299 lines
12 KiB
Plaintext
299 lines
12 KiB
Plaintext
# intl.m4 serial 27 (gettext-0.19)
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dnl Copyright (C) 1995-2014 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl
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dnl This file can can be used in projects which are not available under
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dnl the GNU General Public License or the GNU Library General Public
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dnl License but which still want to provide support for the GNU gettext
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dnl functionality.
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dnl Please note that the actual code of the GNU gettext library is covered
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dnl by the GNU Library General Public License, and the rest of the GNU
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dnl gettext package package is covered by the GNU General Public License.
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dnl They are *not* in the public domain.
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dnl Authors:
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dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
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dnl Bruno Haible <haible@clisp.cons.org>, 2000-2009.
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AC_PREREQ([2.60])
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dnl Checks for all prerequisites of the intl subdirectory,
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dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
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dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
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AC_DEFUN([AM_INTL_SUBDIR],
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[
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AC_REQUIRE([AC_PROG_INSTALL])dnl
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AC_REQUIRE([AC_PROG_MKDIR_P])dnl
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AC_REQUIRE([AC_PROG_CC])dnl
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AC_REQUIRE([AC_CANONICAL_HOST])dnl
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AC_REQUIRE([gt_GLIBC2])dnl
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AC_REQUIRE([AC_PROG_RANLIB])dnl
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AC_REQUIRE([gl_VISIBILITY])dnl
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AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl
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AC_REQUIRE([AC_TYPE_LONG_LONG_INT])dnl
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AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
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AC_REQUIRE([gt_TYPE_WINT_T])dnl
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AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
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AC_REQUIRE([gt_TYPE_INTMAX_T])
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AC_REQUIRE([gt_PRINTF_POSIX])
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AC_REQUIRE([gl_GLIBC21])dnl
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AC_REQUIRE([gl_XSIZE])dnl
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AC_REQUIRE([gl_FCNTL_O_FLAGS])dnl
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AC_REQUIRE([gt_INTL_MACOSX])dnl
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AC_REQUIRE([gl_EXTERN_INLINE])dnl
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AC_REQUIRE([gt_GL_ATTRIBUTE])dnl
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dnl Support for automake's --enable-silent-rules.
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case "$enable_silent_rules" in
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yes) INTL_DEFAULT_VERBOSITY=0;;
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no) INTL_DEFAULT_VERBOSITY=1;;
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*) INTL_DEFAULT_VERBOSITY=1;;
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esac
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AC_SUBST([INTL_DEFAULT_VERBOSITY])
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AC_CHECK_TYPE([ptrdiff_t], ,
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[AC_DEFINE([ptrdiff_t], [long],
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[Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
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])
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AC_CHECK_HEADERS([features.h stddef.h stdlib.h string.h])
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AC_CHECK_FUNCS([asprintf fwprintf newlocale putenv setenv setlocale \
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snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb])
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dnl Use the _snprintf function only if it is declared (because on NetBSD it
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dnl is defined as a weak alias of snprintf; we prefer to use the latter).
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AC_CHECK_DECLS([_snprintf, _snwprintf], , , [#include <stdio.h>])
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dnl Use the *_unlocked functions only if they are declared.
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dnl (because some of them were defined without being declared in Solaris
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dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
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dnl on Solaris 2.5.1 to run on Solaris 2.6).
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AC_CHECK_DECLS([getc_unlocked], , , [#include <stdio.h>])
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case $gt_cv_func_printf_posix in
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*yes) HAVE_POSIX_PRINTF=1 ;;
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*) HAVE_POSIX_PRINTF=0 ;;
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esac
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AC_SUBST([HAVE_POSIX_PRINTF])
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if test "$ac_cv_func_asprintf" = yes; then
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HAVE_ASPRINTF=1
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else
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HAVE_ASPRINTF=0
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fi
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AC_SUBST([HAVE_ASPRINTF])
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if test "$ac_cv_func_snprintf" = yes; then
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HAVE_SNPRINTF=1
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else
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HAVE_SNPRINTF=0
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fi
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AC_SUBST([HAVE_SNPRINTF])
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if test "$ac_cv_func_newlocale" = yes; then
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HAVE_NEWLOCALE=1
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else
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HAVE_NEWLOCALE=0
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fi
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AC_SUBST([HAVE_NEWLOCALE])
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if test "$ac_cv_func_wprintf" = yes; then
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HAVE_WPRINTF=1
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else
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HAVE_WPRINTF=0
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fi
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AC_SUBST([HAVE_WPRINTF])
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AM_LANGINFO_CODESET
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gt_LC_MESSAGES
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dnl Compilation on mingw and Cygwin needs special Makefile rules, because
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dnl 1. when we install a shared library, we must arrange to export
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dnl auxiliary pointer variables for every exported variable,
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dnl 2. when we install a shared library and a static library simultaneously,
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dnl the include file specifies __declspec(dllimport) and therefore we
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dnl must arrange to define the auxiliary pointer variables for the
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dnl exported variables _also_ in the static library.
