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f19dd04a DD |
1 | # gettext.m4 serial 20 (gettext-0.12) |
2 | dnl Copyright (C) 1995-2003 Free Software Foundation, Inc. | |
3 | dnl This file is free software, distributed under the terms of the GNU | |
4 | dnl General Public License. As a special exception to the GNU General | |
5 | dnl Public License, this file may be distributed as part of a program | |
6 | dnl that contains a configuration script generated by Autoconf, under | |
7 | dnl the same distribution terms as the rest of that program. | |
8 | dnl | |
9 | dnl This file can can be used in projects which are not available under | |
10 | dnl the GNU General Public License or the GNU Library General Public | |
11 | dnl License but which still want to provide support for the GNU gettext | |
12 | dnl functionality. | |
13 | dnl Please note that the actual code of the GNU gettext library is covered | |
14 | dnl by the GNU Library General Public License, and the rest of the GNU | |
15 | dnl gettext package package is covered by the GNU General Public License. | |
16 | dnl They are *not* in the public domain. | |
17 | ||
18 | dnl Authors: | |
19 | dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000. | |
20 | dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003. | |
21 | ||
22 | dnl Macro to add for using GNU gettext. | |
23 | ||
24 | dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]). | |
25 | dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The | |
26 | dnl default (if it is not specified or empty) is 'no-libtool'. | |
27 | dnl INTLSYMBOL should be 'external' for packages with no intl directory, | |
28 | dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory. | |
29 | dnl If INTLSYMBOL is 'use-libtool', then a libtool library | |
30 | dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static, | |
31 | dnl depending on --{enable,disable}-{shared,static} and on the presence of | |
32 | dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library | |
33 | dnl $(top_builddir)/intl/libintl.a will be created. | |
34 | dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext | |
35 | dnl implementations (in libc or libintl) without the ngettext() function | |
36 | dnl will be ignored. If NEEDSYMBOL is specified and is | |
37 | dnl 'need-formatstring-macros', then GNU gettext implementations that don't | |
38 | dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored. | |
39 | dnl INTLDIR is used to find the intl libraries. If empty, | |
40 | dnl the value `$(top_builddir)/intl/' is used. | |
41 | dnl | |
42 | dnl The result of the configuration is one of three cases: | |
43 | dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled | |
44 | dnl and used. | |
45 | dnl Catalog format: GNU --> install in $(datadir) | |
46 | dnl Catalog extension: .mo after installation, .gmo in source tree | |
47 | dnl 2) GNU gettext has been found in the system's C library. | |
48 | dnl Catalog format: GNU --> install in $(datadir) | |
49 | dnl Catalog extension: .mo after installation, .gmo in source tree | |
50 | dnl 3) No internationalization, always use English msgid. | |
51 | dnl Catalog format: none | |
52 | dnl Catalog extension: none | |
53 | dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur. | |
54 | dnl The use of .gmo is historical (it was needed to avoid overwriting the | |
55 | dnl GNU format catalogs when building on a platform with an X/Open gettext), | |
56 | dnl but we keep it in order not to force irrelevant filename changes on the | |
57 | dnl maintainers. | |
58 | dnl | |
59 | AC_DEFUN([AM_GNU_GETTEXT], | |
60 | [ | |
61 | dnl Argument checking. | |
62 | ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], , | |
63 | [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT | |
64 | ])])])])]) | |
65 | ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], , | |
