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1 | # intl.m4 serial 28 (gettext-0.19) |
2 | dnl Copyright (C) 1995-2014 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. | |
6 | dnl | |
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 | |
10 | dnl functionality. | |
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. | |
15 | ||
16 | dnl Authors: | |
17 | dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000. | |
18 | dnl Bruno Haible <haible@clisp.cons.org>, 2000-2009. | |
19 | ||
20 | AC_PREREQ([2.60]) | |
21 | ||
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], | |
26 | [ | |
27 | AC_REQUIRE([AC_PROG_INSTALL])dnl | |
28 | AC_REQUIRE([AC_PROG_MKDIR_P])dnl | |
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([gl_FCNTL_O_FLAGS])dnl | |
44 | AC_REQUIRE([gt_INTL_MACOSX])dnl | |
45 | AC_REQUIRE([gl_EXTERN_INLINE])dnl | |
46 | AC_REQUIRE([gt_GL_ATTRIBUTE])dnl | |
47 | ||
48 | dnl Support for automake's --enable-silent-rules. | |
49 | case "$enable_silent_rules" in | |
50 | yes) INTL_DEFAULT_VERBOSITY=0;; | |
51 | no) INTL_DEFAULT_VERBOSITY=1;; | |
52 | *) INTL_DEFAULT_VERBOSITY=1;; | |
53 | esac | |
54 | AC_SUBST([INTL_DEFAULT_VERBOSITY]) | |
55 | ||
56 | AC_CHECK_TYPE([ptrdiff_t], , | |
57 | [AC_DEFINE([ptrdiff_t], [long], | |
58 | [Define as the type of the result of subtracting two pointers, if the system doesn't define it.]) | |
59 | ]) | |
60 | AC_CHECK_HEADERS([features.h stddef.h stdlib.h string.h]) | |
61 | AC_CHECK_FUNCS([asprintf fwprintf newlocale putenv setenv setlocale \ | |
62 | snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb]) | |
63 | ||
64 | dnl Use the _snprintf function only if it is declared (because on NetBSD it | |
65 | dnl is defined as a weak alias of snprintf; we prefer to use the latter). | |
66 | AC_CHECK_DECLS([_snprintf, _snwprintf], , , [#include <stdio.h>]) | |
67 | ||
68 | dnl Use the *_unlocked functions only if they are declared. | |
69 | dnl (because some of them were defined without being declared in Solaris | |
70 | dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built | |
71 | dnl on Solaris 2.5.1 to run on Solaris 2.6). | |
72 | AC_CHECK_DECLS([getc_unlocked], , , [#include <stdio.h>]) | |
73 | ||
74 | case $gt_cv_func_printf_posix in | |
75 | *yes) HAVE_POSIX_PRINTF=1 ;; | |
76 | *) HAVE_POSIX_PRINTF=0 ;; | |
77 | esac | |
78 | AC_SUBST([HAVE_POSIX_PRINTF]) | |
79 | if test "$ac_cv_func_asprintf" = yes; then | |
80 | HAVE_ASPRINTF=1 | |
81 | else | |
82 | HAVE_ASPRINTF=0 | |
83 | fi | |
84 | AC_SUBST([HAVE_ASPRINTF]) | |
85 | if test "$ac_cv_func_snprintf" = yes; then | |
86 | HAVE_SNPRINTF=1 | |
87 | else | |
88 | HAVE_SNPRINTF=0 | |
89 | fi | |
90 | AC_SUBST([HAVE_SNPRINTF]) | |
91 | if test "$ac_cv_func_newlocale" = yes; then | |
92 | HAVE_NEWLOCALE=1 | |
93 | else | |
94 | HAVE_NEWLOCALE=0 | |
95 | fi | |
96 | AC_SUBST([HAVE_NEWLOCALE]) | |
97 | if test "$ac_cv_func_wprintf" = yes; then | |
98 | HAVE_WPRINTF=1 | |
99 | else | |
100 | HAVE_WPRINTF=0 | |
101 | fi | |
102 | AC_SUBST([HAVE_WPRINTF]) | |
103 | ||
104 | AM_LANGINFO_CODESET | |
105 | gt_LC_MESSAGES | |
106 | ||
107 | dnl Compilation on mingw and Cygwin needs special Makefile rules, because | |
108 | dnl 1. when we install a shared library, we must arrange to export | |
109 | dnl auxiliary pointer variables for every exported variable, | |
110 | dnl 2. when we install a shared library and a static library simultaneously, | |
111 | dnl the include file specifies __declspec(dllimport) and therefore we | |
112 | dnl must arrange to define the auxiliary pointer variables for the | |
113 | dnl exported variables _also_ in the static library. | |
114 | if test "$enable_shared" = yes; then | |
115 | case "$host_os" in | |
116 | mingw* | cygwin*) is_woe32dll=yes ;; | |
117 | *) is_woe32dll=no ;; | |
118 | esac | |
119 | else | |
120 | is_woe32dll=no | |
121 | fi | |
122 | WOE32DLL=$is_woe32dll | |
123 | AC_SUBST([WOE32DLL]) | |
124 | ||
125 | dnl On mingw and Cygwin, we can activate special Makefile rules which add | |
126 | dnl version information to the shared libraries and executables. | |
127 | case "$host_os" in | |
128 | mingw* | cygwin*) is_woe32=yes ;; | |
