADS,
+dnl USE_PTH_THREADS, USE_WIN32_THREADS
+dnl Sets the variables LIBTHREAD and LTLIBTHREAD to the linker options for use
+dnl in a Makefile (LIBTHREAD for use without libtool, LTLIBTHREAD for use with
+dnl libtool).
+dnl Sets the variables LIBMULTITHREAD and LTLIBMULTITHREAD similarly, for
+dnl programs that really need multithread functionality. The difference
+dnl between LIBTHREAD and LIBMULTITHREAD is that on platforms supporting weak
+dnl symbols, typically LIBTHREAD="" whereas LIBMULTITHREAD="-lpthread".
+dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for
+dnl multithread-safe programs.
+
+AC_DEFUN([gl_LOCK_EARLY],
+[
+ AC_REQUIRE([gl_LOCK_EARLY_BODY])
+])
+
+dnl The guts of gl_LOCK_EARLY. Needs to be expanded only once.
+
+AC_DEFUN([gl_LOCK_EARLY_BODY],
+[
+ dnl Ordering constraints: This macro modifies CPPFLAGS in a way that
+ dnl influences the result of the autoconf tests that test for *_unlocked
+ dnl declarations, on AIX 5 at least. Therefore it must come early.
+ AC_BEFORE([$0], [gl_FUNC_GLIBC_UNLOCKED_IO])dnl
+ AC_BEFORE([$0], [gl_ARGP])dnl
+
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([AC_GNU_SOURCE]) dnl needed for pthread_rwlock_t on glibc systems
+ dnl Check for multithreading.
+ AC_ARG_ENABLE(threads,
+AC_HELP_STRING([--enable-threads={posix|solaris|pth|win32}], [specify
multithreading API])
+AC_HELP_STRING([--disable-threads], [build without multithread safety]),
+ [gl_use_threads=$enableval],
+ [case "$host_os" in
+ dnl Disable multithreading by default on OSF/1, because it interferes
+ dnl with fork()/exec(): When msgexec is linked with -lpthread, its child
+ dnl process gets an endless segmentation fault inside execvp().
+ osf*) gl_use_threads=no ;;
+ *) gl_use_threads=yes ;;
+ esac
+ ])
+ if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then
+ # For using <pthread.h>:
+ case "$host_os" in
+ osf*)
+ # On OSF/1, the compiler needs the flag -D_REENTRANT so that it
+ # groks <pthread.h>. cc also understands the flag -pthread, but
+ # we don't use it because 1. gcc-2.95 doesn't understand -pthread,
+ # 2. putting a flag into CPPFLAGS that has an effect on the linker
+ # causes the AC_TRY_LINK test below to succeed unexpectedly,
+ # leading to wrong values of LIBTHREAD and LTLIBTHREAD.
+ CPPFLAGS="$CPPFLAGS -D_REENTRANT"
+ ;;
+ esac
+ # Some systems optimize for single-threaded programs by default, and
+ # need special flags to disable these optimizations. For example, the
+ # definition of 'errno' in <errno.h>.
+ case "$host_os" in
+ aix* | freebsd*) CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE" ;;
+ solaris*) CPPFLAGS="$CPPFLAGS -D_REENTRANT" ;;
+ esac
+ fi
+])
+
+dnl The guts of gl_LOCK. Needs to be expanded only once.
+
+AC_DEFUN([gl_LOCK_BODY],
+[
+ AC_REQUIRE([gl_LOCK_EARLY_BODY])
+ gl_threads_api=none
+ LIBTHREAD=
+ LTLIBTHREAD=
+ LIBMULTITHREAD=
+ LTLIBMULTITHREAD=
+ if test "$gl_use_threads" != no; then
+ dnl Check whether the compiler and linker support weak declarations.
+ AC_MSG_CHECKING([whether imported symbols can be declared weak])
+ gl_have_weak=no
+ AC_TRY_LINK([extern void xyzzy ();
+#pragma weak xyzzy], [xyzzy();], [gl_have_weak=yes])
+ AC_MSG_RESULT([$gl_have_weak])
+ if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then
+ # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that
+ # it groks <pthread.h>. It's added above, in gl_LOCK_EARLY_BODY.
