1
# gettext.m4 serial 60 (gettext-0.17)
2
dnl Copyright (C) 1995-2007 Free Software Foundation, Inc.
3
dnl This file is free software; the Free Software Foundation
4
dnl gives unlimited permission to copy and/or distribute it,
5
dnl with or without modifications, as long as this notice is preserved.
7
dnl This file can can be used in projects which are not available under
8
dnl the GNU General Public License or the GNU Library General Public
9
dnl License but which still want to provide support for the GNU gettext
11
dnl Please note that the actual code of the GNU gettext library is covered
12
dnl by the GNU Library General Public License, and the rest of the GNU
13
dnl gettext package package is covered by the GNU General Public License.
14
dnl They are *not* in the public domain.
17
dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
18
dnl Bruno Haible <haible@clisp.cons.org>, 2000-2006.
20
dnl Macro to add for using GNU gettext.
22
dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
23
dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
24
dnl default (if it is not specified or empty) is 'no-libtool'.
25
dnl INTLSYMBOL should be 'external' for packages with no intl directory,
26
dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory.
27
dnl If INTLSYMBOL is 'use-libtool', then a libtool library
28
dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
29
dnl depending on --{enable,disable}-{shared,static} and on the presence of
30
dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
31
dnl $(top_builddir)/intl/libintl.a will be created.
32
dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
33
dnl implementations (in libc or libintl) without the ngettext() function
34
dnl will be ignored. If NEEDSYMBOL is specified and is
35
dnl 'need-formatstring-macros', then GNU gettext implementations that don't
36
dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
37
dnl INTLDIR is used to find the intl libraries. If empty,
38
dnl the value `$(top_builddir)/intl/' is used.
40
dnl The result of the configuration is one of three cases:
41
dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
43
dnl Catalog format: GNU --> install in $(datadir)
44
dnl Catalog extension: .mo after installation, .gmo in source tree
45
dnl 2) GNU gettext has been found in the system's C library.
46
dnl Catalog format: GNU --> install in $(datadir)
47
dnl Catalog extension: .mo after installation, .gmo in source tree
48
dnl 3) No internationalization, always use English msgid.
49
dnl Catalog format: none
50
dnl Catalog extension: none
51
dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
52
dnl The use of .gmo is historical (it was needed to avoid overwriting the
53
dnl GNU format catalogs when building on a platform with an X/Open gettext),
54
dnl but we keep it in order not to force irrelevant filename changes on the
57
AC_DEFUN([AM_GNU_GETTEXT],
59
dnl Argument checking.
60
ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
61
[errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
63
ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
64
[errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
66
define([gt_included_intl],
67
ifelse([$1], [external],
68
ifdef([AM_GNU_GETTEXT_][INTL_SUBDIR], [yes], [no]),
70
define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], []))
72
AM_GNU_GETTEXT_NEED([$2])
74
AC_REQUIRE([AM_PO_SUBDIRS])dnl
75
ifelse(gt_included_intl, yes, [
76
AC_REQUIRE([AM_INTL_SUBDIR])dnl
79
dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
80
AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
81
AC_REQUIRE([AC_LIB_RPATH])
83
dnl Sometimes libintl requires libiconv, so first search for libiconv.
84
dnl Ideally we would do this search only after the
85
dnl if test "$USE_NLS" = "yes"; then
86
dnl if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then
87
dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
88
dnl the configure script would need to contain the same shell code
89
dnl again, outside any 'if'. There are two solutions:
90
dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
91
dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
92
dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
93
dnl documented, we avoid it.
94
ifelse(gt_included_intl, yes, , [
95
AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
98
dnl Sometimes, on MacOS X, libintl requires linking with CoreFoundation.
104
ifelse(gt_included_intl, yes, [
105
BUILD_INCLUDED_LIBINTL=no
106
USE_INCLUDED_LIBINTL=no
112
dnl Add a version number to the cache macros.
