| # gettext.m4 serial 72 (gettext-0.21.1) |
| dnl Copyright (C) 1995-2014, 2016, 2018-2020 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 Lesser 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 Lesser 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>, 2000-2006, 2008-2010. |
| |
| dnl Macro to add for using GNU gettext. |
| |
| dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]). |
| dnl INTLSYMBOL must be one of 'external', 'use-libtool'. |
| dnl INTLSYMBOL should be 'external' for packages other than GNU gettext, and |
| dnl 'use-libtool' for the packages 'gettext-runtime' and 'gettext-tools'. |
| dnl If INTLSYMBOL is 'use-libtool', then a libtool library |
| dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static, |
| dnl depending on --{enable,disable}-{shared,static} and on the presence of |
| dnl AM-DISABLE-SHARED). |
| dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext |
| dnl implementations (in libc or libintl) without the ngettext() function |
| dnl will be ignored. If NEEDSYMBOL is specified and is |
| dnl 'need-formatstring-macros', then GNU gettext implementations that don't |
| dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored. |
| dnl INTLDIR is used to find the intl libraries. If empty, |
| dnl the value '$(top_builddir)/intl/' is used. |
| dnl |
| dnl The result of the configuration is one of three cases: |
| dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled |
| dnl and used. |
| dnl Catalog format: GNU --> install in $(datadir) |
| dnl Catalog extension: .mo after installation, .gmo in source tree |
| dnl 2) GNU gettext has been found in the system's C library. |
| dnl Catalog format: GNU --> install in $(datadir) |
| dnl Catalog extension: .mo after installation, .gmo in source tree |
| dnl 3) No internationalization, always use English msgid. |
| dnl Catalog format: none |
| dnl Catalog extension: none |
| dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur. |
| dnl The use of .gmo is historical (it was needed to avoid overwriting the |
| dnl GNU format catalogs when building on a platform with an X/Open gettext), |
| dnl but we keep it in order not to force irrelevant filename changes on the |
| dnl maintainers. |
| dnl |
| AC_DEFUN([AM_GNU_GETTEXT], |
| [ |
| dnl Argument checking. |
| m4_if([$1], [], , [m4_if([$1], [external], , [m4_if([$1], [use-libtool], , |
| [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT |
| ])])])]) |
| m4_if(m4_if([$1], [], [old])[]m4_if([$1], [no-libtool], [old]), [old], |
| [errprint([ERROR: Use of AM_GNU_GETTEXT without [external] argument is no longer supported. |
| ])]) |
| m4_if([$2], [], , [m4_if([$2], [need-ngettext], , [m4_if([$2], [need-formatstring-macros], , |
| [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT |
| ])])])]) |
| define([gt_included_intl], |
| m4_if([$1], [external], [no], [yes])) |
| gt_NEEDS_INIT |
| AM_GNU_GETTEXT_NEED([$2]) |
| |
| AC_REQUIRE([AM_PO_SUBDIRS])dnl |
| m4_if(gt_included_intl, yes, [ |
| AC_REQUIRE([AM_INTL_SUBDIR])dnl |
| ]) |
| |
| dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. |
| AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
| AC_REQUIRE([AC_LIB_RPATH]) |
| |
| dnl Sometimes libintl requires libiconv, so first search for libiconv. |
| dnl Ideally we would do this search only after the |
| dnl if test "$USE_NLS" = "yes"; then |
| dnl if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then |
| dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT |
| dnl the configure script would need to contain the same shell code |
| dnl again, outside any 'if'. There are two solutions: |
| dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'. |
| dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE. |
| dnl Since AC_PROVIDE_IFELSE is not documented, we avoid it. |
| m4_if(gt_included_intl, yes, , [ |
| AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) |
| ]) |
| |
| dnl Sometimes, on Mac OS X, libintl requires linking with CoreFoundation. |
| gt_INTL_MACOSX |
| |
| dnl Set USE_NLS. |
| AC_REQUIRE([AM_NLS]) |
| |
| m4_if(gt_included_intl, yes, [ |
| BUILD_INCLUDED_LIBINTL=no |
| USE_INCLUDED_LIBINTL=no |
| ]) |
| LIBINTL= |
| LTLIBINTL= |
| POSUB= |
| |
| dnl Add a version number to the cache macros. |
| case " $gt_needs " in |
| *" need-formatstring-macros "*) gt_api_version=3 ;; |
| *" need-ngettext "*) gt_api_version=2 ;; |
| *) gt_api_version=1 ;; |
| esac |
| gt_func_gnugettext_libc="gt_cv_func_gnugettext${gt_api_version}_libc" |