+ AC_CHECK_HEADER(pthread.h, gl_have_pthread_h=yes, gl_have_pthread_h=no)
+ if test "$gl_have_pthread_h" = yes; then
+ # Other possible tests:
+ # -lpthreads (FSU threads, PCthreads)
+ # -lgthreads
+ gl_have_pthread=
+ # Test whether both pthread_mutex_lock and pthread_mutexattr_init exist
+ # in libc. IRIX 6.5 has the first one in both libc and libpthread, but
+ # the second one only in libpthread, and lock.c needs it.
+ AC_TRY_LINK([#include <pthread.h>],
+ [pthread_mutex_lock((pthread_mutex_t*)0);
+ pthread_mutexattr_init((pthread_mutexattr_t*)0);],
+ [gl_have_pthread=yes])
+ # Test for libpthread by looking for pthread_kill. (Not pthread_self,
+ # since it is defined as a macro on OSF/1.)
+ if test -n "$gl_have_pthread"; then
+ # The program links fine without libpthread. But it may actually
+ # need to link with libpthread in order to create multiple threads.
+ AC_CHECK_LIB(pthread, pthread_kill,
+ [LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread
+ # On Solaris and HP-UX, most pthread functions exist also in libc.
+ # Therefore pthread_in_use() needs to actually try to create a
+ # thread: pthread_create from libc will fail, whereas
+ # pthread_create will actually create a thread.
+ case "$host_os" in
+ solaris* | hpux*)
+ AC_DEFINE([PTHREAD_IN_USE_DETECTION_HARD], 1,
+ [Define if the pthread_in_use() detection is hard.])
+ esac
+ ])
+ else
+ # Some library is needed. Try libpthread and libc_r.
+ AC_CHECK_LIB(pthread, pthread_kill,
+ [gl_have_pthread=yes
+ LIBTHREAD=-lpthread LTLIBTHREAD=-lpthread
+ LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread])
+ if test -z "$gl_have_pthread"; then
+ # For FreeBSD 4.
+ AC_CHECK_LIB(c_r, pthread_kill,
+ [gl_have_pthread=yes
+ LIBTHREAD=-lc_r LTLIBTHREAD=-lc_r
+ LIBMULTITHREAD=-lc_r LTLIBMULTITHREAD=-lc_r])
+ fi
+ fi
+ if test -n "$gl_have_pthread"; then
+ gl_threads_api=posix
+ AC_DEFINE([USE_POSIX_THREADS], 1,
+ [Define if the POSIX multithreading library can be used.])
+ if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then
+ if test $gl_have_weak = yes; then
+ AC_DEFINE([USE_POSIX_THREADS_WEAK], 1,
+ [Define if references to the POSIX multithreading library
should be made weak.])
+ LIBTHREAD=
+ LTLIBTHREAD=
+ fi
+ fi
+ # OSF/1 4.0 and MacOS X 10.1 lack the pthread_rwlock_t type and the
+ # pthread_rwlock_* functions.
+ AC_CHECK_TYPE([pthread_rwlock_t],
+ [AC_DEFINE([HAVE_PTHREAD_RWLOCK], 1,
+ [Define if the POSIX multithreading library has read/write
locks.])],
+ [],
+ [#include <pthread.h>])
+ # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro.
+ AC_TRY_COMPILE([#include <pthread.h>],
+ [#if __FreeBSD__ == 4
+error "No, in FreeBSD 4.0 recursive mutexes actually don't work."
