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1# intl.m4 serial 3 (gettext-0.16)
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>, 2000-2006.
19
20AC_PREREQ(2.52)
21
22dnl Checks for all prerequisites of the intl subdirectory,
23dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
24dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
25AC_DEFUN([AM_INTL_SUBDIR],
26[
27 AC_REQUIRE([AC_PROG_INSTALL])dnl
28 AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
29 AC_REQUIRE([AC_PROG_CC])dnl
30 AC_REQUIRE([AC_CANONICAL_HOST])dnl
31 AC_REQUIRE([gt_GLIBC2])dnl
32 AC_REQUIRE([AC_PROG_RANLIB])dnl
33 AC_REQUIRE([gl_VISIBILITY])dnl
34 AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl
35 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])dnl
36 AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
37 AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
38 AC_REQUIRE([gt_TYPE_WINT_T])dnl
39 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
40 AC_REQUIRE([gt_TYPE_INTMAX_T])
41 AC_REQUIRE([gt_PRINTF_POSIX])
42 AC_REQUIRE([gl_GLIBC21])dnl
43 AC_REQUIRE([gl_XSIZE])dnl
44 AC_REQUIRE([gt_INTL_MACOSX])dnl
45
46 AC_CHECK_TYPE([ptrdiff_t], ,
47 [AC_DEFINE([ptrdiff_t], [long],
48 [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
49 ])
50 AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
51 AC_CHECK_FUNCS([asprintf fwprintf putenv setenv setlocale snprintf wcslen])
52
53 dnl Use the _snprintf function only if it is declared (because on NetBSD it
54 dnl is defined as a weak alias of snprintf; we prefer to use the latter).
55 gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
56 gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])
57
58 dnl Use the *_unlocked functions only if they are declared.
59 dnl (because some of them were defined without being declared in Solaris
60 dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
61 dnl on Solaris 2.5.1 to run on Solaris 2.6).
62 dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
63 gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])
64
65 case $gt_cv_func_printf_posix in
66 *yes) HAVE_POSIX_PRINTF=1 ;;
67 *) HAVE_POSIX_PRINTF=0 ;;
68 esac
69 AC_SUBST([HAVE_POSIX_PRINTF])
70 if test "$ac_cv_func_asprintf" = yes; then
71 HAVE_ASPRINTF=1
72 else
73 HAVE_ASPRINTF=0
74 fi
75 AC_SUBST([HAVE_ASPRINTF])
76 if test "$ac_cv_func_snprintf" = yes; then
77 HAVE_SNPRINTF=1
78 else
79 HAVE_SNPRINTF=0
80 fi
81 AC_SUBST([HAVE_SNPRINTF])
82 if test "$ac_cv_func_wprintf" = yes; then
83 HAVE_WPRINTF=1
84 else
85 HAVE_WPRINTF=0
86 fi
87 AC_SUBST([HAVE_WPRINTF])
88
89 AM_LANGINFO_CODESET
90 gt_LC_MESSAGES
91
92 dnl Compilation on mingw and Cygwin needs special Makefile rules, because
93 dnl 1. when we install a shared library, we must arrange to export
94 dnl auxiliary pointer variables for every exported variable,
95 dnl 2. when we install a shared library and a static library simultaneously,
96 dnl the include file specifies __declspec(dllimport) and therefore we
97 dnl must arrange to define the auxiliary pointer variables for the
98 dnl exported variables _also_ in the static library.
99 if test "$enable_shared" = yes; then
100 case "$host_os" in
101 cygwin*) is_woe32dll=yes ;;
102 *) is_woe32dll=no ;;
103 esac
104 else
105 is_woe32dll=no
106 fi
107 WOE32DLL=$is_woe32dll
108 AC_SUBST([WOE32DLL])
109
110 dnl Rename some macros and functions used for locking.