| gt_func_gnugettext_libintl="gt_cv_func_gnugettext${gt_api_version}_libintl" |
| |
| dnl If we use NLS figure out what method |
| if test "$USE_NLS" = "yes"; then |
| gt_use_preinstalled_gnugettext=no |
| m4_if(gt_included_intl, yes, [ |
| AC_MSG_CHECKING([whether included gettext is requested]) |
| AC_ARG_WITH([included-gettext], |
| [ --with-included-gettext use the GNU gettext library included here], |
| nls_cv_force_use_gnu_gettext=$withval, |
| nls_cv_force_use_gnu_gettext=no) |
| AC_MSG_RESULT([$nls_cv_force_use_gnu_gettext]) |
| |
| nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" |
| if test "$nls_cv_force_use_gnu_gettext" != "yes"; then |
| ]) |
| dnl User does not insist on using GNU NLS library. Figure out what |
| dnl to use. If GNU gettext is available we use this. Else we have |
| dnl to fall back to GNU NLS library. |
| |
| if test $gt_api_version -ge 3; then |
| gt_revision_test_code=' |
| #ifndef __GNU_GETTEXT_SUPPORTED_REVISION |
| #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) |
| #endif |
| changequote(,)dnl |
| typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; |
| changequote([,])dnl |
| ' |
| else |
| gt_revision_test_code= |
| fi |
| if test $gt_api_version -ge 2; then |
| gt_expression_test_code=' + * ngettext ("", "", 0)' |
| else |
| gt_expression_test_code= |
| fi |
| |
| AC_CACHE_CHECK([for GNU gettext in libc], [$gt_func_gnugettext_libc], |
| [AC_LINK_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[ |
| #include <libintl.h> |
| #ifndef __GNU_GETTEXT_SUPPORTED_REVISION |
| extern int _nl_msg_cat_cntr; |
| extern int *_nl_domain_bindings; |
| #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_domain_bindings) |
| #else |
| #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 |
| #endif |
| $gt_revision_test_code |
| ]], |
| [[ |
| bindtextdomain ("", ""); |
| return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION |
| ]])], |
| [eval "$gt_func_gnugettext_libc=yes"], |
| [eval "$gt_func_gnugettext_libc=no"])]) |
| |
| if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then |
| dnl Sometimes libintl requires libiconv, so first search for libiconv. |
| m4_if(gt_included_intl, yes, , [ |
| AM_ICONV_LINK |
| ]) |
| dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL |
| dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv]) |
| dnl because that would add "-liconv" to LIBINTL and LTLIBINTL |
| dnl even if libiconv doesn't exist. |
| AC_LIB_LINKFLAGS_BODY([intl]) |
| AC_CACHE_CHECK([for GNU gettext in libintl], |
| [$gt_func_gnugettext_libintl], |
| [gt_save_CPPFLAGS="$CPPFLAGS" |
| CPPFLAGS="$CPPFLAGS $INCINTL" |
| gt_save_LIBS="$LIBS" |
| LIBS="$LIBS $LIBINTL" |
| dnl Now see whether libintl exists and does not depend on libiconv. |
| AC_LINK_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[ |
| #include <libintl.h> |
| #ifndef __GNU_GETTEXT_SUPPORTED_REVISION |
| extern int _nl_msg_cat_cntr; |
| extern |
| #ifdef __cplusplus |
| "C" |
| #endif |
| const char *_nl_expand_alias (const char *); |
| #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias ("")) |
| #else |
| #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 |
| #endif |
| $gt_revision_test_code |
| ]], |
| [[ |
| bindtextdomain ("", ""); |
| return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION |
| ]])], |
| [eval "$gt_func_gnugettext_libintl=yes"], |
| [eval "$gt_func_gnugettext_libintl=no"]) |
| dnl Now see whether libintl exists and depends on libiconv. |
| if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" != yes; } && test -n "$LIBICONV"; then |
| LIBS="$LIBS $LIBICONV" |
| AC_LINK_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[ |
| #include <libintl.h> |
| #ifndef __GNU_GETTEXT_SUPPORTED_REVISION |
| extern int _nl_msg_cat_cntr; |
| extern |
| #ifdef __cplusplus |
| "C" |
| #endif |
| const char *_nl_expand_alias (const char *); |
| #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias ("")) |
| #else |
| #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 |
| #endif |
| $gt_revision_test_code |
| ]], |
| [[ |
| bindtextdomain ("", ""); |
| return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION |
| ]])], |
| [LIBINTL="$LIBINTL $LIBICONV" |
| LTLIBINTL="$LTLIBINTL $LTLIBICONV" |
| eval "$gt_func_gnugettext_libintl=yes" |
| ]) |
| fi |
| CPPFLAGS="$gt_save_CPPFLAGS" |
| LIBS="$gt_save_LIBS"]) |
| fi |
| |
| dnl If an already present or preinstalled GNU gettext() is found, |