113
case " $gt_needs " in
114
*" need-formatstring-macros "*) gt_api_version=3 ;;
115
*" need-ngettext "*) gt_api_version=2 ;;
116
*) gt_api_version=1 ;;
118
gt_func_gnugettext_libc="gt_cv_func_gnugettext${gt_api_version}_libc"
119
gt_func_gnugettext_libintl="gt_cv_func_gnugettext${gt_api_version}_libintl"
121
dnl If we use NLS figure out what method
122
if test "$USE_NLS" = "yes"; then
123
gt_use_preinstalled_gnugettext=no
124
ifelse(gt_included_intl, yes, [
125
AC_MSG_CHECKING([whether included gettext is requested])
126
AC_ARG_WITH(included-gettext,
127
[ --with-included-gettext use the GNU gettext library included here],
128
nls_cv_force_use_gnu_gettext=$withval,
129
nls_cv_force_use_gnu_gettext=no)
130
AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
132
nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
133
if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
135
dnl User does not insist on using GNU NLS library. Figure out what
136
dnl to use. If GNU gettext is available we use this. Else we have
137
dnl to fall back to GNU NLS library.
139
if test $gt_api_version -ge 3; then
140
gt_revision_test_code='
141
#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
142
#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
145
typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
149
gt_revision_test_code=
151
if test $gt_api_version -ge 2; then
152
gt_expression_test_code=' + * ngettext ("", "", 0)'
154
gt_expression_test_code=
157
AC_CACHE_CHECK([for GNU gettext in libc], [$gt_func_gnugettext_libc],
158
[AC_TRY_LINK([#include <libintl.h>
159
$gt_revision_test_code
160
extern int _nl_msg_cat_cntr;
161
extern int *_nl_domain_bindings;],
162
[bindtextdomain ("", "");
163
return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_domain_bindings],
164
[eval "$gt_func_gnugettext_libc=yes"],
165
[eval "$gt_func_gnugettext_libc=no"])])
167
if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then
168
dnl Sometimes libintl requires libiconv, so first search for libiconv.
169
ifelse(gt_included_intl, yes, , [
172
dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
173
dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
174
dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
175
dnl even if libiconv doesn't exist.
176
AC_LIB_LINKFLAGS_BODY([intl])
177
AC_CACHE_CHECK([for GNU gettext in libintl],
178
[$gt_func_gnugettext_libintl],
179
[gt_save_CPPFLAGS="$CPPFLAGS"
180
CPPFLAGS="$CPPFLAGS $INCINTL"
182
LIBS="$LIBS $LIBINTL"
183
dnl Now see whether libintl exists and does not depend on libiconv.
184
AC_TRY_LINK([#include <libintl.h>
185
$gt_revision_test_code
186
extern int _nl_msg_cat_cntr;
191
const char *_nl_expand_alias (const char *);],
192
[bindtextdomain ("", "");
193
return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_expand_alias ("")],
194
[eval "$gt_func_gnugettext_libintl=yes"],
195
[eval "$gt_func_gnugettext_libintl=no"])
196
dnl Now see whether libintl exists and depends on libiconv.
197
if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" != yes; } && test -n "$LIBICONV"; then
198
LIBS="$LIBS $LIBICONV"
199
AC_TRY_LINK([#include <libintl.h>
200
$gt_revision_test_code
201
extern int _nl_msg_cat_cntr;
206
const char *_nl_expand_alias (const char *);],
207
[bindtextdomain ("", "");
208
return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_expand_alias ("")],
209
[LIBINTL="$LIBINTL $LIBICONV"
210
LTLIBINTL="$LTLIBINTL $LTLIBICONV"
211
eval "$gt_func_gnugettext_libintl=yes"
214
CPPFLAGS="$gt_save_CPPFLAGS"
215
LIBS="$gt_save_LIBS"])
218
dnl If an already present or preinstalled GNU gettext() is found,
219
dnl use it. But if this macro is used in GNU gettext, and GNU
220
dnl gettext is already preinstalled in libintl, we update this
221
dnl libintl. (Cf. the install rule in intl/Makefile.in.)
222
if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" = "yes"; } \
223
|| { { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; } \
224
&& test "$PACKAGE" != gettext-runtime \
225
&& test "$PACKAGE" != gettext-tools; }; then
226
gt_use_preinstalled_gnugettext=yes
228
dnl Reset the values set by searching for libintl.
