1# gettext.m4 serial 52 (gettext-0.15)
2dnl Copyright (C) 1995-2006 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6dnl
7dnl This file can can be used in projects which are not available under
8dnl the GNU General Public License or the GNU Library General Public
9dnl License but which still want to provide support for the GNU gettext
10dnl functionality.
11dnl Please note that the actual code of the GNU gettext library is covered
12dnl by the GNU Library General Public License, and the rest of the GNU
13dnl gettext package package is covered by the GNU General Public License.
14dnl They are *not* in the public domain.
15
16dnl Authors:
17dnl   Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
18dnl   Bruno Haible <haible@clisp.cons.org>, 2000-2005.
19
20dnl Macro to add for using GNU gettext.
21
22dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
23dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
24dnl    default (if it is not specified or empty) is 'no-libtool'.
25dnl    INTLSYMBOL should be 'external' for packages with no intl directory,
26dnl    and 'no-libtool' or 'use-libtool' for packages with an intl directory.
27dnl    If INTLSYMBOL is 'use-libtool', then a libtool library
28dnl    $(top_builddir)/intl/libintl.la will be created (shared and/or static,
29dnl    depending on --{enable,disable}-{shared,static} and on the presence of
30dnl    AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
31dnl    $(top_builddir)/intl/libintl.a will be created.
32dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
33dnl    implementations (in libc or libintl) without the ngettext() function
34dnl    will be ignored.  If NEEDSYMBOL is specified and is
35dnl    'need-formatstring-macros', then GNU gettext implementations that don't
36dnl    support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
37dnl INTLDIR is used to find the intl libraries.  If empty,
38dnl    the value `$(top_builddir)/intl/' is used.
39dnl
40dnl The result of the configuration is one of three cases:
41dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
42dnl    and used.
43dnl    Catalog format: GNU --> install in $(datadir)
44dnl    Catalog extension: .mo after installation, .gmo in source tree
45dnl 2) GNU gettext has been found in the system's C library.
46dnl    Catalog format: GNU --> install in $(datadir)
47dnl    Catalog extension: .mo after installation, .gmo in source tree
48dnl 3) No internationalization, always use English msgid.
49dnl    Catalog format: none
50dnl    Catalog extension: none
51dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
52dnl The use of .gmo is historical (it was needed to avoid overwriting the
53dnl GNU format catalogs when building on a platform with an X/Open gettext),
54dnl but we keep it in order not to force irrelevant filename changes on the
55dnl maintainers.
56dnl
57AC_DEFUN([AM_GNU_GETTEXT],
58[
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
62])])])])])
63  ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
64    [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
65])])])])
66  define([gt_included_intl], ifelse([$1], [external], [no], [yes]))
67  define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], []))
68
69  AC_REQUIRE([AM_PO_SUBDIRS])dnl
70  ifelse(gt_included_intl, yes, [
71    AC_REQUIRE([AM_INTL_SUBDIR])dnl
72  ])
73
74  dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
75  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
76  AC_REQUIRE([AC_LIB_RPATH])
77
78  dnl Sometimes libintl requires libiconv, so first search for libiconv.
79  dnl Ideally we would do this search only after the
80  dnl      if test "$USE_NLS" = "yes"; then
81  dnl        if test "$gt_cv_func_gnugettext_libc" != "yes"; then
82  dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
83  dnl the configure script would need to contain the same shell code
84  dnl again, outside any 'if'. There are two solutions:
85  dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
86  dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
87  dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
88  dnl documented, we avoid it.
89  ifelse(gt_included_intl, yes, , [
90    AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
91  ])
92
93  dnl Sometimes, on MacOS X, libintl requires linking with CoreFoundation.
94  gt_INTL_MACOSX
95
96  dnl Set USE_NLS.
