2N/Adnl Copyright (C) 1995-2010 Free Software Foundation, Inc.
2N/Adnl This file is free software; the Free Software Foundation
2N/Adnl gives unlimited permission to copy
and/or distribute it,
2N/Adnl with or without modifications, as long as this notice is preserved.
2N/Adnl This file can can be used in projects which are not available under
2N/Adnl the GNU General Public License or the GNU Library General Public
2N/Adnl License but which still want to provide support for the GNU gettext
2N/Adnl Please note that the actual code of the GNU gettext library is covered
2N/Adnl by the GNU Library General Public License, and the rest of the GNU
2N/Adnl gettext package package is covered by the GNU General Public License.
2N/Adnl They are *not* in the public domain.
2N/Adnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
2N/Adnl Bruno Haible <haible@clisp.cons.org>, 2000-2006, 2008-2010.
2N/Adnl Macro to add for using GNU gettext.
2N/Adnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
2N/Adnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
2N/Adnl default (if it is not specified or empty) is 'no-libtool'.
2N/Adnl INTLSYMBOL should be 'external' for packages with no intl directory,
2N/Adnl and 'no-libtool' or 'use-libtool' for packages with an intl directory.
2N/Adnl If INTLSYMBOL is 'use-libtool', then a libtool library
2N/Adnl depending on --{enable,disable}-{shared,static} and on the presence of
2N/Adnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
2N/Adnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
2N/Adnl implementations (in libc or libintl) without the ngettext() function
2N/Adnl will be ignored. If NEEDSYMBOL is specified and is
2N/Adnl 'need-formatstring-macros', then GNU gettext implementations that don't
2N/Adnl support the ISO C 99 <
inttypes.h> formatstring macros will be ignored.
2N/Adnl INTLDIR is used to find the intl libraries. If empty,
2N/Adnl the value `$(top_builddir)/intl/' is used.
2N/Adnl The result of the configuration is one of three cases:
2N/Adnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
2N/Adnl Catalog format: GNU --> install in $(datadir)
2N/Adnl Catalog extension: .mo after installation, .gmo in source tree
2N/Adnl 2) GNU gettext has been found in the system's C library.
2N/Adnl Catalog format: GNU --> install in $(datadir)
2N/Adnl Catalog extension: .mo after installation, .gmo in source tree
2N/Adnl 3) No internationalization, always use English msgid.
2N/Adnl Catalog format: none
2N/Adnl Catalog extension: none
2N/Adnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
2N/Adnl The use of .gmo is historical (it was needed to avoid overwriting the
2N/Adnl GNU format catalogs when building on a platform with an
X/Open gettext),
2N/Adnl but we keep it in order not to force irrelevant filename changes on the
2N/AAC_DEFUN([AM_GNU_GETTEXT],
2N/A dnl Argument checking.
2N/A ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
2N/A [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
2N/A ifelse(ifelse([$1], [], [old])[]ifelse([$1], [no-libtool], [old]), [old],
2N/A [AC_DIAGNOSE([obsolete], [Use of AM_GNU_GETTEXT without [external] argument is deprecated.])])
2N/A ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
2N/A [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
2N/A define([gt_included_intl],
2N/A ifelse([$1], [external],
2N/A ifdef([AM_GNU_GETTEXT_][INTL_SUBDIR], [yes], [no]),
2N/A define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], []))
2N/A AM_GNU_GETTEXT_NEED([$2])
2N/A AC_REQUIRE([AM_PO_SUBDIRS])dnl
2N/A ifelse(gt_included_intl, yes, [
2N/A AC_REQUIRE([AM_INTL_SUBDIR])dnl
2N/A dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
2N/A AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
2N/A AC_REQUIRE([AC_LIB_RPATH])
2N/A dnl Sometimes libintl requires libiconv, so first search for libiconv.
2N/A dnl Ideally we would do this search only after the
2N/A dnl if test "$USE_NLS" = "yes"; then
2N/A dnl if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then
2N/A dnl the configure script would need to contain the same shell code
2N/A dnl again, outside any 'if'. There are two solutions:
2N/A dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
2N/A dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
2N/A dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
2N/A dnl documented, we avoid it.
2N/A ifelse(gt_included_intl, yes, , [
2N/A AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
2N/A dnl Sometimes, on MacOS X, libintl requires linking with CoreFoundation.
2N/A AC_REQUIRE([AM_NLS])
2N/A ifelse(gt_included_intl, yes, [
2N/A BUILD_INCLUDED_LIBINTL=no
2N/A USE_INCLUDED_LIBINTL=no
2N/A dnl Add a version number to the cache macros.