+#else
+int x = (int)PTHREAD_MUTEX_RECURSIVE;
+return !x;
+#endif],
+ [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], 1,
+ [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])])
+ fi
+ fi
+ fi
+ if test -z "$gl_have_pthread"; then
+ if test "$gl_use_threads" = yes || test "$gl_use_threads" = solaris; then
+ gl_have_solaristhread=
+ gl_save_LIBS="$LIBS"
+ LIBS="$LIBS -lthread"
+ AC_TRY_LINK([#include <thread.h>
+#include <synch.h>],
+ [thr_self();],
+ [gl_have_solaristhread=yes])
+ LIBS="$gl_save_LIBS"
+ if test -n "$gl_have_solaristhread"; then
+ gl_threads_api=solaris
+ LIBTHREAD=-lthread
+ LTLIBTHREAD=-lthread
+ LIBMULTITHREAD="$LIBTHREAD"
+ LTLIBMULTITHREAD="$LTLIBTHREAD"
+ AC_DEFINE([USE_SOLARIS_THREADS], 1,
+ [Define if the old Solaris multithreading library can be used.])
+ if test $gl_have_weak = yes; then
+ AC_DEFINE([USE_SOLARIS_THREADS_WEAK], 1,
+ [Define if references to the old Solaris multithreading library
should be made weak.])
+ LIBTHREAD=
+ LTLIBTHREAD=
+ fi
+ fi
+ fi
+ fi
+ if test "$gl_use_threads" = pth; then
+ gl_save_CPPFLAGS="$CPPFLAGS"
+ AC_LIB_LINKFLAGS(pth)
+ gl_have_pth=
+ gl_save_LIBS="$LIBS"
+ LIBS="$LIBS -lpth"
+ AC_TRY_LINK([#include <pth.h>], [pth_self();], gl_have_pth=yes)
+ LIBS="$gl_save_LIBS"
+ if test -n "$gl_have_pth"; then
+ gl_threads_api=pth
+ LIBTHREAD="$LIBPTH"
+ LTLIBTHREAD="$LTLIBPTH"
+ LIBMULTITHREAD="$LIBTHREAD"
+ LTLIBMULTITHREAD="$LTLIBTHREAD"
+ AC_DEFINE([USE_PTH_THREADS], 1,
+ [Define if the GNU Pth multithreading library can be used.])
+ if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then
+ if test $gl_have_weak = yes; then
+ AC_DEFINE([USE_PTH_THREADS_WEAK], 1,
+ [Define if references to the GNU Pth multithreading library
should be made weak.])
+ LIBTHREAD=
+ LTLIBTHREAD=
+ fi
+ fi
+ else
+ CPPFLAGS="$gl_save_CPPFLAGS"
+ fi
+ fi
+ if test -z "$gl_have_pthread"; then
+ if test "$gl_use_threads" = yes || test "$gl_use_threads" = win32; then
+ if { case "$host_os" in
+ mingw*) true;;
+ *) false;;
+ esac
+ }; then
+ gl_threads_api=win32
+ AC_DEFINE([USE_WIN32_THREADS], 1,
+ [Define if the Win32 multithreading API can be used.])
+ fi
+ fi
+ fi
+ fi
+ AC_MSG_CHECKING([for multithread API to use])
+ AC_MSG_RESULT([$gl_threads_api])
+ AC_SUBST(LIBTHREAD)
+ AC_SUBST(LTLIBTHREAD)
+ AC_SUBST(LIBMULTITHREAD)
+ AC_SUBST(LTLIBMULTITHREAD)
+])
+
+AC_DEFUN([gl_LOCK],
+[
+ AC_REQUIRE([gl_LOCK_EARLY])
+ AC_REQUIRE([gl_LOCK_BODY])
+ gl_PREREQ_LOCK
+])
+
+# Prerequisites of lib/lock.c.
