416 lines
16 KiB
Plaintext
416 lines
16 KiB
Plaintext
# gettext.m4 serial 20 (gettext-0.12)
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dnl Copyright (C) 1995-2003 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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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>, 2000-2003.
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dnl Macro to add for using GNU gettext.
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dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
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dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
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dnl default (if it is not specified or empty) is 'no-libtool'.
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dnl INTLSYMBOL should be 'external' for packages with no intl directory,
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dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory.
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dnl If INTLSYMBOL is 'use-libtool', then a libtool library
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dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
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dnl depending on --{enable,disable}-{shared,static} and on the presence of
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dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
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dnl $(top_builddir)/intl/libintl.a will be created.
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dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
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dnl implementations (in libc or libintl) without the ngettext() function
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dnl will be ignored. If NEEDSYMBOL is specified and is
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dnl 'need-formatstring-macros', then GNU gettext implementations that don't
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dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
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dnl INTLDIR is used to find the intl libraries. If empty,
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dnl the value `$(top_builddir)/intl/' is used.
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dnl
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dnl The result of the configuration is one of three cases:
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dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
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dnl and used.
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dnl Catalog format: GNU --> install in $(datadir)
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dnl Catalog extension: .mo after installation, .gmo in source tree
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dnl 2) GNU gettext has been found in the system's C library.
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dnl Catalog format: GNU --> install in $(datadir)
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dnl Catalog extension: .mo after installation, .gmo in source tree
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dnl 3) No internationalization, always use English msgid.
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dnl Catalog format: none
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dnl Catalog extension: none
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dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
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dnl The use of .gmo is historical (it was needed to avoid overwriting the
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dnl GNU format catalogs when building on a platform with an X/Open gettext),
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dnl but we keep it in order not to force irrelevant filename changes on the
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dnl maintainers.
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dnl
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AC_DEFUN([AM_GNU_GETTEXT],
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[
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dnl Argument checking.
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ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
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[errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
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])])])])])
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ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
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[errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
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])])])])
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define(gt_included_intl, ifelse([$1], [external], [no], [yes]))
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define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], []))
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AC_REQUIRE([AM_PO_SUBDIRS])dnl
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ifelse(gt_included_intl, yes, [
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AC_REQUIRE([AM_INTL_SUBDIR])dnl
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])
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dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
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AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
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AC_REQUIRE([AC_LIB_RPATH])
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dnl Sometimes libintl requires libiconv, so first search for libiconv.
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dnl Ideally we would do this search only after the
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dnl if test "$USE_NLS" = "yes"; then
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dnl if test "$gt_cv_func_gnugettext_libc" != "yes"; then
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dnl tests. But if configure.ac invokes AM_ICONV after AM_GNU_GETTEXT
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dnl the configure script would need to contain the same shell code
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dnl again, outside any 'if'. There are two solutions:
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dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
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dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
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dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
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dnl documented, we avoid it.
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ifelse(gt_included_intl, yes, , [
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AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
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])
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dnl Set USE_NLS.
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AM_NLS
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ifelse(gt_included_intl, yes, [
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BUILD_INCLUDED_LIBINTL=no
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USE_INCLUDED_LIBINTL=no
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])
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LIBINTL=
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LTLIBINTL=
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POSUB=
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dnl If we use NLS figure out what method
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if test "$USE_NLS" = "yes"; then
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gt_use_preinstalled_gnugettext=no
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ifelse(gt_included_intl, yes, [
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AC_MSG_CHECKING([whether included gettext is requested])
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AC_ARG_WITH(included-gettext,
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[ --with-included-gettext use the GNU gettext library included here],
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nls_cv_force_use_gnu_gettext=$withval,
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nls_cv_force_use_gnu_gettext=no)
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AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
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nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
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if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
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])
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dnl User does not insist on using GNU NLS library. Figure out what
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dnl to use. If GNU gettext is available we use this. Else we have
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dnl to fall back to GNU NLS library.
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dnl Add a version number to the cache macros.
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define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
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define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
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define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
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AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
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[AC_TRY_LINK([#include <libintl.h>
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]ifelse([$2], [need-formatstring-macros],
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[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
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#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
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#endif
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changequote(,)dnl
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typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
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changequote([,])dnl
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], [])[extern int _nl_msg_cat_cntr;
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extern int *_nl_domain_bindings;],
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[bindtextdomain ("", "");
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return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
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gt_cv_func_gnugettext_libc=yes,
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gt_cv_func_gnugettext_libc=no)])
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if test "$gt_cv_func_gnugettext_libc" != "yes"; then
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dnl Sometimes libintl requires libiconv, so first search for libiconv.