2N/A case " $gt_needs " in
2N/A *" need-formatstring-macros "*) gt_api_version=3 ;;
2N/A *" need-ngettext "*) gt_api_version=2 ;;
2N/A *) gt_api_version=1 ;;
2N/A gt_func_gnugettext_libc="gt_cv_func_gnugettext${gt_api_version}_libc"
2N/A gt_func_gnugettext_libintl="gt_cv_func_gnugettext${gt_api_version}_libintl"
2N/A dnl If we use NLS figure out what method
2N/A if test "$USE_NLS" = "yes"; then
2N/A gt_use_preinstalled_gnugettext=no
2N/A ifelse(gt_included_intl, yes, [
2N/A AC_MSG_CHECKING([whether included gettext is requested])
2N/A AC_ARG_WITH([included-gettext],
2N/A [ --with-included-gettext use the GNU gettext library included here],
2N/A nls_cv_force_use_gnu_gettext=$withval,
2N/A nls_cv_force_use_gnu_gettext=no)
2N/A AC_MSG_RESULT([$nls_cv_force_use_gnu_gettext])
2N/A nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
2N/A if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
2N/A dnl User does not insist on using GNU NLS library. Figure out what
2N/A dnl to use. If GNU gettext is available we use this. Else we have
2N/A dnl to fall back to GNU NLS library.
2N/A if test $gt_api_version -ge 3; then
2N/A gt_revision_test_code='
2N/A#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
2N/A#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
2N/Atypedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
2N/A gt_revision_test_code=
2N/A if test $gt_api_version -ge 2; then
2N/A gt_expression_test_code=' + * ngettext ("", "", 0)'
2N/A gt_expression_test_code=
2N/A AC_CACHE_CHECK([for GNU gettext in libc], [$gt_func_gnugettext_libc],
2N/A$gt_revision_test_code
2N/Aextern int _nl_msg_cat_cntr;
2N/Aextern int *_nl_domain_bindings;
2N/Abindtextdomain ("", "");
2N/Areturn * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_domain_bindings
2N/A [eval "$gt_func_gnugettext_libc=yes"],
2N/A [eval "$gt_func_gnugettext_libc=no"])])
2N/A if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then
2N/A dnl Sometimes libintl requires libiconv, so first search for libiconv.
2N/A ifelse(gt_included_intl, yes, , [
2N/A dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
2N/A dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
2N/A dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
2N/A dnl even if libiconv doesn't exist.
2N/A AC_LIB_LINKFLAGS_BODY([intl])
2N/A AC_CACHE_CHECK([for GNU gettext in libintl],
2N/A [$gt_func_gnugettext_libintl],
2N/A [gt_save_CPPFLAGS="$CPPFLAGS"
2N/A CPPFLAGS="$CPPFLAGS $INCINTL"
2N/A gt_save_LIBS="$LIBS"
2N/A LIBS="$LIBS $LIBINTL"
2N/A dnl Now see whether libintl exists and does not depend on libiconv.
2N/A$gt_revision_test_code
2N/Aextern int _nl_msg_cat_cntr;
2N/Aconst char *_nl_expand_alias (const char *);
2N/Abindtextdomain ("", "");
2N/Areturn * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_expand_alias ("")
2N/A [eval "$gt_func_gnugettext_libintl=yes"],
2N/A [eval "$gt_func_gnugettext_libintl=no"])
2N/A dnl Now see whether libintl exists and depends on libiconv.
2N/A if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" != yes; } && test -n "$LIBICONV"; then
2N/A LIBS="$LIBS $LIBICONV"
2N/A$gt_revision_test_code
2N/Aextern int _nl_msg_cat_cntr;
2N/Aconst char *_nl_expand_alias (const char *);
2N/Abindtextdomain ("", "");
2N/Areturn * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_expand_alias ("")
2N/A [LIBINTL="$LIBINTL $LIBICONV"
2N/A LTLIBINTL="$LTLIBINTL $LTLIBICONV"
2N/A eval "$gt_func_gnugettext_libintl=yes"
2N/A CPPFLAGS="$gt_save_CPPFLAGS"
2N/A LIBS="$gt_save_LIBS"])
2N/A dnl If an already present or preinstalled GNU gettext() is found,
2N/A dnl use it. But if this macro is used in GNU gettext, and GNU
2N/A dnl gettext is already preinstalled in libintl, we update this
2N/A if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" = "yes"; } \
2N/A || { { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; } \
2N/A && test "$PACKAGE" != gettext-runtime \
2N/A && test "$PACKAGE" != gettext-tools; }; then
2N/A gt_use_preinstalled_gnugettext=yes
2N/A dnl Reset the values set by searching for libintl.
2N/A ifelse(gt_included_intl, yes, [
2N/A if test "$gt_use_preinstalled_gnugettext" != "yes"; then
2N/A dnl GNU gettext is not found in the C library.
2N/A dnl Fall back on included GNU gettext library.