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if test "$enable_shared" = yes; then
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case "$host_os" in
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mingw* | cygwin*) is_woe32dll=yes ;;
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*) is_woe32dll=no ;;
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esac
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else
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is_woe32dll=no
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fi
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WOE32DLL=$is_woe32dll
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AC_SUBST([WOE32DLL])
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dnl On mingw and Cygwin, we can activate special Makefile rules which add
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dnl version information to the shared libraries and executables.
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case "$host_os" in
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mingw* | cygwin*) is_woe32=yes ;;
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*) is_woe32=no ;;
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esac
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WOE32=$is_woe32
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AC_SUBST([WOE32])
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if test $WOE32 = yes; then
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dnl Check for a program that compiles Windows resource files.
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AC_CHECK_TOOL([WINDRES], [windres])
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fi
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dnl Determine whether when creating a library, "-lc" should be passed to
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dnl libtool or not. On many platforms, it is required for the libtool option
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dnl -no-undefined to work. On HP-UX, however, the -lc - stored by libtool
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dnl in the *.la files - makes it impossible to create multithreaded programs,
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dnl because libtool also reorders the -lc to come before the -pthread, and
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dnl this disables pthread_create() <http://docs.hp.com/en/1896/pthreads.html>.
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case "$host_os" in
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hpux*) LTLIBC="" ;;
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*) LTLIBC="-lc" ;;
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esac
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AC_SUBST([LTLIBC])
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dnl Rename some macros and functions used for locking.
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AH_BOTTOM([
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#define __libc_lock_t gl_lock_t
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#define __libc_lock_define gl_lock_define
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#define __libc_lock_define_initialized gl_lock_define_initialized
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#define __libc_lock_init gl_lock_init
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#define __libc_lock_lock gl_lock_lock
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#define __libc_lock_unlock gl_lock_unlock
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#define __libc_lock_recursive_t gl_recursive_lock_t
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#define __libc_lock_define_recursive gl_recursive_lock_define
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#define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized
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#define __libc_lock_init_recursive gl_recursive_lock_init
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#define __libc_lock_lock_recursive gl_recursive_lock_lock
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#define __libc_lock_unlock_recursive gl_recursive_lock_unlock
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#define glthread_in_use libintl_thread_in_use
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#define glthread_lock_init_func libintl_lock_init_func
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#define glthread_lock_lock_func libintl_lock_lock_func
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#define glthread_lock_unlock_func libintl_lock_unlock_func
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#define glthread_lock_destroy_func libintl_lock_destroy_func
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#define glthread_rwlock_init_multithreaded libintl_rwlock_init_multithreaded
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#define glthread_rwlock_init_func libintl_rwlock_init_func
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#define glthread_rwlock_rdlock_multithreaded libintl_rwlock_rdlock_multithreaded
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#define glthread_rwlock_rdlock_func libintl_rwlock_rdlock_func
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#define glthread_rwlock_wrlock_multithreaded libintl_rwlock_wrlock_multithreaded
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#define glthread_rwlock_wrlock_func libintl_rwlock_wrlock_func
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#define glthread_rwlock_unlock_multithreaded libintl_rwlock_unlock_multithreaded
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#define glthread_rwlock_unlock_func libintl_rwlock_unlock_func
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#define glthread_rwlock_destroy_multithreaded libintl_rwlock_destroy_multithreaded
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#define glthread_rwlock_destroy_func libintl_rwlock_destroy_func
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#define glthread_recursive_lock_init_multithreaded libintl_recursive_lock_init_multithreaded
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#define glthread_recursive_lock_init_func libintl_recursive_lock_init_func
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#define glthread_recursive_lock_lock_multithreaded libintl_recursive_lock_lock_multithreaded
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#define glthread_recursive_lock_lock_func libintl_recursive_lock_lock_func
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#define glthread_recursive_lock_unlock_multithreaded libintl_recursive_lock_unlock_multithreaded
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#define glthread_recursive_lock_unlock_func libintl_recursive_lock_unlock_func
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#define glthread_recursive_lock_destroy_multithreaded libintl_recursive_lock_destroy_multithreaded
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#define glthread_recursive_lock_destroy_func libintl_recursive_lock_destroy_func
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#define glthread_once_func libintl_once_func
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#define glthread_once_singlethreaded libintl_once_singlethreaded
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#define glthread_once_multithreaded libintl_once_multithreaded
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])
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])
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dnl Checks for the core files of the intl subdirectory:
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dnl dcigettext.c
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dnl eval-plural.h
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dnl explodename.c
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dnl finddomain.c
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dnl gettextP.h
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dnl gmo.h
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dnl hash-string.h hash-string.c
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dnl l10nflist.c
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dnl libgnuintl.h.in (except the *printf stuff)
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dnl loadinfo.h
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dnl loadmsgcat.c
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dnl localealias.c
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dnl log.c
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dnl plural-exp.h plural-exp.c
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dnl plural.y
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dnl Used by libglocale.