66 | [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT | |
67 | ])])])]) | |
68 | define(gt_included_intl, ifelse([$1], [external], [no], [yes])) | |
69 | define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], [])) | |
70 | ||
71 | AC_REQUIRE([AM_PO_SUBDIRS])dnl | |
72 | ifelse(gt_included_intl, yes, [ | |
73 | AC_REQUIRE([AM_INTL_SUBDIR])dnl | |
74 | ]) | |
75 | ||
76 | dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. | |
77 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) | |
78 | AC_REQUIRE([AC_LIB_RPATH]) | |
79 | ||
80 | dnl Sometimes libintl requires libiconv, so first search for libiconv. | |
81 | dnl Ideally we would do this search only after the | |
82 | dnl if test "$USE_NLS" = "yes"; then | |
83 | dnl if test "$gt_cv_func_gnugettext_libc" != "yes"; then | |
edb71a9c | 84 | dnl tests. But if configure.ac invokes AM_ICONV after AM_GNU_GETTEXT |
f19dd04a DD |
85 | dnl the configure script would need to contain the same shell code |
86 | dnl again, outside any 'if'. There are two solutions: | |
87 | dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'. | |
88 | dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE. | |
89 | dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not | |
90 | dnl documented, we avoid it. | |
91 | ifelse(gt_included_intl, yes, , [ | |
92 | AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) | |
93 | ]) | |
94 | ||
95 | dnl Set USE_NLS. | |
96 | AM_NLS | |
97 | ||
98 | ifelse(gt_included_intl, yes, [ | |
99 | BUILD_INCLUDED_LIBINTL=no | |
100 | USE_INCLUDED_LIBINTL=no | |
101 | ]) | |
102 | LIBINTL= | |
103 | LTLIBINTL= | |
104 | POSUB= | |
105 | ||
106 | dnl If we use NLS figure out what method | |
107 | if test "$USE_NLS" = "yes"; then | |
108 | gt_use_preinstalled_gnugettext=no | |
109 | ifelse(gt_included_intl, yes, [ | |
110 | AC_MSG_CHECKING([whether included gettext is requested]) | |
111 | AC_ARG_WITH(included-gettext, | |
112 | [ --with-included-gettext use the GNU gettext library included here], | |
113 | nls_cv_force_use_gnu_gettext=$withval, | |
114 | nls_cv_force_use_gnu_gettext=no) | |
115 | AC_MSG_RESULT($nls_cv_force_use_gnu_gettext) | |
116 | ||
117 | nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" | |
118 | if test "$nls_cv_force_use_gnu_gettext" != "yes"; then | |
119 | ]) | |
120 | dnl User does not insist on using GNU NLS library. Figure out what | |
121 | dnl to use. If GNU gettext is available we use this. Else we have | |
122 | dnl to fall back to GNU NLS library. | |
123 | ||
124 | dnl Add a version number to the cache macros. | |
125 | define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1))) | |
126 | define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc]) | |
127 | define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl]) | |
128 | ||
129 | AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc, | |
130 | [AC_TRY_LINK([#include <libintl.h> | |
90d3edf0 MF |
131 | #ifndef __GNU_GETTEXT_SUPPORTED_REVISION |
132 | extern int _nl_msg_cat_cntr; | |
133 | extern int *_nl_domain_bindings; | |
134 | #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_domain_bindings) | |
135 | #else | |
136 | #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 | |
137 | #endif | |
f19dd04a DD |
138 | ]ifelse([$2], [need-formatstring-macros], |
139 | [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION | |
140 | #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) | |
141 | #endif | |
142 | changequote(,)dnl | |
143 | typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; | |
144 | changequote([,])dnl | |
90d3edf0 | 145 | ], []), |
f19dd04a | 146 | [bindtextdomain ("", ""); |
90d3edf0 | 147 | return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + __GNU_GETTEXT_SYMBOL_EXPRESSION], |
f19dd04a DD |
148 | gt_cv_func_gnugettext_libc=yes, |
149 | gt_cv_func_gnugettext_libc=no)]) | |
150 | ||
151 | if test "$gt_cv_func_gnugettext_libc" != "yes"; then | |