97  AC_REQUIRE([AM_NLS])
98
99  ifelse(gt_included_intl, yes, [
100    BUILD_INCLUDED_LIBINTL=no
101    USE_INCLUDED_LIBINTL=no
102  ])
103  LIBINTL=
104  LTLIBINTL=
105  POSUB=
106
107  dnl If we use NLS figure out what method
108  if test "$USE_NLS" = "yes"; then
109    gt_use_preinstalled_gnugettext=no
110    ifelse(gt_included_intl, yes, [
111      AC_MSG_CHECKING([whether included gettext is requested])
112      AC_ARG_WITH(included-gettext,
113        [  --with-included-gettext use the GNU gettext library included here],
114        nls_cv_force_use_gnu_gettext=$withval,
115        nls_cv_force_use_gnu_gettext=no)
116      AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
117
118      nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
119      if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
120    ])
121        dnl User does not insist on using GNU NLS library.  Figure out what
122        dnl to use.  If GNU gettext is available we use this.  Else we have
123        dnl to fall back to GNU NLS library.
124
125        dnl Add a version number to the cache macros.
126        define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
127        define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
128        define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
129
130        AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
131         [AC_TRY_LINK([#include <libintl.h>
132]ifelse([$2], [need-formatstring-macros],
133[[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
134#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
135#endif
136typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
137]], [])[extern int _nl_msg_cat_cntr;
138extern int *_nl_domain_bindings;],
139            [bindtextdomain ("", "");
140return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
141            gt_cv_func_gnugettext_libc=yes,
142            gt_cv_func_gnugettext_libc=no)])
143
144        if test "$gt_cv_func_gnugettext_libc" != "yes"; then
145          dnl Sometimes libintl requires libiconv, so first search for libiconv.
146          ifelse(gt_included_intl, yes, , [
147            AM_ICONV_LINK
148          ])
149          dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
150          dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
151          dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
152          dnl even if libiconv doesn't exist.
153          AC_LIB_LINKFLAGS_BODY([intl])
154          AC_CACHE_CHECK([for GNU gettext in libintl],
155            gt_cv_func_gnugettext_libintl,
156           [gt_save_CPPFLAGS="$CPPFLAGS"
157            CPPFLAGS="$CPPFLAGS $INCINTL"
158            gt_save_LIBS="$LIBS"
159            LIBS="$LIBS $LIBINTL"
160            dnl Now see whether libintl exists and does not depend on libiconv.
161            AC_TRY_LINK([#include <libintl.h>
162]ifelse([$2], [need-formatstring-macros],
163[[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
164#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
165#endif
166typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
167]], [])[extern int _nl_msg_cat_cntr;
168extern
169#ifdef __cplusplus
170"C"
171#endif
172const char *_nl_expand_alias (const char *);],
173              [bindtextdomain ("", "");
174return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias ("")],
175              gt_cv_func_gnugettext_libintl=yes,
176              gt_cv_func_gnugettext_libintl=no)
177            dnl Now see whether libintl exists and depends on libiconv.
178            if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
179              LIBS="$LIBS $LIBICONV"
180              AC_TRY_LINK([#include <libintl.h>
181]ifelse([$2], [need-formatstring-macros],
182[[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
183#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
184#endif
185typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
186]], [])[extern int _nl_msg_cat_cntr;
187extern
188#ifdef __cplusplus
189"C"
190#endif
191const char *_nl_expand_alias (const char *);],
192                [bindtextdomain ("", "");
193return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias ("")],
194               [LIBINTL="$LIBINTL $LIBICONV"
195                LTLIBINTL="$LTLIBINTL $LTLIBICONV"
196                gt_cv_func_gnugettext_libintl=yes
197               ])
198            fi
199            CPPFLAGS="$gt_save_CPPFLAGS"
200            LIBS="$gt_save_LIBS"])
201        fi
202
203        dnl If an already present or preinstalled GNU gettext() is found,
204        dnl use it.  But if this macro is used in GNU gettext, and GNU
205        dnl gettext is already preinstalled in libintl, we update this
206        dnl libintl.  (Cf. the install rule in intl/Makefile.in.)
207        if test "$gt_cv_func_gnugettext_libc" = "yes" \
208           || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
209                && test "$PACKAGE" != gettext-runtime \
210                && test "$PACKAGE" != gettext-tools; }; then
211          gt_use_preinstalled_gnugettext=yes
212        else
213          dnl Reset the values set by searching for libintl.
214          LIBINTL=
215          LTLIBINTL=
216          INCINTL=
217        fi
218
219    ifelse(gt_included_intl, yes, [
220        if test "$gt_use_preinstalled_gnugettext" != "yes"; then
221          dnl GNU gettext is not found in the C library.