| dnl use it. But if this macro is used in GNU gettext, and GNU |
| dnl gettext is already preinstalled in libintl, we update this |
| dnl libintl. (Cf. the install rule in intl/Makefile.in.) |
| if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" = "yes"; } \ |
| || { { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; } \ |
| && test "$PACKAGE" != gettext-runtime \ |
| && test "$PACKAGE" != gettext-tools; }; then |
| gt_use_preinstalled_gnugettext=yes |
| else |
| dnl Reset the values set by searching for libintl. |
| LIBINTL= |
| LTLIBINTL= |
| INCINTL= |
| fi |
| |
| m4_if(gt_included_intl, yes, [ |
| if test "$gt_use_preinstalled_gnugettext" != "yes"; then |
| dnl GNU gettext is not found in the C library. |
| dnl Fall back on included GNU gettext library. |
| nls_cv_use_gnu_gettext=yes |
| fi |
| fi |
| |
| if test "$nls_cv_use_gnu_gettext" = "yes"; then |
| dnl Mark actions used to generate GNU NLS library. |
| BUILD_INCLUDED_LIBINTL=yes |
| USE_INCLUDED_LIBINTL=yes |
| LIBINTL="m4_if([$3],[],\${top_builddir}/intl,[$3])/libintl.la $LIBICONV $LIBTHREAD" |
| LTLIBINTL="m4_if([$3],[],\${top_builddir}/intl,[$3])/libintl.la $LTLIBICONV $LTLIBTHREAD" |
| LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` |
| fi |
| |
| CATOBJEXT= |
| if test "$gt_use_preinstalled_gnugettext" = "yes" \ |
| || test "$nls_cv_use_gnu_gettext" = "yes"; then |
| dnl Mark actions to use GNU gettext tools. |
| CATOBJEXT=.gmo |
| fi |
| ]) |
| |
| if test -n "$INTL_MACOSX_LIBS"; then |
| if test "$gt_use_preinstalled_gnugettext" = "yes" \ |
| || test "$nls_cv_use_gnu_gettext" = "yes"; then |
| dnl Some extra flags are needed during linking. |
| LIBINTL="$LIBINTL $INTL_MACOSX_LIBS" |
| LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS" |
| fi |
| fi |
| |
| if test "$gt_use_preinstalled_gnugettext" = "yes" \ |
| || test "$nls_cv_use_gnu_gettext" = "yes"; then |
| AC_DEFINE([ENABLE_NLS], [1], |
| [Define to 1 if translation of program messages to the user's native language |
| is requested.]) |
| else |
| USE_NLS=no |
| fi |
| fi |
| |
| AC_MSG_CHECKING([whether to use NLS]) |
| AC_MSG_RESULT([$USE_NLS]) |
| if test "$USE_NLS" = "yes"; then |
| AC_MSG_CHECKING([where the gettext function comes from]) |
| if test "$gt_use_preinstalled_gnugettext" = "yes"; then |
| if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then |
| gt_source="external libintl" |
| else |
| gt_source="libc" |
| fi |
| else |
| gt_source="included intl directory" |
| fi |
| AC_MSG_RESULT([$gt_source]) |
| fi |
| |
| if test "$USE_NLS" = "yes"; then |
| |
| if test "$gt_use_preinstalled_gnugettext" = "yes"; then |
| if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then |
| AC_MSG_CHECKING([how to link with libintl]) |
| AC_MSG_RESULT([$LIBINTL]) |
| AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL]) |
| fi |
| |
| dnl For backward compatibility. Some packages may be using this. |
| AC_DEFINE([HAVE_GETTEXT], [1], |
| [Define if the GNU gettext() function is already present or preinstalled.]) |
| AC_DEFINE([HAVE_DCGETTEXT], [1], |
| [Define if the GNU dcgettext() function is already present or preinstalled.]) |
| fi |
| |
| dnl We need to process the po/ directory. |
| POSUB=po |
| fi |
| |
| m4_if(gt_included_intl, yes, [ |
| dnl In GNU gettext we have to set BUILD_INCLUDED_LIBINTL to 'yes' |
| dnl because some of the testsuite requires it. |
| BUILD_INCLUDED_LIBINTL=yes |
| |
| dnl Make all variables we use known to autoconf. |
| AC_SUBST([BUILD_INCLUDED_LIBINTL]) |
| AC_SUBST([USE_INCLUDED_LIBINTL]) |
| AC_SUBST([CATOBJEXT]) |
| ]) |
| |
| dnl For backward compatibility. Some Makefiles may be using this. |
| INTLLIBS="$LIBINTL" |
| AC_SUBST([INTLLIBS]) |
| |
| dnl Make all documented variables known to autoconf. |
| AC_SUBST([LIBINTL]) |
| AC_SUBST([LTLIBINTL]) |
| AC_SUBST([POSUB]) |
| ]) |
| |
| |
| dnl gt_NEEDS_INIT ensures that the gt_needs variable is initialized. |
| m4_define([gt_NEEDS_INIT], |
| [ |
| m4_divert_text([DEFAULTS], [gt_needs=]) |
| m4_define([gt_NEEDS_INIT], []) |
| ]) |
| |
| |
| dnl Usage: AM_GNU_GETTEXT_NEED([NEEDSYMBOL]) |
| AC_DEFUN([AM_GNU_GETTEXT_NEED], |
| [ |
| m4_divert_text([INIT_PREPARE], [gt_needs="$gt_needs $1"]) |
| ]) |
| |
| |
| dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version]) |
| AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) |
| |
| |
| dnl Usage: AM_GNU_GETTEXT_REQUIRE_VERSION([gettext-version]) |
| AC_DEFUN([AM_GNU_GETTEXT_REQUIRE_VERSION], []) |