152 | dnl Sometimes libintl requires libiconv, so first search for libiconv. | |
153 | ifelse(gt_included_intl, yes, , [ | |
154 | AM_ICONV_LINK | |
155 | ]) | |
156 | dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL | |
157 | dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv]) | |
158 | dnl because that would add "-liconv" to LIBINTL and LTLIBINTL | |
159 | dnl even if libiconv doesn't exist. | |
160 | AC_LIB_LINKFLAGS_BODY([intl]) | |
161 | AC_CACHE_CHECK([for GNU gettext in libintl], | |
162 | gt_cv_func_gnugettext_libintl, | |
163 | [gt_save_CPPFLAGS="$CPPFLAGS" | |
164 | CPPFLAGS="$CPPFLAGS $INCINTL" | |
165 | gt_save_LIBS="$LIBS" | |
166 | LIBS="$LIBS $LIBINTL" | |
167 | dnl Now see whether libintl exists and does not depend on libiconv. | |
168 | AC_TRY_LINK([#include <libintl.h> | |
90d3edf0 MF |
169 | #ifndef __GNU_GETTEXT_SUPPORTED_REVISION |
170 | extern int _nl_msg_cat_cntr; | |
171 | extern | |
172 | #ifdef __cplusplus | |
173 | "C" | |
174 | #endif | |
175 | const char *_nl_expand_alias (); | |
176 | #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias (0)) | |
177 | #else | |
178 | #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 | |
179 | #endif | |
f19dd04a DD |
180 | ]ifelse([$2], [need-formatstring-macros], |
181 | [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION | |
182 | #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) | |
183 | #endif | |
184 | changequote(,)dnl | |
185 | typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; | |
186 | changequote([,])dnl | |
90d3edf0 | 187 | ], []), |
f19dd04a | 188 | [bindtextdomain ("", ""); |
90d3edf0 | 189 | return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + __GNU_GETTEXT_SYMBOL_EXPRESSION], |
f19dd04a DD |
190 | gt_cv_func_gnugettext_libintl=yes, |
191 | gt_cv_func_gnugettext_libintl=no) | |
192 | dnl Now see whether libintl exists and depends on libiconv. | |
193 | if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then | |
194 | LIBS="$LIBS $LIBICONV" | |
195 | AC_TRY_LINK([#include <libintl.h> | |
90d3edf0 MF |
196 | #ifndef __GNU_GETTEXT_SUPPORTED_REVISION |
197 | extern int _nl_msg_cat_cntr; | |
198 | extern | |
199 | #ifdef __cplusplus | |
200 | "C" | |
201 | #endif | |
202 | const char *_nl_expand_alias (); | |
203 | #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias (0)) | |
204 | #else | |
205 | #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 | |
206 | #endif | |
f19dd04a DD |
207 | ]ifelse([$2], [need-formatstring-macros], |
208 | [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION | |
209 | #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) | |
210 | #endif | |
211 | changequote(,)dnl | |
212 | typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; | |
213 | changequote([,])dnl | |
90d3edf0 | 214 | ], []), |
f19dd04a | 215 | [bindtextdomain ("", ""); |
90d3edf0 | 216 | return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + __GNU_GETTEXT_SYMBOL_EXPRESSION], |
f19dd04a DD |
217 | [LIBINTL="$LIBINTL $LIBICONV" |
218 | LTLIBINTL="$LTLIBINTL $LTLIBICONV" | |
219 | gt_cv_func_gnugettext_libintl=yes | |
220 | ]) | |
221 | fi | |
222 | CPPFLAGS="$gt_save_CPPFLAGS" | |
223 | LIBS="$gt_save_LIBS"]) | |
224 | fi | |
225 | ||
226 | dnl If an already present or preinstalled GNU gettext() is found, | |
227 | dnl use it. But if this macro is used in GNU gettext, and GNU | |
228 | dnl gettext is already preinstalled in libintl, we update this | |
229 | dnl libintl. (Cf. the install rule in intl/Makefile.in.) | |
230 | if test "$gt_cv_func_gnugettext_libc" = "yes" \ | |
231 | || { test "$gt_cv_func_gnugettext_libintl" = "yes" \ | |
232 | && test "$PACKAGE" != gettext-runtime \ | |
233 | && test "$PACKAGE" != gettext-tools; }; then | |
234 | gt_use_preinstalled_gnugettext=yes | |
235 | else | |
236 | dnl Reset the values set by searching for libintl. | |
237 | LIBINTL= | |
