5 kx # gettext.m4 serial 68 (gettext-0.19.8)
5 kx dnl Copyright (C) 1995-2014, 2016 Free Software Foundation, Inc.
5 kx dnl This file is free software; the Free Software Foundation
5 kx dnl gives unlimited permission to copy and/or distribute it,
5 kx dnl with or without modifications, as long as this notice is preserved.
5 kx dnl
5 kx dnl This file can be used in projects which are not available under
5 kx dnl the GNU General Public License or the GNU Library General Public
5 kx dnl License but which still want to provide support for the GNU gettext
5 kx dnl functionality.
5 kx dnl Please note that the actual code of the GNU gettext library is covered
5 kx dnl by the GNU Library General Public License, and the rest of the GNU
5 kx dnl gettext package is covered by the GNU General Public License.
5 kx dnl They are *not* in the public domain.
5 kx
5 kx dnl Authors:
5 kx dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
5 kx dnl Bruno Haible <haible@clisp.cons.org>, 2000-2006, 2008-2010.
5 kx
5 kx dnl Macro to add for using GNU gettext.
5 kx
5 kx dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
5 kx dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
5 kx dnl default (if it is not specified or empty) is 'no-libtool'.
5 kx dnl INTLSYMBOL should be 'external' for packages with no intl directory,
5 kx dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory.
5 kx dnl If INTLSYMBOL is 'use-libtool', then a libtool library
5 kx dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
5 kx dnl depending on --{enable,disable}-{shared,static} and on the presence of
5 kx dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
5 kx dnl $(top_builddir)/intl/libintl.a will be created.
5 kx dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
5 kx dnl implementations (in libc or libintl) without the ngettext() function
5 kx dnl will be ignored. If NEEDSYMBOL is specified and is
5 kx dnl 'need-formatstring-macros', then GNU gettext implementations that don't
5 kx dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
5 kx dnl INTLDIR is used to find the intl libraries. If empty,
5 kx dnl the value '$(top_builddir)/intl/' is used.
5 kx dnl
5 kx dnl The result of the configuration is one of three cases:
5 kx dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
5 kx dnl and used.
5 kx dnl Catalog format: GNU --> install in $(datadir)
5 kx dnl Catalog extension: .mo after installation, .gmo in source tree
5 kx dnl 2) GNU gettext has been found in the system's C library.
5 kx dnl Catalog format: GNU --> install in $(datadir)
5 kx dnl Catalog extension: .mo after installation, .gmo in source tree
5 kx dnl 3) No internationalization, always use English msgid.
5 kx dnl Catalog format: none
5 kx dnl Catalog extension: none
5 kx dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
5 kx dnl The use of .gmo is historical (it was needed to avoid overwriting the
5 kx dnl GNU format catalogs when building on a platform with an X/Open gettext),
5 kx dnl but we keep it in order not to force irrelevant filename changes on the
5 kx dnl maintainers.
5 kx dnl
5 kx AC_DEFUN([AM_GNU_GETTEXT],
5 kx [
5 kx dnl Argument checking.
5 kx ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
5 kx [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
5 kx ])])])])])
5 kx ifelse(ifelse([$1], [], [old])[]ifelse([$1], [no-libtool], [old]), [old],
5 kx [AC_DIAGNOSE([obsolete], [Use of AM_GNU_GETTEXT without [external] argument is deprecated.])])
5 kx ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
5 kx [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
5 kx ])])])])
5 kx define([gt_included_intl],
5 kx ifelse([$1], [external],
5 kx ifdef([AM_GNU_GETTEXT_][INTL_SUBDIR], [yes], [no]),
5 kx [yes]))
5 kx define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], []))
5 kx gt_NEEDS_INIT
5 kx AM_GNU_GETTEXT_NEED([$2])
5 kx
5 kx AC_REQUIRE([AM_PO_SUBDIRS])dnl
5 kx ifelse(gt_included_intl, yes, [
5 kx AC_REQUIRE([AM_INTL_SUBDIR])dnl
5 kx ])
5 kx
5 kx dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
5 kx AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
5 kx AC_REQUIRE([AC_LIB_RPATH])
5 kx
5 kx dnl Sometimes libintl requires libiconv, so first search for libiconv.
5 kx dnl Ideally we would do this search only after the
5 kx dnl if test "$USE_NLS" = "yes"; then
5 kx dnl if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then
5 kx dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
5 kx dnl the configure script would need to contain the same shell code
5 kx dnl again, outside any 'if'. There are two solutions:
5 kx dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
5 kx dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
5 kx dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
5 kx dnl documented, we avoid it.
