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# 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
]))])