129 | *) is_woe32=no ;; | |
130 | esac | |
131 | WOE32=$is_woe32 | |
132 | AC_SUBST([WOE32]) | |
133 | if test $WOE32 = yes; then | |
134 | dnl Check for a program that compiles Windows resource files. | |
135 | AC_CHECK_TOOL([WINDRES], [windres]) | |
136 | fi | |
137 | ||
138 | dnl Determine whether when creating a library, "-lc" should be passed to | |
139 | dnl libtool or not. On many platforms, it is required for the libtool option | |
140 | dnl -no-undefined to work. On HP-UX, however, the -lc - stored by libtool | |
141 | dnl in the *.la files - makes it impossible to create multithreaded programs, | |
142 | dnl because libtool also reorders the -lc to come before the -pthread, and | |
143 | dnl this disables pthread_create() <http://docs.hp.com/en/1896/pthreads.html>. | |
144 | case "$host_os" in | |
145 | hpux*) LTLIBC="" ;; | |
146 | *) LTLIBC="-lc" ;; | |
147 | esac | |
148 | AC_SUBST([LTLIBC]) | |
149 | ||
150 | dnl Rename some macros and functions used for locking. | |
151 | AH_BOTTOM([ | |
152 | #define __libc_lock_t gl_lock_t | |
153 | #define __libc_lock_define gl_lock_define | |
154 | #define __libc_lock_define_initialized gl_lock_define_initialized | |
155 | #define __libc_lock_init gl_lock_init | |
156 | #define __libc_lock_lock gl_lock_lock | |
157 | #define __libc_lock_unlock gl_lock_unlock | |
158 | #define __libc_lock_recursive_t gl_recursive_lock_t | |
159 | #define __libc_lock_define_recursive gl_recursive_lock_define | |
160 | #define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized | |
161 | #define __libc_lock_init_recursive gl_recursive_lock_init | |
162 | #define __libc_lock_lock_recursive gl_recursive_lock_lock | |
163 | #define __libc_lock_unlock_recursive gl_recursive_lock_unlock | |
164 | #define glthread_in_use libintl_thread_in_use | |
165 | #define glthread_lock_init_func libintl_lock_init_func | |
166 | #define glthread_lock_lock_func libintl_lock_lock_func | |
167 | #define glthread_lock_unlock_func libintl_lock_unlock_func | |
168 | #define glthread_lock_destroy_func libintl_lock_destroy_func | |
169 | #define glthread_rwlock_init_multithreaded libintl_rwlock_init_multithreaded | |
170 | #define glthread_rwlock_init_func libintl_rwlock_init_func | |
171 | #define glthread_rwlock_rdlock_multithreaded libintl_rwlock_rdlock_multithreaded | |
172 | #define glthread_rwlock_rdlock_func libintl_rwlock_rdlock_func | |
173 | #define glthread_rwlock_wrlock_multithreaded libintl_rwlock_wrlock_multithreaded | |
174 | #define glthread_rwlock_wrlock_func libintl_rwlock_wrlock_func | |
175 | #define glthread_rwlock_unlock_multithreaded libintl_rwlock_unlock_multithreaded | |
176 | #define glthread_rwlock_unlock_func libintl_rwlock_unlock_func | |
177 | #define glthread_rwlock_destroy_multithreaded libintl_rwlock_destroy_multithreaded | |
178 | #define glthread_rwlock_destroy_func libintl_rwlock_destroy_func | |
179 | #define glthread_recursive_lock_init_multithreaded libintl_recursive_lock_init_multithreaded | |
180 | #define glthread_recursive_lock_init_func libintl_recursive_lock_init_func | |
181 | #define glthread_recursive_lock_lock_multithreaded libintl_recursive_lock_lock_multithreaded | |
182 | #define glthread_recursive_lock_lock_func libintl_recursive_lock_lock_func | |
183 | #define glthread_recursive_lock_unlock_multithreaded libintl_recursive_lock_unlock_multithreaded | |
184 | #define glthread_recursive_lock_unlock_func libintl_recursive_lock_unlock_func | |
185 | #define glthread_recursive_lock_destroy_multithreaded libintl_recursive_lock_destroy_multithreaded | |
186 | #define glthread_recursive_lock_destroy_func libintl_recursive_lock_destroy_func | |
187 | #define glthread_once_func libintl_once_func | |
188 | #define glthread_once_singlethreaded libintl_once_singlethreaded | |
189 | #define glthread_once_multithreaded libintl_once_multithreaded | |
190 | ]) | |
191 | ]) | |
192 | ||
193 | ||
194 | dnl Checks for the core files of the intl subdirectory: | |
195 | dnl dcigettext.c | |
196 | dnl eval-plural.h | |
197 | dnl explodename.c | |
198 | dnl finddomain.c | |
199 | dnl gettextP.h | |
200 | dnl gmo.h | |