5 kx ifelse(gt_included_intl, yes, , [
5 kx AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
5 kx ])
5 kx
5 kx dnl Sometimes, on Mac OS X, libintl requires linking with CoreFoundation.
5 kx gt_INTL_MACOSX
5 kx
5 kx dnl Set USE_NLS.
5 kx AC_REQUIRE([AM_NLS])
5 kx
5 kx ifelse(gt_included_intl, yes, [
5 kx BUILD_INCLUDED_LIBINTL=no
5 kx USE_INCLUDED_LIBINTL=no
5 kx ])
5 kx LIBINTL=
5 kx LTLIBINTL=
5 kx POSUB=
5 kx
5 kx dnl Add a version number to the cache macros.
5 kx case " $gt_needs " in
5 kx *" need-formatstring-macros "*) gt_api_version=3 ;;
5 kx *" need-ngettext "*) gt_api_version=2 ;;
5 kx *) gt_api_version=1 ;;
5 kx esac
5 kx gt_func_gnugettext_libc="gt_cv_func_gnugettext${gt_api_version}_libc"
5 kx gt_func_gnugettext_libintl="gt_cv_func_gnugettext${gt_api_version}_libintl"
5 kx
5 kx dnl If we use NLS figure out what method
5 kx if test "$USE_NLS" = "yes"; then
5 kx gt_use_preinstalled_gnugettext=no
5 kx ifelse(gt_included_intl, yes, [
5 kx AC_MSG_CHECKING([whether included gettext is requested])
5 kx AC_ARG_WITH([included-gettext],
5 kx [ --with-included-gettext use the GNU gettext library included here],
5 kx nls_cv_force_use_gnu_gettext=$withval,
5 kx nls_cv_force_use_gnu_gettext=no)
5 kx AC_MSG_RESULT([$nls_cv_force_use_gnu_gettext])
5 kx
5 kx nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
5 kx if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
5 kx ])
5 kx dnl User does not insist on using GNU NLS library. Figure out what
5 kx dnl to use. If GNU gettext is available we use this. Else we have
5 kx dnl to fall back to GNU NLS library.
5 kx
5 kx if test $gt_api_version -ge 3; then
5 kx gt_revision_test_code='
5 kx #ifndef __GNU_GETTEXT_SUPPORTED_REVISION
5 kx #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
5 kx #endif
5 kx changequote(,)dnl
5 kx typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
5 kx changequote([,])dnl
5 kx '
5 kx else
5 kx gt_revision_test_code=
5 kx fi
5 kx if test $gt_api_version -ge 2; then
5 kx gt_expression_test_code=' + * ngettext ("", "", 0)'
5 kx else
5 kx gt_expression_test_code=
5 kx fi
5 kx
5 kx AC_CACHE_CHECK([for GNU gettext in libc], [$gt_func_gnugettext_libc],
5 kx [AC_LINK_IFELSE(
5 kx [AC_LANG_PROGRAM(
5 kx [[
5 kx #include <libintl.h>
5 kx #ifndef __GNU_GETTEXT_SUPPORTED_REVISION
5 kx extern int _nl_msg_cat_cntr;
5 kx extern int *_nl_domain_bindings;
5 kx #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_domain_bindings)
5 kx #else
5 kx #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
5 kx #endif
5 kx $gt_revision_test_code
5 kx ]],
5 kx [[
5 kx bindtextdomain ("", "");
5 kx return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION
5 kx ]])],
5 kx [eval "$gt_func_gnugettext_libc=yes"],
5 kx [eval "$gt_func_gnugettext_libc=no"])])
5 kx
5 kx if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then
5 kx dnl Sometimes libintl requires libiconv, so first search for libiconv.
5 kx ifelse(gt_included_intl, yes, , [
5 kx AM_ICONV_LINK
5 kx ])
5 kx dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
5 kx dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
5 kx dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
5 kx dnl even if libiconv doesn't exist.
5 kx AC_LIB_LINKFLAGS_BODY([intl])
5 kx AC_CACHE_CHECK([for GNU gettext in libintl],
5 kx [$gt_func_gnugettext_libintl],
5 kx [gt_save_CPPFLAGS="$CPPFLAGS"
5 kx CPPFLAGS="$CPPFLAGS $INCINTL"
5 kx gt_save_LIBS="$LIBS"
5 kx LIBS="$LIBS $LIBINTL"
5 kx dnl Now see whether libintl exists and does not depend on libiconv.