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ifelse(gt_included_intl, yes, , [
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AM_ICONV_LINK
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])
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dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
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dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
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dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
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dnl even if libiconv doesn't exist.
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AC_LIB_LINKFLAGS_BODY([intl])
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AC_CACHE_CHECK([for GNU gettext in libintl],
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gt_cv_func_gnugettext_libintl,
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[gt_save_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS $INCINTL"
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gt_save_LIBS="$LIBS"
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LIBS="$LIBS $LIBINTL"
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dnl Now see whether libintl exists and does not depend on libiconv.
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AC_TRY_LINK([#include <libintl.h>
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]ifelse([$2], [need-formatstring-macros],
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[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
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#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
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#endif
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changequote(,)dnl
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typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
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changequote([,])dnl
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], [])[extern int _nl_msg_cat_cntr;
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extern
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#ifdef __cplusplus
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"C"
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#endif
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const char *_nl_expand_alias ();],
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[bindtextdomain ("", "");
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return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
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gt_cv_func_gnugettext_libintl=yes,
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gt_cv_func_gnugettext_libintl=no)
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dnl Now see whether libintl exists and depends on libiconv.
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if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
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LIBS="$LIBS $LIBICONV"
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AC_TRY_LINK([#include <libintl.h>
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]ifelse([$2], [need-formatstring-macros],
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[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
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#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
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#endif
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changequote(,)dnl
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typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
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changequote([,])dnl
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], [])[extern int _nl_msg_cat_cntr;
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extern
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#ifdef __cplusplus
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"C"
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#endif
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const char *_nl_expand_alias ();],
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[bindtextdomain ("", "");
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return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
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[LIBINTL="$LIBINTL $LIBICONV"
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LTLIBINTL="$LTLIBINTL $LTLIBICONV"
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gt_cv_func_gnugettext_libintl=yes
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])
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fi
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CPPFLAGS="$gt_save_CPPFLAGS"
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LIBS="$gt_save_LIBS"])
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fi
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dnl If an already present or preinstalled GNU gettext() is found,
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dnl use it. But if this macro is used in GNU gettext, and GNU
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dnl gettext is already preinstalled in libintl, we update this
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dnl libintl. (Cf. the install rule in intl/Makefile.in.)
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if test "$gt_cv_func_gnugettext_libc" = "yes" \
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|| { test "$gt_cv_func_gnugettext_libintl" = "yes" \
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&& test "$PACKAGE" != gettext-runtime \
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&& test "$PACKAGE" != gettext-tools; }; then
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gt_use_preinstalled_gnugettext=yes
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else
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dnl Reset the values set by searching for libintl.
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LIBINTL=
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LTLIBINTL=
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INCINTL=
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fi
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ifelse(gt_included_intl, yes, [
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if test "$gt_use_preinstalled_gnugettext" != "yes"; then
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dnl GNU gettext is not found in the C library.
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dnl Fall back on included GNU gettext library.
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nls_cv_use_gnu_gettext=yes
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fi
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fi
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if test "$nls_cv_use_gnu_gettext" = "yes"; then
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dnl Mark actions used to generate GNU NLS library.
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BUILD_INCLUDED_LIBINTL=yes
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USE_INCLUDED_LIBINTL=yes
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LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
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LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
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LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
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fi
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if test "$gt_use_preinstalled_gnugettext" = "yes" \
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|| test "$nls_cv_use_gnu_gettext" = "yes"; then
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dnl Mark actions to use GNU gettext tools.
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CATOBJEXT=.gmo
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fi
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])
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if test "$gt_use_preinstalled_gnugettext" = "yes" \
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|| test "$nls_cv_use_gnu_gettext" = "yes"; then
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AC_DEFINE(ENABLE_NLS, 1,
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[Define to 1 if translation of program messages to the user's native language
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is requested.])