238 | LTLIBINTL= | |
239 | INCINTL= | |
240 | fi | |
241 | ||
242 | ifelse(gt_included_intl, yes, [ | |
243 | if test "$gt_use_preinstalled_gnugettext" != "yes"; then | |
244 | dnl GNU gettext is not found in the C library. | |
245 | dnl Fall back on included GNU gettext library. | |
246 | nls_cv_use_gnu_gettext=yes | |
247 | fi | |
248 | fi | |
249 | ||
250 | if test "$nls_cv_use_gnu_gettext" = "yes"; then | |
251 | dnl Mark actions used to generate GNU NLS library. | |
252 | BUILD_INCLUDED_LIBINTL=yes | |
253 | USE_INCLUDED_LIBINTL=yes | |
254 | LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV" | |
255 | LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV" | |
256 | LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` | |
257 | fi | |
258 | ||
259 | if test "$gt_use_preinstalled_gnugettext" = "yes" \ | |
260 | || test "$nls_cv_use_gnu_gettext" = "yes"; then | |
261 | dnl Mark actions to use GNU gettext tools. | |
262 | CATOBJEXT=.gmo | |
263 | fi | |
264 | ]) | |
265 | ||
266 | if test "$gt_use_preinstalled_gnugettext" = "yes" \ | |
267 | || test "$nls_cv_use_gnu_gettext" = "yes"; then | |
268 | AC_DEFINE(ENABLE_NLS, 1, | |
269 | [Define to 1 if translation of program messages to the user's native language | |
270 | is requested.]) | |
271 | else | |
272 | USE_NLS=no | |
273 | fi | |
274 | fi | |
275 | ||
276 | AC_MSG_CHECKING([whether to use NLS]) | |
277 | AC_MSG_RESULT([$USE_NLS]) | |
278 | if test "$USE_NLS" = "yes"; then | |
279 | AC_MSG_CHECKING([where the gettext function comes from]) | |
280 | if test "$gt_use_preinstalled_gnugettext" = "yes"; then | |
281 | if test "$gt_cv_func_gnugettext_libintl" = "yes"; then | |
282 | gt_source="external libintl" | |
283 | else | |
284 | gt_source="libc" | |
285 | fi | |
86d22d06 | 286 | else |
f19dd04a | 287 | gt_source="included intl directory" |
86d22d06 | 288 | fi |
f19dd04a DD |
289 | AC_MSG_RESULT([$gt_source]) |
290 | fi | |
291 | ||
292 | if test "$USE_NLS" = "yes"; then | |
293 | ||
294 | if test "$gt_use_preinstalled_gnugettext" = "yes"; then | |
295 | if test "$gt_cv_func_gnugettext_libintl" = "yes"; then | |
296 | AC_MSG_CHECKING([how to link with libintl]) | |
297 | AC_MSG_RESULT([$LIBINTL]) | |
298 | AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL]) | |
299 | fi | |
300 | ||
301 | dnl For backward compatibility. Some packages may be using this. | |
302 | AC_DEFINE(HAVE_GETTEXT, 1, | |
303 | [Define if the GNU gettext() function is already present or preinstalled.]) | |
304 | AC_DEFINE(HAVE_DCGETTEXT, 1, | |
305 | [Define if the GNU dcgettext() function is already present or preinstalled.]) | |
306 | fi | |
307 | ||
308 | dnl We need to process the po/ directory. | |
309 | POSUB=po | |
310 | fi | |
311 | ||
312 | ifelse(gt_included_intl, yes, [ | |
313 | dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL | |
314 | dnl to 'yes' because some of the testsuite requires it. | |
315 | if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then | |
316 | BUILD_INCLUDED_LIBINTL=yes | |
317 | fi | |
318 | ||
319 | dnl Make all variables we use known to autoconf. | |
320 | AC_SUBST(BUILD_INCLUDED_LIBINTL) | |
321 | AC_SUBST(USE_INCLUDED_LIBINTL) | |
322 | AC_SUBST(CATOBJEXT) | |
323 | ||
edb71a9c | 324 | dnl For backward compatibility. Some configure.acs may be using this. |
f19dd04a DD |
325 | nls_cv_header_intl= |
326 | nls_cv_header_libgt= | |
327 | ||
328 | dnl For backward compatibility. Some Makefiles may be using this. | |
329 | DATADIRNAME=share | |
330 | AC_SUBST(DATADIRNAME) | |
331 | ||
332 | dnl For backward compatibility. Some Makefiles may be using this. | |
333 | INSTOBJEXT=.mo | |
334 | AC_SUBST(INSTOBJEXT) | |
335 | ||
336 | dnl For backward compatibility. Some Makefiles may be using this. | |
337 | GENCAT=gencat | |
338 | AC_SUBST(GENCAT) | |
339 | ||
340 | dnl For backward compatibility. Some Makefiles may be using this. | |