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AC_DEFUN([gt_INTL_SUBDIR_CORE],
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[
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AC_REQUIRE([AC_C_INLINE])dnl
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AC_REQUIRE([AC_TYPE_SIZE_T])dnl
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AC_REQUIRE([gl_AC_HEADER_STDINT_H])
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AC_REQUIRE([AC_FUNC_ALLOCA])dnl
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AC_REQUIRE([AC_FUNC_MMAP])dnl
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AC_REQUIRE([gt_INTDIV0])dnl
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AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
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AC_REQUIRE([gt_INTTYPES_PRI])dnl
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AC_REQUIRE([gl_LOCK])dnl
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }]],
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[[]])],
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[AC_DEFINE([HAVE_BUILTIN_EXPECT], [1],
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[Define to 1 if the compiler understands __builtin_expect.])])
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AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
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AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
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stpcpy strcasecmp strdup strtoul tsearch uselocale argz_count \
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argz_stringify argz_next __fsetlocking])
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dnl Use the *_unlocked functions only if they are declared.
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dnl (because some of them were defined without being declared in Solaris
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dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
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dnl on Solaris 2.5.1 to run on Solaris 2.6).
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AC_CHECK_DECLS([feof_unlocked, fgets_unlocked], , , [#include <stdio.h>])
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AM_ICONV
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dnl intl/plural.c is generated from intl/plural.y. It requires bison,
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dnl because plural.y uses bison specific features. It requires at least
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dnl bison-2.7 for %define api.pure.
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dnl bison is only needed for the maintainer (who touches plural.y). But in
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dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
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dnl the rule in general Makefile. Now, some people carelessly touch the
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dnl files or have a broken "make" program, hence the plural.c rule will
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dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
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dnl present or too old.
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AC_CHECK_PROGS([INTLBISON], [bison])
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if test -z "$INTLBISON"; then
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ac_verc_fail=yes
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else
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dnl Found it, now check the version.
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AC_MSG_CHECKING([version of bison])
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changequote(<<,>>)dnl
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ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
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case $ac_prog_version in
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'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
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2.[7-9]* | [3-9].*)
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changequote([,])dnl
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ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
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*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
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esac
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AC_MSG_RESULT([$ac_prog_version])
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fi
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if test $ac_verc_fail = yes; then
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INTLBISON=:
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fi
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])
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dnl Copies _GL_UNUSED and _GL_ATTRIBUTE_PURE definitions from
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dnl gnulib-common.m4 as a fallback, if the project isn't using Gnulib.
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AC_DEFUN([gt_GL_ATTRIBUTE], [
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m4_ifndef([gl_[]COMMON],
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AH_VERBATIM([gt_gl_attribute],
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[/* Define as a marker that can be attached to declarations that might not
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be used. This helps to reduce warnings, such as from
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GCC -Wunused-parameter. */
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#ifndef _GL_UNUSED
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# if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
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# define _GL_UNUSED __attribute__ ((__unused__))
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# else
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# define _GL_UNUSED
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# endif
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#endif
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/* The __pure__ attribute was added in gcc 2.96. */
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#ifndef _GL_ATTRIBUTE_PURE
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# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
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# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
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# else
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# define _GL_ATTRIBUTE_PURE /* empty */
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# endif
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#endif
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]))])
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