5 kx AC_LINK_IFELSE(
5 kx [AC_LANG_PROGRAM(
5 kx [[
5 kx #include <libintl.h>
5 kx #ifndef __GNU_GETTEXT_SUPPORTED_REVISION
5 kx extern int _nl_msg_cat_cntr;
5 kx extern
5 kx #ifdef __cplusplus
5 kx "C"
5 kx #endif
5 kx const char *_nl_expand_alias (const char *);
5 kx #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias (""))
5 kx #else
5 kx #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
5 kx #endif
5 kx $gt_revision_test_code
5 kx ]],
5 kx [[
5 kx bindtextdomain ("", "");
5 kx return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION
5 kx ]])],
5 kx [eval "$gt_func_gnugettext_libintl=yes"],
5 kx [eval "$gt_func_gnugettext_libintl=no"])
5 kx dnl Now see whether libintl exists and depends on libiconv.
5 kx if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" != yes; } && test -n "$LIBICONV"; then
5 kx LIBS="$LIBS $LIBICONV"
5 kx AC_LINK_IFELSE(
5 kx [AC_LANG_PROGRAM(
5 kx [[
5 kx #include <libintl.h>
5 kx #ifndef __GNU_GETTEXT_SUPPORTED_REVISION
5 kx extern int _nl_msg_cat_cntr;
5 kx extern
5 kx #ifdef __cplusplus
5 kx "C"
5 kx #endif
5 kx const char *_nl_expand_alias (const char *);
5 kx #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias (""))
5 kx #else
5 kx #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
5 kx #endif
5 kx $gt_revision_test_code
5 kx ]],
5 kx [[
5 kx bindtextdomain ("", "");
5 kx return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION
5 kx ]])],
5 kx [LIBINTL="$LIBINTL $LIBICONV"
5 kx LTLIBINTL="$LTLIBINTL $LTLIBICONV"
5 kx eval "$gt_func_gnugettext_libintl=yes"
5 kx ])
5 kx fi
5 kx CPPFLAGS="$gt_save_CPPFLAGS"
5 kx LIBS="$gt_save_LIBS"])
5 kx fi
5 kx
5 kx dnl If an already present or preinstalled GNU gettext() is found,
5 kx dnl use it. But if this macro is used in GNU gettext, and GNU
5 kx dnl gettext is already preinstalled in libintl, we update this
5 kx dnl libintl. (Cf. the install rule in intl/Makefile.in.)
5 kx if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" = "yes"; } \
5 kx || { { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; } \
5 kx && test "$PACKAGE" != gettext-runtime \
5 kx && test "$PACKAGE" != gettext-tools; }; then
5 kx gt_use_preinstalled_gnugettext=yes
5 kx else
5 kx dnl Reset the values set by searching for libintl.
5 kx LIBINTL=
5 kx LTLIBINTL=
5 kx INCINTL=
5 kx fi
5 kx
5 kx ifelse(gt_included_intl, yes, [
5 kx if test "$gt_use_preinstalled_gnugettext" != "yes"; then
5 kx dnl GNU gettext is not found in the C library.
5 kx dnl Fall back on included GNU gettext library.
5 kx nls_cv_use_gnu_gettext=yes
5 kx fi
5 kx fi
5 kx
5 kx if test "$nls_cv_use_gnu_gettext" = "yes"; then
5 kx dnl Mark actions used to generate GNU NLS library.
5 kx BUILD_INCLUDED_LIBINTL=yes
5 kx USE_INCLUDED_LIBINTL=yes
5 kx LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV $LIBTHREAD"
5 kx LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV $LTLIBTHREAD"
5 kx LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
5 kx fi
5 kx
5 kx CATOBJEXT=
5 kx if test "$gt_use_preinstalled_gnugettext" = "yes" \
5 kx || test "$nls_cv_use_gnu_gettext" = "yes"; then
5 kx dnl Mark actions to use GNU gettext tools.
5 kx CATOBJEXT=.gmo
5 kx fi
5 kx ])
5 kx
5 kx if test -n "$INTL_MACOSX_LIBS"; then
5 kx if test "$gt_use_preinstalled_gnugettext" = "yes" \
5 kx || test "$nls_cv_use_gnu_gettext" = "yes"; then
5 kx dnl Some extra flags are needed during linking.
5 kx LIBINTL="$LIBINTL $INTL_MACOSX_LIBS"
5 kx LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS"
5 kx fi
5 kx fi
5 kx
5 kx if test "$gt_use_preinstalled_gnugettext" = "yes" \
5 kx || test "$nls_cv_use_gnu_gettext" = "yes"; then
5 kx AC_DEFINE([ENABLE_NLS], [1],
5 kx [Define to 1 if translation of program messages to the user's native language
5 kx is requested.])