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else
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USE_NLS=no
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fi
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fi
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AC_MSG_CHECKING([whether to use NLS])
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AC_MSG_RESULT([$USE_NLS])
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if test "$USE_NLS" = "yes"; then
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AC_MSG_CHECKING([where the gettext function comes from])
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if test "$gt_use_preinstalled_gnugettext" = "yes"; then
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if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
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gt_source="external libintl"
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else
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gt_source="libc"
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fi
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else
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gt_source="included intl directory"
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fi
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AC_MSG_RESULT([$gt_source])
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fi
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if test "$USE_NLS" = "yes"; then
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if test "$gt_use_preinstalled_gnugettext" = "yes"; then
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if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
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AC_MSG_CHECKING([how to link with libintl])
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AC_MSG_RESULT([$LIBINTL])
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AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
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fi
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dnl For backward compatibility. Some packages may be using this.
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AC_DEFINE(HAVE_GETTEXT, 1,
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[Define if the GNU gettext() function is already present or preinstalled.])
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AC_DEFINE(HAVE_DCGETTEXT, 1,
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[Define if the GNU dcgettext() function is already present or preinstalled.])
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fi
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dnl We need to process the po/ directory.
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POSUB=po
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fi
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ifelse(gt_included_intl, yes, [
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dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
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dnl to 'yes' because some of the testsuite requires it.
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if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
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BUILD_INCLUDED_LIBINTL=yes
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fi
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dnl Make all variables we use known to autoconf.
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AC_SUBST(BUILD_INCLUDED_LIBINTL)
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AC_SUBST(USE_INCLUDED_LIBINTL)
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AC_SUBST(CATOBJEXT)
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dnl For backward compatibility. Some configure.acs may be using this.
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nls_cv_header_intl=
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nls_cv_header_libgt=
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dnl For backward compatibility. Some Makefiles may be using this.
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DATADIRNAME=share
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AC_SUBST(DATADIRNAME)
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dnl For backward compatibility. Some Makefiles may be using this.
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INSTOBJEXT=.mo
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AC_SUBST(INSTOBJEXT)
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dnl For backward compatibility. Some Makefiles may be using this.
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GENCAT=gencat
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AC_SUBST(GENCAT)
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dnl For backward compatibility. Some Makefiles may be using this.
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if test "$USE_INCLUDED_LIBINTL" = yes; then
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INTLOBJS="\$(GETTOBJS)"
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fi
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AC_SUBST(INTLOBJS)
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dnl Enable libtool support if the surrounding package wishes it.
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INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
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AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
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])
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dnl For backward compatibility. Some Makefiles may be using this.
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INTLLIBS="$LIBINTL"
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AC_SUBST(INTLLIBS)
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dnl Make all documented variables known to autoconf.
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AC_SUBST(LIBINTL)
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AC_SUBST(LTLIBINTL)
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AC_SUBST(POSUB)
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])
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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([AM_MKINSTALLDIRS])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([AC_PROG_RANLIB])dnl
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AC_REQUIRE([AC_ISC_POSIX])dnl
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AC_REQUIRE([AC_HEADER_STDC])dnl
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AC_REQUIRE([AC_C_CONST])dnl
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AC_REQUIRE([AC_C_INLINE])dnl
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AC_REQUIRE([AC_TYPE_OFF_T])dnl
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AC_REQUIRE([AC_TYPE_SIZE_T])dnl
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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([jm_GLIBC21])dnl
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AC_REQUIRE([gt_INTDIV0])dnl
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AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl
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AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl
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AC_REQUIRE([gt_INTTYPES_PRI])dnl
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AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
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stdlib.h string.h unistd.h sys/param.h])
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AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \
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geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \
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strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next \
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__fsetlocking])
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AM_ICONV
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AM_LANGINFO_CODESET
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if test $ac_cv_header_locale_h = yes; then
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AM_LC_MESSAGES
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fi
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dnl intl/plural.c is generated from intl/plural.y. It requires bison,
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dnl because plural.y uses bison specific features. It requires at least
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dnl bison-1.26 because earlier versions generate a plural.c that doesn't
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dnl compile.
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dnl bison is only needed for the maintainer (who touches plural.y). But in
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dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
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dnl the rule in general Makefile. Now, some people carelessly touch the
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dnl files or have a broken "make" program, hence the plural.c rule will
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dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
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dnl present or too old.
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AC_CHECK_PROGS([INTLBISON], [bison])
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if test -z "$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 $ac_prog_version in
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'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
|
|
1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
|
|
changequote([,])dnl
|
|
ac_prog_version="$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 Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
|
|
AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])
|