111 AH_BOTTOM([
112#define __libc_lock_t gl_lock_t
113#define __libc_lock_define gl_lock_define
114#define __libc_lock_define_initialized gl_lock_define_initialized
115#define __libc_lock_init gl_lock_init
116#define __libc_lock_lock gl_lock_lock
117#define __libc_lock_unlock gl_lock_unlock
118#define __libc_lock_recursive_t gl_recursive_lock_t
119#define __libc_lock_define_recursive gl_recursive_lock_define
120#define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized
121#define __libc_lock_init_recursive gl_recursive_lock_init
122#define __libc_lock_lock_recursive gl_recursive_lock_lock
123#define __libc_lock_unlock_recursive gl_recursive_lock_unlock
124#define glthread_in_use libintl_thread_in_use
125#define glthread_lock_init libintl_lock_init
126#define glthread_lock_lock libintl_lock_lock
127#define glthread_lock_unlock libintl_lock_unlock
128#define glthread_lock_destroy libintl_lock_destroy
129#define glthread_rwlock_init libintl_rwlock_init
130#define glthread_rwlock_rdlock libintl_rwlock_rdlock
131#define glthread_rwlock_wrlock libintl_rwlock_wrlock
132#define glthread_rwlock_unlock libintl_rwlock_unlock
133#define glthread_rwlock_destroy libintl_rwlock_destroy
134#define glthread_recursive_lock_init libintl_recursive_lock_init
135#define glthread_recursive_lock_lock libintl_recursive_lock_lock
136#define glthread_recursive_lock_unlock libintl_recursive_lock_unlock
137#define glthread_recursive_lock_destroy libintl_recursive_lock_destroy
138#define glthread_once libintl_once
139#define glthread_once_call libintl_once_call
140#define glthread_once_singlethreaded libintl_once_singlethreaded
141])
142])
143
144
145dnl Checks for the core files of the intl subdirectory:
146dnl dcigettext.c
147dnl eval-plural.h
148dnl explodename.c
149dnl finddomain.c
150dnl gettextP.h
151dnl gmo.h
152dnl hash-string.h hash-string.c
153dnl l10nflist.c
154dnl libgnuintl.h.in (except the *printf stuff)
155dnl loadinfo.h
156dnl loadmsgcat.c
157dnl localealias.c
158dnl log.c
159dnl plural-exp.h plural-exp.c
160dnl plural.y
161dnl Used by libglocale.
162AC_DEFUN([gt_INTL_SUBDIR_CORE],
163[
164 AC_REQUIRE([AC_C_INLINE])dnl
165 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
166 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
167 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
168 AC_REQUIRE([AC_FUNC_MMAP])dnl
169 AC_REQUIRE([gt_INTDIV0])dnl
170 AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
171 AC_REQUIRE([gt_INTTYPES_PRI])dnl
172 AC_REQUIRE([gl_LOCK])dnl
173
174 AC_TRY_LINK(
175 [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }],
176 [],
177 [AC_DEFINE([HAVE_BUILTIN_EXPECT], 1,
178 [Define to 1 if the compiler understands __builtin_expect.])])
179
180 AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
181 AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
182 stpcpy strcasecmp strdup strtoul tsearch argz_count argz_stringify \
183 argz_next __fsetlocking])
184
185 dnl Use the *_unlocked functions only if they are declared.
186 dnl (because some of them were defined without being declared in Solaris
187 dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
188 dnl on Solaris 2.5.1 to run on Solaris 2.6).
189 dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
190 gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
191 gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
192
193 AM_ICONV
194
195 dnl glibc >= 2.4 has a NL_LOCALE_NAME macro when _GNU_SOURCE is defined,
196 dnl and a _NL_LOCALE_NAME macro always.
197 AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
198 [AC_TRY_LINK([#include <langinfo.h>
199#include <locale.h>],
200 [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));],
201 gt_cv_nl_locale_name=yes,
202 gt_cv_nl_locale_name=no)
203 ])
204 if test $gt_cv_nl_locale_name = yes; then
205 AC_DEFINE(HAVE_NL_LOCALE_NAME, 1,
206 [Define if you have <langinfo.h> and it defines the NL_LOCALE_NAME macro if _GNU_SOURCE is defined.])
207 fi
208
209 dnl intl/plural.c is generated from intl/plural.y. It requires bison,
210 dnl because plural.y uses bison specific features. It requires at least
211 dnl bison-1.26 because earlier versions generate a plural.c that doesn't
212 dnl compile.
213 dnl bison is only needed for the maintainer (who touches plural.y). But in
214 dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
215 dnl the rule in general Makefile. Now, some people carelessly touch the
216 dnl files or have a broken "make" program, hence the plural.c rule will
217 dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
218 dnl present or too old.
219 AC_CHECK_PROGS([INTLBISON], [bison])
220 if test -z "$INTLBISON"; then
221 ac_verc_fail=yes
222 else
223 dnl Found it, now check the version.
224 AC_MSG_CHECKING([version of bison])
225changequote(<<,>>)dnl
226 ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
227 case $ac_prog_version in
228 '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
229 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
230changequote([,])dnl
231 ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
232 *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
233 esac
234 AC_MSG_RESULT([$ac_prog_version])
235 fi
236 if test $ac_verc_fail = yes; then
237 INTLBISON=:
238 fi
239])
240
241
242dnl gt_CHECK_DECL(FUNC, INCLUDES)
243dnl Check whether a function is declared.
244AC_DEFUN([gt_CHECK_DECL],
245[
246 AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
247 [AC_TRY_COMPILE([$2], [
248#ifndef $1
249 char *p = (char *) $1;
250#endif
251], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
252 if test $ac_cv_have_decl_$1 = yes; then
253 gt_value=1
254 else
255 gt_value=0
256 fi
257 AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
258 [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
259])