5 kx else
5 kx USE_NLS=no
5 kx fi
5 kx fi
5 kx
5 kx AC_MSG_CHECKING([whether to use NLS])
5 kx AC_MSG_RESULT([$USE_NLS])
5 kx if test "$USE_NLS" = "yes"; then
5 kx AC_MSG_CHECKING([where the gettext function comes from])
5 kx if test "$gt_use_preinstalled_gnugettext" = "yes"; then
5 kx if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then
5 kx gt_source="external libintl"
5 kx else
5 kx gt_source="libc"
5 kx fi
5 kx else
5 kx gt_source="included intl directory"
5 kx fi
5 kx AC_MSG_RESULT([$gt_source])
5 kx fi
5 kx
5 kx if test "$USE_NLS" = "yes"; then
5 kx
5 kx if test "$gt_use_preinstalled_gnugettext" = "yes"; then
5 kx if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then
5 kx AC_MSG_CHECKING([how to link with libintl])
5 kx AC_MSG_RESULT([$LIBINTL])
5 kx AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
5 kx fi
5 kx
5 kx dnl For backward compatibility. Some packages may be using this.
5 kx AC_DEFINE([HAVE_GETTEXT], [1],
5 kx [Define if the GNU gettext() function is already present or preinstalled.])
5 kx AC_DEFINE([HAVE_DCGETTEXT], [1],
5 kx [Define if the GNU dcgettext() function is already present or preinstalled.])
5 kx fi
5 kx
5 kx dnl We need to process the po/ directory.
5 kx POSUB=po
5 kx fi
5 kx
5 kx ifelse(gt_included_intl, yes, [
5 kx dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
5 kx dnl to 'yes' because some of the testsuite requires it.
5 kx if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
5 kx BUILD_INCLUDED_LIBINTL=yes
5 kx fi
5 kx
5 kx dnl Make all variables we use known to autoconf.
5 kx AC_SUBST([BUILD_INCLUDED_LIBINTL])
5 kx AC_SUBST([USE_INCLUDED_LIBINTL])
5 kx AC_SUBST([CATOBJEXT])
5 kx
5 kx dnl For backward compatibility. Some configure.ins may be using this.
5 kx nls_cv_header_intl=
5 kx nls_cv_header_libgt=
5 kx
5 kx dnl For backward compatibility. Some Makefiles may be using this.
5 kx DATADIRNAME=share
5 kx AC_SUBST([DATADIRNAME])
5 kx
5 kx dnl For backward compatibility. Some Makefiles may be using this.
5 kx INSTOBJEXT=.mo
5 kx AC_SUBST([INSTOBJEXT])
5 kx
5 kx dnl For backward compatibility. Some Makefiles may be using this.
5 kx GENCAT=gencat
5 kx AC_SUBST([GENCAT])
5 kx
5 kx dnl For backward compatibility. Some Makefiles may be using this.
5 kx INTLOBJS=
5 kx if test "$USE_INCLUDED_LIBINTL" = yes; then
5 kx INTLOBJS="\$(GETTOBJS)"
5 kx fi
5 kx AC_SUBST([INTLOBJS])
5 kx
5 kx dnl Enable libtool support if the surrounding package wishes it.
5 kx INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
5 kx AC_SUBST([INTL_LIBTOOL_SUFFIX_PREFIX])
5 kx ])
5 kx
5 kx dnl For backward compatibility. Some Makefiles may be using this.
5 kx INTLLIBS="$LIBINTL"
5 kx AC_SUBST([INTLLIBS])
5 kx
5 kx dnl Make all documented variables known to autoconf.
5 kx AC_SUBST([LIBINTL])
5 kx AC_SUBST([LTLIBINTL])
5 kx AC_SUBST([POSUB])
5 kx ])
5 kx
5 kx
5 kx dnl gt_NEEDS_INIT ensures that the gt_needs variable is initialized.
5 kx m4_define([gt_NEEDS_INIT],
5 kx [
5 kx m4_divert_text([DEFAULTS], [gt_needs=])
5 kx m4_define([gt_NEEDS_INIT], [])
5 kx ])
5 kx
5 kx
5 kx dnl Usage: AM_GNU_GETTEXT_NEED([NEEDSYMBOL])
5 kx AC_DEFUN([AM_GNU_GETTEXT_NEED],
5 kx [
5 kx m4_divert_text([INIT_PREPARE], [gt_needs="$gt_needs $1"])
5 kx ])
5 kx
5 kx
5 kx dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
5 kx AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])
5 kx
5 kx
5 kx dnl Usage: AM_GNU_GETTEXT_REQUIRE_VERSION([gettext-version])
5 kx AC_DEFUN([AM_GNU_GETTEXT_REQUIRE_VERSION], [])
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