222          dnl Fall back on included GNU gettext library.
223          nls_cv_use_gnu_gettext=yes
224        fi
225      fi
226
227      if test "$nls_cv_use_gnu_gettext" = "yes"; then
228        dnl Mark actions used to generate GNU NLS library.
229        BUILD_INCLUDED_LIBINTL=yes
230        USE_INCLUDED_LIBINTL=yes
231        LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV $LIBTHREAD"
232        LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV $LTLIBTHREAD"
233        LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
234      fi
235
236      CATOBJEXT=
237      if test "$gt_use_preinstalled_gnugettext" = "yes" \
238         || test "$nls_cv_use_gnu_gettext" = "yes"; then
239        dnl Mark actions to use GNU gettext tools.
240        CATOBJEXT=.gmo
241      fi
242    ])
243
244    if test -n "$INTL_MACOSX_LIBS"; then
245      if test "$gt_use_preinstalled_gnugettext" = "yes" \
246         || test "$nls_cv_use_gnu_gettext" = "yes"; then
247        dnl Some extra flags are needed during linking.
248        LIBINTL="$LIBINTL $INTL_MACOSX_LIBS"
249        LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS"
250      fi
251    fi
252
253    if test "$gt_use_preinstalled_gnugettext" = "yes" \
254       || test "$nls_cv_use_gnu_gettext" = "yes"; then
255      AC_DEFINE(ENABLE_NLS, 1,
256        [Define to 1 if translation of program messages to the user's native language
257   is requested.])
258    else
259      USE_NLS=no
260    fi
261  fi
262
263  AC_MSG_CHECKING([whether to use NLS])
264  AC_MSG_RESULT([$USE_NLS])
265  if test "$USE_NLS" = "yes"; then
266    AC_MSG_CHECKING([where the gettext function comes from])
267    if test "$gt_use_preinstalled_gnugettext" = "yes"; then
268      if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
269        gt_source="external libintl"
270      else
271        gt_source="libc"
272      fi
273    else
274      gt_source="included intl directory"
275    fi
276    AC_MSG_RESULT([$gt_source])
277  fi
278
279  if test "$USE_NLS" = "yes"; then
280
281    if test "$gt_use_preinstalled_gnugettext" = "yes"; then
282      if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
283        AC_MSG_CHECKING([how to link with libintl])
284        AC_MSG_RESULT([$LIBINTL])
285        AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
286      fi
287
288      dnl For backward compatibility. Some packages may be using this.
289      AC_DEFINE(HAVE_GETTEXT, 1,
290       [Define if the GNU gettext() function is already present or preinstalled.])
291      AC_DEFINE(HAVE_DCGETTEXT, 1,
292       [Define if the GNU dcgettext() function is already present or preinstalled.])
293    fi
294
295    dnl We need to process the po/ directory.
296    POSUB=po
297  fi
298
299  ifelse(gt_included_intl, yes, [
300    dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
301    dnl to 'yes' because some of the testsuite requires it.
302    if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
303      BUILD_INCLUDED_LIBINTL=yes
304    fi
305
306    dnl Make all variables we use known to autoconf.
307    AC_SUBST(BUILD_INCLUDED_LIBINTL)
308    AC_SUBST(USE_INCLUDED_LIBINTL)
309    AC_SUBST(CATOBJEXT)
310
311    dnl For backward compatibility. Some configure.ins may be using this.
312    nls_cv_header_intl=
313    nls_cv_header_libgt=
314
315    dnl For backward compatibility. Some Makefiles may be using this.
316    DATADIRNAME=share
317    AC_SUBST(DATADIRNAME)
318
319    dnl For backward compatibility. Some Makefiles may be using this.
320    INSTOBJEXT=.mo
321    AC_SUBST(INSTOBJEXT)
322
323    dnl For backward compatibility. Some Makefiles may be using this.
324    GENCAT=gencat
325    AC_SUBST(GENCAT)
326
327    dnl For backward compatibility. Some Makefiles may be using this.
328    INTLOBJS=
329    if test "$USE_INCLUDED_LIBINTL" = yes; then
330      INTLOBJS="\$(GETTOBJS)"
331    fi
332    AC_SUBST(INTLOBJS)
333
334    dnl Enable libtool support if the surrounding package wishes it.
