1 # intl.m4 serial 8 (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.
22 dnl Checks for all prerequisites of the intl subdirectory,
23 dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
24 dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
25 AC_DEFUN([AM_INTL_SUBDIR],
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_WCHAR_T])dnl
37 AC_REQUIRE([gt_TYPE_WINT_T])dnl
38 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
39 AC_REQUIRE([gt_TYPE_INTMAX_T])
40 AC_REQUIRE([gt_PRINTF_POSIX])
41 AC_REQUIRE([gl_GLIBC21])dnl
42 AC_REQUIRE([gl_XSIZE])dnl
43 AC_REQUIRE([gt_INTL_MACOSX])dnl
45 AC_CHECK_TYPE([ptrdiff_t], ,
46 [AC_DEFINE([ptrdiff_t], [long],
47 [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
49 AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
50 AC_CHECK_FUNCS([asprintf fwprintf putenv setenv setlocale snprintf wcslen])
52 dnl Use the _snprintf function only if it is declared (because on NetBSD it
53 dnl is defined as a weak alias of snprintf; we prefer to use the latter).
54 gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
55 gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])
57 dnl Use the *_unlocked functions only if they are declared.
58 dnl (because some of them were defined without being declared in Solaris
59 dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
60 dnl on Solaris 2.5.1 to run on Solaris 2.6).
61 dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
62 gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])
64 case $gt_cv_func_printf_posix in
65 *yes) HAVE_POSIX_PRINTF=1 ;;
66 *) HAVE_POSIX_PRINTF=0 ;;
68 AC_SUBST([HAVE_POSIX_PRINTF])
69 if test "$ac_cv_func_asprintf" = yes; then
74 AC_SUBST([HAVE_ASPRINTF])
75 if test "$ac_cv_func_snprintf" = yes; then
80 AC_SUBST([HAVE_SNPRINTF])
81 if test "$ac_cv_func_wprintf" = yes; then
86 AC_SUBST([HAVE_WPRINTF])
91 dnl Compilation on mingw and Cygwin needs special Makefile rules, because
92 dnl 1. when we install a shared library, we must arrange to export
93 dnl auxiliary pointer variables for every exported variable,
94 dnl 2. when we install a shared library and a static library simultaneously,
95 dnl the include file specifies __declspec(dllimport) and therefore we
96 dnl must arrange to define the auxiliary pointer variables for the
97 dnl exported variables _also_ in the static library.
98 if test "$enable_shared" = yes; then
100 mingw* | cygwin*) is_woe32dll=yes ;;
106 WOE32DLL=$is_woe32dll
109 dnl On mingw and Cygwin, we can activate special Makefile rules which add
110 dnl version information to the shared libraries and executables.
112 mingw* | cygwin*) is_woe32=yes ;;
117 if test $WOE32 = yes; then
118 dnl Check for a program that compiles Windows resource files.
119 AC_CHECK_TOOL([WINDRES], [windres])
122 dnl Determine whether when creating a library, "-lc" should be passed to
123 dnl libtool or not. On many platforms, it is required for the libtool option
124 dnl -no-undefined to work. On HP-UX, however, the -lc - stored by libtool
125 dnl in the *.la files - makes it impossible to create multithreaded programs,
126 dnl because libtool also reorders the -lc to come before the -pthread, and
127 dnl this disables pthread_create() <http://docs.hp.com/en/1896/pthreads.html>.
134 dnl Rename some macros and functions used for locking.