234
ifelse(gt_included_intl, yes, [
235
if test "$gt_use_preinstalled_gnugettext" != "yes"; then
236
dnl GNU gettext is not found in the C library.
237
dnl Fall back on included GNU gettext library.
238
nls_cv_use_gnu_gettext=yes
242
if test "$nls_cv_use_gnu_gettext" = "yes"; then
243
dnl Mark actions used to generate GNU NLS library.
244
BUILD_INCLUDED_LIBINTL=yes
245
USE_INCLUDED_LIBINTL=yes
246
LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV $LIBTHREAD"
247
LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV $LTLIBTHREAD"
248
LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
252
if test "$gt_use_preinstalled_gnugettext" = "yes" \
253
|| test "$nls_cv_use_gnu_gettext" = "yes"; then
254
dnl Mark actions to use GNU gettext tools.
259
if test -n "$INTL_MACOSX_LIBS"; then
260
if test "$gt_use_preinstalled_gnugettext" = "yes" \
261
|| test "$nls_cv_use_gnu_gettext" = "yes"; then
262
dnl Some extra flags are needed during linking.
263
LIBINTL="$LIBINTL $INTL_MACOSX_LIBS"
264
LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS"
268
if test "$gt_use_preinstalled_gnugettext" = "yes" \
269
|| test "$nls_cv_use_gnu_gettext" = "yes"; then
270
AC_DEFINE(ENABLE_NLS, 1,
271
[Define to 1 if translation of program messages to the user's native language
278
AC_MSG_CHECKING([whether to use NLS])
279
AC_MSG_RESULT([$USE_NLS])
280
if test "$USE_NLS" = "yes"; then
281
AC_MSG_CHECKING([where the gettext function comes from])
282
if test "$gt_use_preinstalled_gnugettext" = "yes"; then
283
if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then
284
gt_source="external libintl"
289
gt_source="included intl directory"
291
AC_MSG_RESULT([$gt_source])
294
if test "$USE_NLS" = "yes"; then
296
if test "$gt_use_preinstalled_gnugettext" = "yes"; then
297
if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then
298
AC_MSG_CHECKING([how to link with libintl])
299
AC_MSG_RESULT([$LIBINTL])
300
AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
303
dnl For backward compatibility. Some packages may be using this.
304
AC_DEFINE(HAVE_GETTEXT, 1,
305
[Define if the GNU gettext() function is already present or preinstalled.])
306
AC_DEFINE(HAVE_DCGETTEXT, 1,
307
[Define if the GNU dcgettext() function is already present or preinstalled.])
310
dnl We need to process the po/ directory.
314
ifelse(gt_included_intl, yes, [
315
dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
316
dnl to 'yes' because some of the testsuite requires it.
317
if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
318
BUILD_INCLUDED_LIBINTL=yes
321
dnl Make all variables we use known to autoconf.
322
AC_SUBST(BUILD_INCLUDED_LIBINTL)
323
AC_SUBST(USE_INCLUDED_LIBINTL)
326
dnl For backward compatibility. Some configure.ins may be using this.
330
dnl For backward compatibility. Some Makefiles may be using this.
332
AC_SUBST(DATADIRNAME)
334
dnl For backward compatibility. Some Makefiles may be using this.
338
dnl For backward compatibility. Some Makefiles may be using this.
342
dnl For backward compatibility. Some Makefiles may be using this.
344
if test "$USE_INCLUDED_LIBINTL" = yes; then
345
INTLOBJS="\$(GETTOBJS)"
349
dnl Enable libtool support if the surrounding package wishes it.
350
INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
351
AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
354
dnl For backward compatibility. Some Makefiles may be using this.
358
dnl Make all documented variables known to autoconf.
365
dnl gt_NEEDS_INIT ensures that the gt_needs variable is initialized.
366
m4_define([gt_NEEDS_INIT],
368
m4_divert_text([DEFAULTS], [gt_needs=])
369
m4_define([gt_NEEDS_INIT], [])
373
dnl Usage: AM_GNU_GETTEXT_NEED([NEEDSYMBOL])
374
AC_DEFUN([AM_GNU_GETTEXT_NEED],
376
m4_divert_text([INIT_PREPARE], [gt_needs="$gt_needs $1"])
380
dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
381
AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])