335    INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
336    AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
337  ])
338
339  dnl For backward compatibility. Some Makefiles may be using this.
340  INTLLIBS="$LIBINTL"
341  AC_SUBST(INTLLIBS)
342
343  dnl Make all documented variables known to autoconf.
344  AC_SUBST(LIBINTL)
345  AC_SUBST(LTLIBINTL)
346  AC_SUBST(POSUB)
347])
348
349
350dnl Checks for all prerequisites of the intl subdirectory,
351dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
352dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
353AC_DEFUN([AM_INTL_SUBDIR],
354[
355  AC_REQUIRE([AC_PROG_INSTALL])dnl
356  AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
357  AC_REQUIRE([AC_PROG_CC])dnl
358  AC_REQUIRE([AC_CANONICAL_HOST])dnl
359  AC_REQUIRE([gt_GLIBC2])dnl
360  AC_REQUIRE([AC_PROG_RANLIB])dnl
361  AC_REQUIRE([AC_ISC_POSIX])dnl
362  AC_REQUIRE([gl_VISIBILITY])dnl
363  AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl
364  AC_REQUIRE([bh_C_SIGNED])dnl
365  AC_REQUIRE([gl_AC_TYPE_LONG_LONG])dnl
366  AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
367  AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
368  AC_REQUIRE([gt_TYPE_WINT_T])dnl
369  AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
370  AC_REQUIRE([gt_TYPE_INTMAX_T])
371  AC_REQUIRE([gt_PRINTF_POSIX])
372  AC_REQUIRE([gl_GLIBC21])dnl
373  AC_REQUIRE([gl_XSIZE])dnl
374  AC_REQUIRE([gt_INTL_MACOSX])dnl
375
376  AC_CHECK_TYPE([ptrdiff_t], ,
377    [AC_DEFINE([ptrdiff_t], [long],
378       [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
379    ])
380  AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
381  AC_CHECK_FUNCS([asprintf fwprintf putenv setenv setlocale snprintf wcslen])
382
383  dnl Use the _snprintf function only if it is declared (because on NetBSD it
384  dnl is defined as a weak alias of snprintf; we prefer to use the latter).
385  gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
386  gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])
387
388  dnl Use the *_unlocked functions only if they are declared.
389  dnl (because some of them were defined without being declared in Solaris
390  dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
391  dnl on Solaris 2.5.1 to run on Solaris 2.6).
392  dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
393  gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])
394
395  case $gt_cv_func_printf_posix in
396    *yes) HAVE_POSIX_PRINTF=1 ;;
397    *) HAVE_POSIX_PRINTF=0 ;;
398  esac
399  AC_SUBST([HAVE_POSIX_PRINTF])
400  if test "$ac_cv_func_asprintf" = yes; then
401    HAVE_ASPRINTF=1
402  else
403    HAVE_ASPRINTF=0
404  fi
405  AC_SUBST([HAVE_ASPRINTF])
406  if test "$ac_cv_func_snprintf" = yes; then
407    HAVE_SNPRINTF=1
408  else
409    HAVE_SNPRINTF=0
410  fi
411  AC_SUBST([HAVE_SNPRINTF])
412  if test "$ac_cv_func_wprintf" = yes; then
413    HAVE_WPRINTF=1
414  else
415    HAVE_WPRINTF=0
416  fi
417  AC_SUBST([HAVE_WPRINTF])
418
419  AM_LANGINFO_CODESET
420  gt_LC_MESSAGES
421
422  dnl Compilation on mingw and Cygwin needs special Makefile rules, because
423  dnl 1. when we install a shared library, we must arrange to export
424  dnl    auxiliary pointer variables for every exported variable,
425  dnl 2. when we install a shared library and a static library simultaneously,
426  dnl    the include file specifies __declspec(dllimport) and therefore we
427  dnl    must arrange to define the auxiliary pointer variables for the
428  dnl    exported variables _also_ in the static library.
