1 # intl.m4 serial 4 (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 Rename some macros and functions used for locking.
111 #define __libc_lock_t gl_lock_t
112 #define __libc_lock_define gl_lock_define
113 #define __libc_lock_define_initialized gl_lock_define_initialized
114 #define __libc_lock_init gl_lock_init
115 #define __libc_lock_lock gl_lock_lock
116 #define __libc_lock_unlock gl_lock_unlock
117 #define __libc_lock_recursive_t gl_recursive_lock_t
118 #define __libc_lock_define_recursive gl_recursive_lock_define
119 #define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized
120 #define __libc_lock_init_recursive gl_recursive_lock_init
121 #define __libc_lock_lock_recursive gl_recursive_lock_lock
122 #define __libc_lock_unlock_recursive gl_recursive_lock_unlock
123 #define glthread_in_use libintl_thread_in_use
124 #define glthread_lock_init libintl_lock_init
125 #define glthread_lock_lock libintl_lock_lock
126 #define glthread_lock_unlock libintl_lock_unlock
127 #define glthread_lock_destroy libintl_lock_destroy
128 #define glthread_rwlock_init libintl_rwlock_init
129 #define glthread_rwlock_rdlock libintl_rwlock_rdlock
130 #define glthread_rwlock_wrlock libintl_rwlock_wrlock
131 #define glthread_rwlock_unlock libintl_rwlock_unlock
132 #define glthread_rwlock_destroy libintl_rwlock_destroy
133 #define glthread_recursive_lock_init libintl_recursive_lock_init
134 #define glthread_recursive_lock_lock libintl_recursive_lock_lock
135 #define glthread_recursive_lock_unlock libintl_recursive_lock_unlock
136 #define glthread_recursive_lock_destroy libintl_recursive_lock_destroy
137 #define glthread_once libintl_once
138 #define glthread_once_call libintl_once_call
139 #define glthread_once_singlethreaded libintl_once_singlethreaded
144 dnl Checks for the core files of the intl subdirectory:
151 dnl hash-string.h hash-string.c
153 dnl libgnuintl.h.in (except the *printf stuff)
158 dnl plural-exp.h plural-exp.c
160 dnl Used by libglocale.
161 AC_DEFUN([gt_INTL_SUBDIR_CORE],
163 AC_REQUIRE([AC_C_INLINE])dnl
164 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
165 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
166 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
167 AC_REQUIRE([AC_FUNC_MMAP])dnl
168 AC_REQUIRE([gt_INTDIV0])dnl
169 AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
170 AC_REQUIRE([gt_INTTYPES_PRI])dnl
171 AC_REQUIRE([gl_LOCK])dnl
174 [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }],
176 [AC_DEFINE([HAVE_BUILTIN_EXPECT], 1,
177 [Define to 1 if the compiler understands __builtin_expect.])])
179 AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
180 AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
181 stpcpy strcasecmp strdup strtoul tsearch argz_count argz_stringify \
182 argz_next __fsetlocking])
184 dnl Use the *_unlocked functions only if they are declared.
185 dnl (because some of them were defined without being declared in Solaris
186 dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
187 dnl on Solaris 2.5.1 to run on Solaris 2.6).
188 dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
189 gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
190 gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
194 dnl glibc >= 2.4 has a NL_LOCALE_NAME macro when _GNU_SOURCE is defined,
195 dnl and a _NL_LOCALE_NAME macro always.
196 AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
197 [AC_TRY_LINK([#include <langinfo.h>
198 #include <locale.h>],
199 [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));],
200 gt_cv_nl_locale_name=yes,
201 gt_cv_nl_locale_name=no)
203 if test $gt_cv_nl_locale_name = yes; then
204 AC_DEFINE(HAVE_NL_LOCALE_NAME, 1,
205 [Define if you have <langinfo.h> and it defines the NL_LOCALE_NAME macro if _GNU_SOURCE is defined.])
208 dnl intl/plural.c is generated from intl/plural.y. It requires bison,
209 dnl because plural.y uses bison specific features. It requires at least
210 dnl bison-1.26 because earlier versions generate a plural.c that doesn't
212 dnl bison is only needed for the maintainer (who touches plural.y). But in
213 dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
214 dnl the rule in general Makefile. Now, some people carelessly touch the
215 dnl files or have a broken "make" program, hence the plural.c rule will
216 dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
217 dnl present or too old.
218 AC_CHECK_PROGS([INTLBISON], [bison])
219 if test -z "$INTLBISON"; then
222 dnl Found it, now check the version.
223 AC_MSG_CHECKING([version of bison])
224 changequote(<<,>>)dnl
225 ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
226 case $ac_prog_version in
227 '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
228 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
230 ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
231 *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
233 AC_MSG_RESULT([$ac_prog_version])
235 if test $ac_verc_fail = yes; then
241 dnl gt_CHECK_DECL(FUNC, INCLUDES)
242 dnl Check whether a function is declared.
243 AC_DEFUN([gt_CHECK_DECL],
245 AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
246 [AC_TRY_COMPILE([$2], [
248 char *p = (char *) $1;
250 ], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
251 if test $ac_cv_have_decl_$1 = yes; then
256 AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
257 [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])