+AC_DEFUN([gl_PREREQ_LOCK], [
+ AC_REQUIRE([AC_C_INLINE])
+])
+
+dnl Survey of platforms:
+dnl
+dnl Platform Available Compiler Supports test-lock
+dnl flavours option weak result
+dnl --------------- --------- --------- -------- ---------
+dnl Linux 2.4/glibc posix -lpthread Y OK
+dnl
+dnl GNU Hurd/glibc posix
+dnl
+dnl FreeBSD 5.3 posix -lc_r Y
+dnl posix -lkse ? Y
+dnl posix -lpthread ? Y
+dnl posix -lthr Y
+dnl
+dnl FreeBSD 5.2 posix -lc_r Y
+dnl posix -lkse Y
+dnl posix -lthr Y
+dnl
+dnl FreeBSD 4.0,4.10 posix -lc_r Y OK
+dnl
+dnl NetBSD 1.6 --
+dnl
+dnl OpenBSD 3.4 posix -lpthread Y OK
+dnl
+dnl MacOS X 10.[123] posix -lpthread Y OK
+dnl
+dnl Solaris 7,8,9 posix -lpthread Y Sol 7,8: 0.0; Sol 9:
OK
+dnl solaris -lthread Y Sol 7,8: 0.0; Sol 9:
OK
+dnl
+dnl HP-UX 11 posix -lpthread N (cc) OK
+dnl Y (gcc)
+dnl
+dnl IRIX 6.5 posix -lpthread Y 0.5
+dnl
+dnl AIX 4.3,5.1 posix -lpthread N AIX 4: 0.5; AIX 5: OK
+dnl
+dnl OSF/1 4.0,5.1 posix -pthread (cc) N OK
+dnl -lpthread (gcc) Y
+dnl
+dnl Cygwin posix -lpthread Y OK
+dnl
+dnl Any of the above pth -lpth 0.0
+dnl
+dnl Mingw win32 N OK
+dnl
+dnl BeOS 5 --
+dnl
+dnl The test-lock result shows what happens if in test-lock.c EXPLICIT_YIELD is
+dnl turned off:
+dnl OK if all three tests terminate OK,
+dnl 0.5 if the first test terminates OK but the second one loops endlessly,
+dnl 0.0 if the first test already loops endlessly.
Added: Extractor/m4/visibility.m4
===================================================================
--- Extractor/m4/visibility.m4 (rev 0)
+++ Extractor/m4/visibility.m4 2007-03-12 00:01:03 UTC (rev 4665)
@@ -0,0 +1,52 @@
+# visibility.m4 serial 1 (gettext-0.15)
+dnl Copyright (C) 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+dnl Tests whether the compiler supports the command-line option
+dnl -fvisibility=hidden and the function and variable attributes
+dnl __attribute__((__visibility__("hidden"))) and
+dnl __attribute__((__visibility__("default"))).
+dnl Does *not* test for __visibility__("protected") - which has tricky
+dnl semantics (see the 'vismain' test in glibc) and does not exist e.g. on
+dnl MacOS X.
+dnl Does *not* test for __visibility__("internal") - which has processor
+dnl dependent semantics.
+dnl Does *not* test for #pragma GCC visibility push(hidden) - which is
+dnl "really only recommended for legacy code".
+dnl Set the variable CFLAG_VISIBILITY.
+dnl Defines and sets the variable HAVE_VISIBILITY.
+
+AC_DEFUN([gl_VISIBILITY],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ CFLAG_VISIBILITY=
+ HAVE_VISIBILITY=0
+ if test -n "$GCC"; then
+ AC_MSG_CHECKING([for simple visibility declarations])
+ AC_CACHE_VAL(gl_cv_cc_visibility, [
+ gl_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fvisibility=hidden"
+ AC_TRY_COMPILE(
+ [extern __attribute__((__visibility__("hidden"))) int hiddenvar;
+ extern __attribute__((__visibility__("default"))) int exportedvar;
+ extern __attribute__((__visibility__("hidden"))) int hiddenfunc
(void);
+ extern __attribute__((__visibility__("default"))) int exportedfunc
(void);],
+ [],
+ gl_cv_cc_visibility=yes,
+ gl_cv_cc_visibility=no)
+ CFLAGS="$gl_save_CFLAGS"])
+ AC_MSG_RESULT([$gl_cv_cc_visibility])
+ if test $gl_cv_cc_visibility = yes; then
+ CFLAG_VISIBILITY="-fvisibility=hidden"
+ HAVE_VISIBILITY=1
+ fi
+ fi
+ AC_SUBST([CFLAG_VISIBILITY])
+ AC_SUBST([HAVE_VISIBILITY])
+ AC_DEFINE_UNQUOTED([HAVE_VISIBILITY], [$HAVE_VISIBILITY],
+ [Define to 1 or 0, depending whether the compiler supports simple
visibility declarations.])
+])
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