2N/A nls_cv_use_gnu_gettext=yes
2N/A if test "$nls_cv_use_gnu_gettext" = "yes"; then
2N/A dnl Mark actions used to generate GNU NLS library.
2N/A BUILD_INCLUDED_LIBINTL=yes
2N/A USE_INCLUDED_LIBINTL=yes
2N/A LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV $LIBTHREAD"
2N/A LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV $LTLIBTHREAD"
2N/A LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
2N/A if test "$gt_use_preinstalled_gnugettext" = "yes" \
2N/A || test "$nls_cv_use_gnu_gettext" = "yes"; then
2N/A dnl Mark actions to use GNU gettext tools.
2N/A if test -n "$INTL_MACOSX_LIBS"; then
2N/A if test "$gt_use_preinstalled_gnugettext" = "yes" \
2N/A || test "$nls_cv_use_gnu_gettext" = "yes"; then
2N/A dnl Some extra flags are needed during linking.
2N/A LIBINTL="$LIBINTL $INTL_MACOSX_LIBS"
2N/A LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS"
2N/A if test "$gt_use_preinstalled_gnugettext" = "yes" \
2N/A || test "$nls_cv_use_gnu_gettext" = "yes"; then
2N/A AC_DEFINE([ENABLE_NLS], [1],
2N/A [Define to 1 if translation of program messages to the user's native language
2N/A AC_MSG_CHECKING([whether to use NLS])
2N/A AC_MSG_RESULT([$USE_NLS])
2N/A if test "$USE_NLS" = "yes"; then
2N/A AC_MSG_CHECKING([where the gettext function comes from])
2N/A if test "$gt_use_preinstalled_gnugettext" = "yes"; then
2N/A if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then
2N/A gt_source="external libintl"
2N/A gt_source="included intl directory"
2N/A AC_MSG_RESULT([$gt_source])
2N/A if test "$USE_NLS" = "yes"; then
2N/A if test "$gt_use_preinstalled_gnugettext" = "yes"; then
2N/A if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then
2N/A AC_MSG_CHECKING([how to link with libintl])
2N/A AC_MSG_RESULT([$LIBINTL])
2N/A AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
2N/A dnl For backward compatibility. Some packages may be using this.
2N/A AC_DEFINE([HAVE_GETTEXT], [1],
2N/A [Define if the GNU gettext() function is already present or preinstalled.])
2N/A AC_DEFINE([HAVE_DCGETTEXT], [1],
2N/A [Define if the GNU dcgettext() function is already present or preinstalled.])
2N/A dnl We need to process the po/ directory.
2N/A ifelse(gt_included_intl, yes, [
2N/A dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
2N/A dnl to 'yes' because some of the testsuite requires it.
2N/A if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
2N/A BUILD_INCLUDED_LIBINTL=yes
2N/A dnl Make all variables we use known to autoconf.
2N/A AC_SUBST([BUILD_INCLUDED_LIBINTL])
2N/A AC_SUBST([USE_INCLUDED_LIBINTL])
2N/A AC_SUBST([CATOBJEXT])
2N/A nls_cv_header_libgt=
2N/A dnl For backward compatibility. Some Makefiles may be using this.
2N/A AC_SUBST([DATADIRNAME])
2N/A dnl For backward compatibility. Some Makefiles may be using this.
2N/A AC_SUBST([INSTOBJEXT])
2N/A dnl For backward compatibility. Some Makefiles may be using this.
2N/A dnl For backward compatibility. Some Makefiles may be using this.
2N/A if test "$USE_INCLUDED_LIBINTL" = yes; then
2N/A INTLOBJS="\$(GETTOBJS)"
2N/A AC_SUBST([INTLOBJS])
2N/A dnl Enable libtool support if the surrounding package wishes it.
2N/A INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
2N/A AC_SUBST([INTL_LIBTOOL_SUFFIX_PREFIX])
2N/A dnl For backward compatibility. Some Makefiles may be using this.
2N/A AC_SUBST([INTLLIBS])
2N/A dnl Make all documented variables known to autoconf.
2N/A AC_SUBST([LTLIBINTL])
2N/Adnl gt_NEEDS_INIT ensures that the gt_needs variable is initialized.
2N/Am4_define([gt_NEEDS_INIT],
2N/A m4_divert_text([DEFAULTS], [gt_needs=])
2N/A m4_define([gt_NEEDS_INIT], [])
2N/Adnl Usage: AM_GNU_GETTEXT_NEED([NEEDSYMBOL])
2N/AAC_DEFUN([AM_GNU_GETTEXT_NEED],
2N/A m4_divert_text([INIT_PREPARE], [gt_needs="$gt_needs $1"])
2N/Adnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
2N/AAC_DEFUN([AM_GNU_GETTEXT_VERSION], [])