341 | if test "$USE_INCLUDED_LIBINTL" = yes; then | |
342 | INTLOBJS="\$(GETTOBJS)" | |
343 | fi | |
344 | AC_SUBST(INTLOBJS) | |
345 | ||
346 | dnl Enable libtool support if the surrounding package wishes it. | |
347 | INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix | |
348 | AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX) | |
349 | ]) | |
350 | ||
351 | dnl For backward compatibility. Some Makefiles may be using this. | |
352 | INTLLIBS="$LIBINTL" | |
353 | AC_SUBST(INTLLIBS) | |
354 | ||
355 | dnl Make all documented variables known to autoconf. | |
356 | AC_SUBST(LIBINTL) | |
357 | AC_SUBST(LTLIBINTL) | |
358 | AC_SUBST(POSUB) | |
359 | ]) | |
360 | ||
361 | ||
362 | dnl Checks for all prerequisites of the intl subdirectory, | |
363 | dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS, | |
364 | dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL. | |
365 | AC_DEFUN([AM_INTL_SUBDIR], | |
366 | [ | |
367 | AC_REQUIRE([AC_PROG_INSTALL])dnl | |
368 | AC_REQUIRE([AM_MKINSTALLDIRS])dnl | |
369 | AC_REQUIRE([AC_PROG_CC])dnl | |
370 | AC_REQUIRE([AC_CANONICAL_HOST])dnl | |
371 | AC_REQUIRE([AC_PROG_RANLIB])dnl | |
372 | AC_REQUIRE([AC_ISC_POSIX])dnl | |
373 | AC_REQUIRE([AC_HEADER_STDC])dnl | |
374 | AC_REQUIRE([AC_C_CONST])dnl | |
375 | AC_REQUIRE([AC_C_INLINE])dnl | |
376 | AC_REQUIRE([AC_TYPE_OFF_T])dnl | |
377 | AC_REQUIRE([AC_TYPE_SIZE_T])dnl | |
378 | AC_REQUIRE([AC_FUNC_ALLOCA])dnl | |
379 | AC_REQUIRE([AC_FUNC_MMAP])dnl | |
380 | AC_REQUIRE([jm_GLIBC21])dnl | |
381 | AC_REQUIRE([gt_INTDIV0])dnl | |
382 | AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl | |
383 | AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl | |
384 | AC_REQUIRE([gt_INTTYPES_PRI])dnl | |
385 | ||
386 | AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \ | |
387 | stdlib.h string.h unistd.h sys/param.h]) | |
388 | AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \ | |
389 | geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \ | |
390 | strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next \ | |
391 | __fsetlocking]) | |
392 | ||
393 | AM_ICONV | |
394 | AM_LANGINFO_CODESET | |
395 | if test $ac_cv_header_locale_h = yes; then | |
396 | AM_LC_MESSAGES | |
397 | fi | |
398 | ||
399 | dnl intl/plural.c is generated from intl/plural.y. It requires bison, | |
400 | dnl because plural.y uses bison specific features. It requires at least | |
401 | dnl bison-1.26 because earlier versions generate a plural.c that doesn't | |
402 | dnl compile. | |
403 | dnl bison is only needed for the maintainer (who touches plural.y). But in | |
404 | dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put | |
405 | dnl the rule in general Makefile. Now, some people carelessly touch the | |
406 | dnl files or have a broken "make" program, hence the plural.c rule will | |
407 | dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not | |
408 | dnl present or too old. | |
409 | AC_CHECK_PROGS([INTLBISON], [bison]) | |
410 | if test -z "$INTLBISON"; then | |
411 | ac_verc_fail=yes | |
412 | else | |
413 | dnl Found it, now check the version. | |
414 | AC_MSG_CHECKING([version of bison]) | |
415 | changequote(<<,>>)dnl | |
416 | ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'` | |
417 | case $ac_prog_version in | |
418 | '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; | |
419 | 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*) | |
420 | changequote([,])dnl | |
421 | ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;; | |
422 | *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;; | |
423 | esac | |
424 | AC_MSG_RESULT([$ac_prog_version]) | |
425 | fi | |
426 | if test $ac_verc_fail = yes; then | |
427 | INTLBISON=: | |
428 | fi | |
429 | ]) | |
430 | ||
431 | ||
432 | dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version]) | |
433 | AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) |