136 #define __libc_lock_t gl_lock_t
137 #define __libc_lock_define gl_lock_define
138 #define __libc_lock_define_initialized gl_lock_define_initialized
139 #define __libc_lock_init gl_lock_init
140 #define __libc_lock_lock gl_lock_lock
141 #define __libc_lock_unlock gl_lock_unlock
142 #define __libc_lock_recursive_t gl_recursive_lock_t
143 #define __libc_lock_define_recursive gl_recursive_lock_define
144 #define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized
145 #define __libc_lock_init_recursive gl_recursive_lock_init
146 #define __libc_lock_lock_recursive gl_recursive_lock_lock
147 #define __libc_lock_unlock_recursive gl_recursive_lock_unlock
148 #define glthread_in_use libintl_thread_in_use
149 #define glthread_lock_init libintl_lock_init
150 #define glthread_lock_lock libintl_lock_lock
151 #define glthread_lock_unlock libintl_lock_unlock
152 #define glthread_lock_destroy libintl_lock_destroy
153 #define glthread_rwlock_init libintl_rwlock_init
154 #define glthread_rwlock_rdlock libintl_rwlock_rdlock
155 #define glthread_rwlock_wrlock libintl_rwlock_wrlock
156 #define glthread_rwlock_unlock libintl_rwlock_unlock
157 #define glthread_rwlock_destroy libintl_rwlock_destroy
158 #define glthread_recursive_lock_init libintl_recursive_lock_init
159 #define glthread_recursive_lock_lock libintl_recursive_lock_lock
160 #define glthread_recursive_lock_unlock libintl_recursive_lock_unlock
161 #define glthread_recursive_lock_destroy libintl_recursive_lock_destroy
162 #define glthread_once libintl_once
163 #define glthread_once_call libintl_once_call
164 #define glthread_once_singlethreaded libintl_once_singlethreaded
169 dnl Checks for the core files of the intl subdirectory:
176 dnl hash-string.h hash-string.c
178 dnl libgnuintl.h.in (except the *printf stuff)
183 dnl plural-exp.h plural-exp.c
185 dnl Used by libglocale.
186 AC_DEFUN([gt_INTL_SUBDIR_CORE],
188 AC_REQUIRE([AC_C_INLINE])dnl
189 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
190 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
191 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
192 AC_REQUIRE([AC_FUNC_MMAP])dnl
193 AC_REQUIRE([gt_INTDIV0])dnl
194 AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
195 AC_REQUIRE([gt_INTTYPES_PRI])dnl
196 AC_REQUIRE([gl_LOCK])dnl
199 [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }],
201 [AC_DEFINE([HAVE_BUILTIN_EXPECT], 1,
202 [Define to 1 if the compiler understands __builtin_expect.])])
204 AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
205 AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
206 stpcpy strcasecmp strdup strtoul tsearch argz_count argz_stringify \
207 argz_next __fsetlocking])
209 dnl Use the *_unlocked functions only if they are declared.
210 dnl (because some of them were defined without being declared in Solaris
211 dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
212 dnl on Solaris 2.5.1 to run on Solaris 2.6).
213 dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
214 gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
215 gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
219 dnl glibc >= 2.4 has a NL_LOCALE_NAME macro when _GNU_SOURCE is defined,
220 dnl and a _NL_LOCALE_NAME macro always.
221 AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
222 [AC_TRY_LINK([#include <langinfo.h>
223 #include <locale.h>],
224 [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));
227 gt_cv_nl_locale_name=yes,
228 gt_cv_nl_locale_name=no)
230 if test $gt_cv_nl_locale_name = yes; then
231 AC_DEFINE(HAVE_NL_LOCALE_NAME, 1,
232 [Define if you have <langinfo.h> and it defines the NL_LOCALE_NAME macro if _GNU_SOURCE is defined.])
235 dnl intl/plural.c is generated from intl/plural.y. It requires bison,
236 dnl because plural.y uses bison specific features. It requires at least
237 dnl bison-1.26 because earlier versions generate a plural.c that doesn't
239 dnl bison is only needed for the maintainer (who touches plural.y). But in
240 dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
241 dnl the rule in general Makefile. Now, some people carelessly touch the
242 dnl files or have a broken "make" program, hence the plural.c rule will
243 dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
244 dnl present or too old.
245 AC_CHECK_PROGS([INTLBISON], [bison])
246 if test -z "$INTLBISON"; then
249 dnl Found it, now check the version.
250 AC_MSG_CHECKING([version of bison])
251 changequote(<<,>>)dnl
252 ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
253 case $ac_prog_version in
254 '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
255 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
257 ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
258 *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
260 AC_MSG_RESULT([$ac_prog_version])
262 if test $ac_verc_fail = yes; then
268 dnl gt_CHECK_DECL(FUNC, INCLUDES)
269 dnl Check whether a function is declared.
270 AC_DEFUN([gt_CHECK_DECL],
272 AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
273 [AC_TRY_COMPILE([$2], [
275 char *p = (char *) $1;
277 ], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
278 if test $ac_cv_have_decl_$1 = yes; then
283 AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
284 [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])