429  if test "$enable_shared" = yes; then
430    case "$host_os" in
431      cygwin*) is_woe32dll=yes ;;
432      *) is_woe32dll=no ;;
433    esac
434  else
435    is_woe32dll=no
436  fi
437  WOE32DLL=$is_woe32dll
438  AC_SUBST([WOE32DLL])
439
440  dnl Rename some macros and functions used for locking.
441  AH_BOTTOM([
442#define __libc_lock_t                   gl_lock_t
443#define __libc_lock_define              gl_lock_define
444#define __libc_lock_define_initialized  gl_lock_define_initialized
445#define __libc_lock_init                gl_lock_init
446#define __libc_lock_lock                gl_lock_lock
447#define __libc_lock_unlock              gl_lock_unlock
448#define __libc_lock_recursive_t                   gl_recursive_lock_t
449#define __libc_lock_define_recursive              gl_recursive_lock_define
450#define __libc_lock_define_initialized_recursive  gl_recursive_lock_define_initialized
451#define __libc_lock_init_recursive                gl_recursive_lock_init
452#define __libc_lock_lock_recursive                gl_recursive_lock_lock
453#define __libc_lock_unlock_recursive              gl_recursive_lock_unlock
454#define glthread_in_use  libintl_thread_in_use
455#define glthread_lock_init     libintl_lock_init
456#define glthread_lock_lock     libintl_lock_lock
457#define glthread_lock_unlock   libintl_lock_unlock
458#define glthread_lock_destroy  libintl_lock_destroy
459#define glthread_rwlock_init     libintl_rwlock_init
460#define glthread_rwlock_rdlock   libintl_rwlock_rdlock
461#define glthread_rwlock_wrlock   libintl_rwlock_wrlock
462#define glthread_rwlock_unlock   libintl_rwlock_unlock
463#define glthread_rwlock_destroy  libintl_rwlock_destroy
464#define glthread_recursive_lock_init     libintl_recursive_lock_init
465#define glthread_recursive_lock_lock     libintl_recursive_lock_lock
466#define glthread_recursive_lock_unlock   libintl_recursive_lock_unlock
467#define glthread_recursive_lock_destroy  libintl_recursive_lock_destroy
468#define glthread_once                 libintl_once
469#define glthread_once_call            libintl_once_call
470#define glthread_once_singlethreaded  libintl_once_singlethreaded
471])
472])
473
474
475dnl Checks for the core files of the intl subdirectory:
476dnl   dcigettext.c
477dnl   eval-plural.h
478dnl   explodename.c
479dnl   finddomain.c
480dnl   gettextP.h
481dnl   gmo.h
482dnl   hash-string.h hash-string.c
483dnl   l10nflist.c
484dnl   libgnuintl.h.in (except the *printf stuff)
485dnl   loadinfo.h
486dnl   loadmsgcat.c
487dnl   localealias.c
488dnl   log.c
489dnl   plural-exp.h plural-exp.c
490dnl   plural.y
491dnl Used by libglocale.
492AC_DEFUN([gt_INTL_SUBDIR_CORE],
493[
494  AC_REQUIRE([AC_C_CONST])dnl
495  AC_REQUIRE([AC_C_INLINE])dnl
496  AC_REQUIRE([AC_TYPE_SIZE_T])dnl
497  AC_REQUIRE([gl_AC_HEADER_STDINT_H])
498  AC_REQUIRE([AC_FUNC_ALLOCA])dnl
499  AC_REQUIRE([AC_FUNC_MMAP])dnl
500  AC_REQUIRE([gt_INTDIV0])dnl
501  AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
502  AC_REQUIRE([gl_HEADER_INTTYPES_H])dnl
503  AC_REQUIRE([gt_INTTYPES_PRI])dnl
504  AC_REQUIRE([gl_LOCK])dnl
505
506  AC_TRY_LINK(
507    [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }],
508    [],
509    [AC_DEFINE([HAVE_BUILTIN_EXPECT], 1,
510       [Define to 1 if the compiler understands __builtin_expect.])])
511
512  AC_CHECK_HEADERS([argz.h limits.h unistd.h sys/param.h])
513  AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
514    stpcpy strcasecmp strdup strtoul tsearch argz_count argz_stringify \
515    argz_next __fsetlocking])
516
517  dnl Use the *_unlocked functions only if they are declared.