201 | dnl hash-string.h hash-string.c | |
202 | dnl l10nflist.c | |
203 | dnl libgnuintl.h.in (except the *printf stuff) | |
204 | dnl loadinfo.h | |
205 | dnl loadmsgcat.c | |
206 | dnl localealias.c | |
207 | dnl log.c | |
208 | dnl plural-exp.h plural-exp.c | |
209 | dnl plural.y | |
210 | dnl Used by libglocale. | |
211 | AC_DEFUN([gt_INTL_SUBDIR_CORE], | |
212 | [ | |
213 | AC_REQUIRE([AC_C_INLINE])dnl | |
214 | AC_REQUIRE([AC_TYPE_SIZE_T])dnl | |
215 | AC_REQUIRE([gl_AC_HEADER_STDINT_H]) | |
216 | AC_REQUIRE([AC_FUNC_ALLOCA])dnl | |
217 | AC_REQUIRE([AC_FUNC_MMAP])dnl | |
218 | AC_REQUIRE([gt_INTDIV0])dnl | |
219 | AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl | |
220 | AC_REQUIRE([gt_INTTYPES_PRI])dnl | |
221 | AC_REQUIRE([gl_LOCK])dnl | |
222 | ||
223 | AC_LINK_IFELSE( | |
224 | [AC_LANG_PROGRAM( | |
225 | [[int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }]], | |
226 | [[]])], | |
227 | [AC_DEFINE([HAVE_BUILTIN_EXPECT], [1], | |
228 | [Define to 1 if the compiler understands __builtin_expect.])]) | |
229 | ||
230 | AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h]) | |
231 | AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \ | |
232 | stpcpy strcasecmp strdup strtoul tsearch uselocale argz_count \ | |
233 | argz_stringify argz_next __fsetlocking]) | |
234 | ||
235 | dnl Use the *_unlocked functions only if they are declared. | |
236 | dnl (because some of them were defined without being declared in Solaris | |
237 | dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built | |
238 | dnl on Solaris 2.5.1 to run on Solaris 2.6). | |
239 | AC_CHECK_DECLS([feof_unlocked, fgets_unlocked], , , [#include <stdio.h>]) | |
240 | ||
241 | AM_ICONV | |
242 | ||
243 | dnl intl/plural.c is generated from intl/plural.y. It requires bison, | |
244 | dnl because plural.y uses bison specific features. It requires at least | |
245 | dnl bison-2.7 for %define api.pure. | |
246 | dnl bison is only needed for the maintainer (who touches plural.y). But in | |
247 | dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put | |
248 | dnl the rule in general Makefile. Now, some people carelessly touch the | |
249 | dnl files or have a broken "make" program, hence the plural.c rule will | |
250 | dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not | |
251 | dnl present or too old. | |
252 | AC_CHECK_PROGS([INTLBISON], [bison]) | |
253 | if test -z "$INTLBISON"; then | |
254 | ac_verc_fail=yes | |
255 | else | |
256 | dnl Found it, now check the version. | |
257 | AC_MSG_CHECKING([version of bison]) | |
258 | changequote(<<,>>)dnl | |
259 | ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'` | |
260 | case $ac_prog_version in | |
261 | '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; | |
262 | 2.[7-9]* | [3-9].*) | |
263 | changequote([,])dnl | |
264 | ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;; | |
265 | *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;; | |
266 | esac | |
267 | AC_MSG_RESULT([$ac_prog_version]) | |
268 | fi | |
269 | if test $ac_verc_fail = yes; then | |
270 | INTLBISON=: | |
271 | fi | |
272 | ]) | |
273 | ||
274 | dnl Copies _GL_UNUSED and _GL_ATTRIBUTE_PURE definitions from | |
275 | dnl gnulib-common.m4 as a fallback, if the project isn't using Gnulib. | |
276 | AC_DEFUN([gt_GL_ATTRIBUTE], [ | |
277 | m4_ifndef([gl_[]COMMON], | |
278 | AH_VERBATIM([gt_gl_attribute], | |
279 | [/* Define as a marker that can be attached to declarations that might not | |
280 | be used. This helps to reduce warnings, such as from | |
281 | GCC -Wunused-parameter. */ | |
282 | #ifndef _GL_UNUSED | |
283 | # if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) | |
284 | # define _GL_UNUSED __attribute__ ((__unused__)) | |
285 | # else | |
286 | # define _GL_UNUSED | |
287 | # endif | |
288 | #endif | |
289 | ||
290 | /* The __pure__ attribute was added in gcc 2.96. */ | |
291 | #ifndef _GL_ATTRIBUTE_PURE | |
292 | # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) | |
293 | # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) | |
294 | # else | |
295 | # define _GL_ATTRIBUTE_PURE /* empty */ | |
296 | # endif | |
297 | #endif | |
298 | ]))]) |