Edit File: intl.m4
# intl.m4 serial 29 (gettext-0.19) dnl Copyright (C) 1995-2014, 2016 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 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 is covered by the GNU General Public License. dnl They are *not* in the public domain. dnl Authors: dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000. dnl Bruno Haible <haible@clisp.cons.org>, 2000-2009. AC_PREREQ([2.60]) 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([AC_PROG_MKDIR_P])dnl 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_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([gl_FCNTL_O_FLAGS])dnl AC_REQUIRE([gt_INTL_MACOSX])dnl AC_REQUIRE([gl_EXTERN_INLINE])dnl AC_REQUIRE([gt_GL_ATTRIBUTE])dnl dnl Support for automake's --enable-silent-rules. case "$enable_silent_rules" in yes) INTL_DEFAULT_VERBOSITY=0;; no) INTL_DEFAULT_VERBOSITY=1;; *) INTL_DEFAULT_VERBOSITY=1;; esac AC_SUBST([INTL_DEFAULT_VERBOSITY]) 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([features.h stddef.h stdlib.h string.h]) AC_CHECK_FUNCS([asprintf fwprintf newlocale putenv setenv setlocale \ snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb]) 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). AC_CHECK_DECLS([_snprintf, _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). AC_CHECK_DECLS([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_newlocale" = yes; then HAVE_NEWLOCALE=1 else HAVE_NEWLOCALE=0 fi AC_SUBST([HAVE_NEWLOCALE]) 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 "$host_os" in mingw* | cygwin*) is_woe32dll=yes ;; *) is_woe32dll=no ;; esac else is_woe32dll=no fi WOE32DLL=$is_woe32dll AC_SUBST([WOE32DLL]) dnl On mingw and Cygwin, we can activate special Makefile rules which add dnl version information to the shared libraries and executables. case "$host_os" in mingw* | cygwin*) is_woe32=yes ;; *) is_woe32=no ;; esac WOE32=$is_woe32 AC_SUBST([WOE32]) if test $WOE32 = yes; then dnl Check for a program that compiles Windows resource files. AC_CHECK_TOOL([WINDRES], [windres]) fi dnl Determine whether when creating a library, "-lc" should be passed to dnl libtool or not. On many platforms, it is required for the libtool option dnl -no-undefined to work. On HP-UX, however, the -lc - stored by libtool dnl in the *.la files - makes it impossible to create multithreaded programs, dnl because libtool also reorders the -lc to come before the -pthread, and dnl this disables pthread_create() <http://docs.hp.com/en/1896/pthreads.html>. case "$host_os" in hpux*) LTLIBC="" ;; *) LTLIBC="-lc" ;; esac AC_SUBST([LTLIBC]) 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_func libintl_lock_init_func #define glthread_lock_lock_func libintl_lock_lock_func #define glthread_lock_unlock_func libintl_lock_unlock_func #define glthread_lock_destroy_func libintl_lock_destroy_func #define glthread_rwlock_init_multithreaded libintl_rwlock_init_multithreaded #define glthread_rwlock_init_func libintl_rwlock_init_func #define glthread_rwlock_rdlock_multithreaded libintl_rwlock_rdlock_multithreaded #define glthread_rwlock_rdlock_func libintl_rwlock_rdlock_func #define glthread_rwlock_wrlock_multithreaded libintl_rwlock_wrlock_multithreaded #define glthread_rwlock_wrlock_func libintl_rwlock_wrlock_func #define glthread_rwlock_unlock_multithreaded libintl_rwlock_unlock_multithreaded #define glthread_rwlock_unlock_func libintl_rwlock_unlock_func #define glthread_rwlock_destroy_multithreaded libintl_rwlock_destroy_multithreaded #define glthread_rwlock_destroy_func libintl_rwlock_destroy_func #define glthread_recursive_lock_init_multithreaded libintl_recursive_lock_init_multithreaded #define glthread_recursive_lock_init_func libintl_recursive_lock_init_func #define glthread_recursive_lock_lock_multithreaded libintl_recursive_lock_lock_multithreaded #define glthread_recursive_lock_lock_func libintl_recursive_lock_lock_func #define glthread_recursive_lock_unlock_multithreaded libintl_recursive_lock_unlock_multithreaded #define glthread_recursive_lock_unlock_func libintl_recursive_lock_unlock_func #define glthread_recursive_lock_destroy_multithreaded libintl_recursive_lock_destroy_multithreaded #define glthread_recursive_lock_destroy_func libintl_recursive_lock_destroy_func #define glthread_once_func libintl_once_func #define glthread_once_singlethreaded libintl_once_singlethreaded #define glthread_once_multithreaded libintl_once_multithreaded ]) ]) 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_LINK_IFELSE( [AC_LANG_PROGRAM( [[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 uselocale argz_count \ argz_stringify argz_next __fsetlocking]) dnl Solaris 12 provides getlocalename_l, while Illumos doesn't have dnl it nor the equivalent. if test $ac_cv_func_uselocale = yes; then AC_CHECK_FUNCS([getlocalename_l]) fi dnl Use the *_unlocked functions only if they are declared. dnl (because some of them were defined without being declared in Solaris dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built dnl on Solaris 2.5.1 to run on Solaris 2.6). AC_CHECK_DECLS([feof_unlocked, fgets_unlocked], , , [#include <stdio.h>]) AM_ICONV dnl intl/plural.c is generated from intl/plural.y. It requires bison, dnl because plural.y uses bison specific features. It requires at least dnl bison-2.7 for %define api.pure. dnl bison is only needed for the maintainer (who touches plural.y). But in dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put dnl the rule in general Makefile. Now, some people carelessly touch the dnl files or have a broken "make" program, hence the plural.c rule will dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not dnl present or too old. AC_CHECK_PROGS([INTLBISON], [bison]) if test -z "$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 $ac_prog_version in '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; 2.[7-9]* | [3-9].*) changequote([,])dnl ac_prog_version="$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 Copies _GL_UNUSED and _GL_ATTRIBUTE_PURE definitions from dnl gnulib-common.m4 as a fallback, if the project isn't using Gnulib. AC_DEFUN([gt_GL_ATTRIBUTE], [ m4_ifndef([gl_[]COMMON], AH_VERBATIM([gt_gl_attribute], [/* Define as a marker that can be attached to declarations that might not be used. This helps to reduce warnings, such as from GCC -Wunused-parameter. */ #ifndef _GL_UNUSED # if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) # define _GL_UNUSED __attribute__ ((__unused__)) # else # define _GL_UNUSED # endif #endif /* The __pure__ attribute was added in gcc 2.96. */ #ifndef _GL_ATTRIBUTE_PURE # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) # else # define _GL_ATTRIBUTE_PURE /* empty */ # endif #endif ]))])