518  dnl (because some of them were defined without being declared in Solaris
519  dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
520  dnl on Solaris 2.5.1 to run on Solaris 2.6).
521  dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
522  gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
523  gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
524
525  AM_ICONV
526
527  dnl glibc >= 2.4 has a NL_LOCALE_NAME macro when _GNU_SOURCE is defined,
528  dnl and a _NL_LOCALE_NAME macro always.
529  AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
530    [AC_TRY_LINK([#include <langinfo.h>
531#include <locale.h>],
532      [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));],
533      gt_cv_nl_locale_name=yes,
534      gt_cv_nl_locale_name=no)
535    ])
536  if test $gt_cv_nl_locale_name = yes; then
537    AC_DEFINE(HAVE_NL_LOCALE_NAME, 1,
538      [Define if you have <langinfo.h> and it defines the NL_LOCALE_NAME macro if _GNU_SOURCE is defined.])
539  fi
540
541  dnl intl/plural.c is generated from intl/plural.y. It requires bison,
542  dnl because plural.y uses bison specific features. It requires at least
543  dnl bison-1.26 because earlier versions generate a plural.c that doesn't
544  dnl compile.
545  dnl bison is only needed for the maintainer (who touches plural.y). But in
546  dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
547  dnl the rule in general Makefile. Now, some people carelessly touch the
548  dnl files or have a broken "make" program, hence the plural.c rule will
549  dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
550  dnl present or too old.
551  AC_CHECK_PROGS([INTLBISON], [bison])
552  if test -z "$INTLBISON"; then
553    ac_verc_fail=yes
554  else
555    dnl Found it, now check the version.
556    AC_MSG_CHECKING([version of bison])
557changequote(<<,>>)dnl
558    ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
559    case $ac_prog_version in
560      '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
561      1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
562changequote([,])dnl
563         ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
564      *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
565    esac
566    AC_MSG_RESULT([$ac_prog_version])
567  fi
568  if test $ac_verc_fail = yes; then
569    INTLBISON=:
570  fi
571])
572
573
574dnl Checks for special options needed on MacOS X.
575dnl Defines INTL_MACOSX_LIBS.
576AC_DEFUN([gt_INTL_MACOSX],
577[
578  dnl Check for API introduced in MacOS X 10.2.
579  AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
580    gt_cv_func_CFPreferencesCopyAppValue,
581    [gt_save_LIBS="$LIBS"
582     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
583     AC_TRY_LINK([#include <CoreFoundation/CFPreferences.h>],
584       [CFPreferencesCopyAppValue(NULL, NULL)],
585       [gt_cv_func_CFPreferencesCopyAppValue=yes],
586       [gt_cv_func_CFPreferencesCopyAppValue=no])
587     LIBS="$gt_save_LIBS"])
588  if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
589    AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], 1,
590      [Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in the CoreFoundation framework.])
591  fi
592  dnl Check for API introduced in MacOS X 10.3.
593  AC_CACHE_CHECK([for CFLocaleCopyCurrent], gt_cv_func_CFLocaleCopyCurrent,
594    [gt_save_LIBS="$LIBS"
595     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
596     AC_TRY_LINK([#include <CoreFoundation/CFLocale.h>], [CFLocaleCopyCurrent();],
597       [gt_cv_func_CFLocaleCopyCurrent=yes],
598       [gt_cv_func_CFLocaleCopyCurrent=no])
599     LIBS="$gt_save_LIBS"])
600  if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
601    AC_DEFINE([HAVE_CFLOCALECOPYCURRENT], 1,
602      [Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the CoreFoundation framework.])
603  fi
604  INTL_MACOSX_LIBS=
605  if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
606    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
607  fi
608  AC_SUBST([INTL_MACOSX_LIBS])
609])
610
611
612dnl gt_CHECK_DECL(FUNC, INCLUDES)
613dnl Check whether a function is declared.
614AC_DEFUN([gt_CHECK_DECL],
615[
616  AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
617    [AC_TRY_COMPILE([$2], [
618#ifndef $1
619  char *p = (char *) $1;
620#endif
621], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
622  if test $ac_cv_have_decl_$1 = yes; then
623    gt_value=1
624  else
625    gt_value=0
626  fi
627  AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
628    [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
629])
630
631
632dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
633AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])
634