1 # intl.m4 serial 5 (gettext-0.16.2)
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 "$enable_shared" = yes; then
100 cygwin*) is_woe32dll=yes ;;
106 WOE32DLL=$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 Rename some macros and functions used for locking.
124 #define __libc_lock_t gl_lock_t
125 #define __libc_lock_define gl_lock_define
126 #define __libc_lock_define_initialized gl_lock_define_initialized
127 #define __libc_lock_init gl_lock_init
128 #define __libc_lock_lock gl_lock_lock
129 #define __libc_lock_unlock gl_lock_unlock
130 #define __libc_lock_recursive_t gl_recursive_lock_t
131 #define __libc_lock_define_recursive gl_recursive_lock_define
132 #define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized
133 #define __libc_lock_init_recursive gl_recursive_lock_init
134 #define __libc_lock_lock_recursive gl_recursive_lock_lock
135 #define __libc_lock_unlock_recursive gl_recursive_lock_unlock
136 #define glthread_in_use libintl_thread_in_use
137 #define glthread_lock_init libintl_lock_init
138 #define glthread_lock_lock libintl_lock_lock
139 #define glthread_lock_unlock libintl_lock_unlock
140 #define glthread_lock_destroy libintl_lock_destroy
141 #define glthread_rwlock_init libintl_rwlock_init
142 #define glthread_rwlock_rdlock libintl_rwlock_rdlock
143 #define glthread_rwlock_wrlock libintl_rwlock_wrlock
144 #define glthread_rwlock_unlock libintl_rwlock_unlock
145 #define glthread_rwlock_destroy libintl_rwlock_destroy
146 #define glthread_recursive_lock_init libintl_recursive_lock_init
147 #define glthread_recursive_lock_lock libintl_recursive_lock_lock
148 #define glthread_recursive_lock_unlock libintl_recursive_lock_unlock
149 #define glthread_recursive_lock_destroy libintl_recursive_lock_destroy
150 #define glthread_once libintl_once
151 #define glthread_once_call libintl_once_call
152 #define glthread_once_singlethreaded libintl_once_singlethreaded
157 dnl Checks for the core files of the intl subdirectory:
164 dnl hash-string.h hash-string.c
166 dnl libgnuintl.h.in (except the *printf stuff)
171 dnl plural-exp.h plural-exp.c
173 dnl Used by libglocale.
174 AC_DEFUN([gt_INTL_SUBDIR_CORE],
176 AC_REQUIRE([AC_C_INLINE])dnl
177 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
178 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
179 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
180 AC_REQUIRE([AC_FUNC_MMAP])dnl
181 AC_REQUIRE([gt_INTDIV0])dnl
182 AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
183 AC_REQUIRE([gt_INTTYPES_PRI])dnl
184 AC_REQUIRE([gl_LOCK])dnl
187 [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }],
189 [AC_DEFINE([HAVE_BUILTIN_EXPECT], 1,
190 [Define to 1 if the compiler understands __builtin_expect.])])
192 AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
193 AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
194 stpcpy strcasecmp strdup strtoul tsearch argz_count argz_stringify \
195 argz_next __fsetlocking])
197 dnl Use the *_unlocked functions only if they are declared.
198 dnl (because some of them were defined without being declared in Solaris
199 dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
200 dnl on Solaris 2.5.1 to run on Solaris 2.6).
201 dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
202 gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
203 gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
207 dnl glibc >= 2.4 has a NL_LOCALE_NAME macro when _GNU_SOURCE is defined,
208 dnl and a _NL_LOCALE_NAME macro always.
209 AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
210 [AC_TRY_LINK([#include <langinfo.h>
211 #include <locale.h>],
212 [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));],
213 gt_cv_nl_locale_name=yes,
214 gt_cv_nl_locale_name=no)
216 if test $gt_cv_nl_locale_name = yes; then
217 AC_DEFINE(HAVE_NL_LOCALE_NAME, 1,
218 [Define if you have <langinfo.h> and it defines the NL_LOCALE_NAME macro if _GNU_SOURCE is defined.])
221 dnl intl/plural.c is generated from intl/plural.y. It requires bison,
222 dnl because plural.y uses bison specific features. It requires at least
223 dnl bison-1.26 because earlier versions generate a plural.c that doesn't
225 dnl bison is only needed for the maintainer (who touches plural.y). But in
226 dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
227 dnl the rule in general Makefile. Now, some people carelessly touch the
228 dnl files or have a broken "make" program, hence the plural.c rule will
229 dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
230 dnl present or too old.
231 AC_CHECK_PROGS([INTLBISON], [bison])
232 if test -z "$INTLBISON"; then
235 dnl Found it, now check the version.
236 AC_MSG_CHECKING([version of bison])
237 changequote(<<,>>)dnl
238 ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
239 case $ac_prog_version in
240 '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
241 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
243 ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
244 *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
246 AC_MSG_RESULT([$ac_prog_version])
248 if test $ac_verc_fail = yes; then
254 dnl gt_CHECK_DECL(FUNC, INCLUDES)
255 dnl Check whether a function is declared.
256 AC_DEFUN([gt_CHECK_DECL],
258 AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
259 [AC_TRY_COMPILE([$2], [
261 char *p = (char *) $1;
263 ], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
264 if test $ac_cv_have_decl_$1 = yes; then
269 AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
270 [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])