1 # gettext.m4 serial 37 (gettext-0.14.4) 2 dnl Copyright (C) 1995-2005 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 (a] cygnus.com>, 1995-2000. 18 dnl Bruno Haible <haible (a] clisp.cons.org>, 2000-2003. 19 20 dnl Macro to add for using GNU gettext. 21 22 dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]). 23 dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The 24 dnl default (if it is not specified or empty) is 'no-libtool'. 25 dnl INTLSYMBOL should be 'external' for packages with no intl directory, 26 dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory. 27 dnl If INTLSYMBOL is 'use-libtool', then a libtool library 28 dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static, 29 dnl depending on --{enable,disable}-{shared,static} and on the presence of 30 dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library 31 dnl $(top_builddir)/intl/libintl.a will be created. 32 dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext 33 dnl implementations (in libc or libintl) without the ngettext() function 34 dnl will be ignored. If NEEDSYMBOL is specified and is 35 dnl 'need-formatstring-macros', then GNU gettext implementations that don't 36 dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored. 37 dnl INTLDIR is used to find the intl libraries. If empty, 38 dnl the value `$(top_builddir)/intl/' is used. 39 dnl 40 dnl The result of the configuration is one of three cases: 41 dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled 42 dnl and used. 43 dnl Catalog format: GNU --> install in $(datadir) 44 dnl Catalog extension: .mo after installation, .gmo in source tree 45 dnl 2) GNU gettext has been found in the system's C library. 46 dnl Catalog format: GNU --> install in $(datadir) 47 dnl Catalog extension: .mo after installation, .gmo in source tree 48 dnl 3) No internationalization, always use English msgid. 49 dnl Catalog format: none 50 dnl Catalog extension: none 51 dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur. 52 dnl The use of .gmo is historical (it was needed to avoid overwriting the 53 dnl GNU format catalogs when building on a platform with an X/Open gettext), 54 dnl but we keep it in order not to force irrelevant filename changes on the 55 dnl maintainers. 56 dnl 57 AC_DEFUN([AM_GNU_GETTEXT], 58 [ 59 dnl Argument checking. 60 ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], , 61 [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT 62 ])])])])]) 63 ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], , 64 [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT 65 ])])])]) 66 define([gt_included_intl], ifelse([$1], [external], [no], [yes])) 67 define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], [])) 68 69 AC_REQUIRE([AM_PO_SUBDIRS])dnl 70 ifelse(gt_included_intl, yes, [ 71 AC_REQUIRE([AM_INTL_SUBDIR])dnl 72 ]) 73 74 dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. 75 AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) 76 AC_REQUIRE([AC_LIB_RPATH]) 77 78 dnl Sometimes libintl requires libiconv, so first search for libiconv. 79 dnl Ideally we would do this search only after the 80 dnl if test "$USE_NLS" = "yes"; then 81 dnl if test "$gt_cv_func_gnugettext_libc" != "yes"; then 82 dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT 83 dnl the configure script would need to contain the same shell code 84 dnl again, outside any 'if'. There are two solutions: 85 dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'. 86 dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE. 87 dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not 88 dnl documented, we avoid it. 89 ifelse(gt_included_intl, yes, , [ 90 AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) 91 ]) 92 93 dnl Sometimes, on MacOS X, libintl requires linking with CoreFoundation. 94 gt_INTL_MACOSX 95 96 dnl Set USE_NLS. 97 AM_NLS 98 99 ifelse(gt_included_intl, yes, [ 100 BUILD_INCLUDED_LIBINTL=no 101 USE_INCLUDED_LIBINTL=no 102 ]) 103 LIBINTL= 104 LTLIBINTL= 105 POSUB= 106 107 dnl If we use NLS figure out what method 108 if test "$USE_NLS" = "yes"; then 109 gt_use_preinstalled_gnugettext=no 110 ifelse(gt_included_intl, yes, [ 111 AC_MSG_CHECKING([whether included gettext is requested]) 112 AC_ARG_WITH(included-gettext, 113 [ --with-included-gettext use the GNU gettext library included here], 114 nls_cv_force_use_gnu_gettext=$withval, 115 nls_cv_force_use_gnu_gettext=no) 116 AC_MSG_RESULT($nls_cv_force_use_gnu_gettext) 117 118 nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" 119 if test "$nls_cv_force_use_gnu_gettext" != "yes"; then 120 ]) 121 dnl User does not insist on using GNU NLS library. Figure out what 122 dnl to use. If GNU gettext is available we use this. Else we have 123 dnl to fall back to GNU NLS library. 124 125 dnl Add a version number to the cache macros. 126 define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1))) 127 define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc]) 128 define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl]) 129 130 AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc, 131 [AC_TRY_LINK([#include <libintl.h> 132 ]ifelse([$2], [need-formatstring-macros], 133 [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION 134 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) 135 #endif 136 changequote(,)dnl 137 typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; 138 changequote([,])dnl 139 ], [])[extern int _nl_msg_cat_cntr; 140 extern int *_nl_domain_bindings;], 141 [bindtextdomain ("", ""); 142 return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings], 143 gt_cv_func_gnugettext_libc=yes, 144 gt_cv_func_gnugettext_libc=no)]) 145 146 if test "$gt_cv_func_gnugettext_libc" != "yes"; then 147 dnl Sometimes libintl requires libiconv, so first search for libiconv. 148 ifelse(gt_included_intl, yes, , [ 149 AM_ICONV_LINK 150 ]) 151 dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL 152 dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv]) 153 dnl because that would add "-liconv" to LIBINTL and LTLIBINTL 154 dnl even if libiconv doesn't exist. 155 AC_LIB_LINKFLAGS_BODY([intl]) 156 AC_CACHE_CHECK([for GNU gettext in libintl], 157 gt_cv_func_gnugettext_libintl, 158 [gt_save_CPPFLAGS="$CPPFLAGS" 159 CPPFLAGS="$CPPFLAGS $INCINTL" 160 gt_save_LIBS="$LIBS" 161 LIBS="$LIBS $LIBINTL" 162 dnl Now see whether libintl exists and does not depend on libiconv. 163 AC_TRY_LINK([#include <libintl.h> 164 ]ifelse([$2], [need-formatstring-macros], 165 [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION 166 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) 167 #endif 168 changequote(,)dnl 169 typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; 170 changequote([,])dnl 171 ], [])[extern int _nl_msg_cat_cntr; 172 extern 173 #ifdef __cplusplus 174 "C" 175 #endif 176 const char *_nl_expand_alias (const char *);], 177 [bindtextdomain ("", ""); 178 return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias ("")], 179 gt_cv_func_gnugettext_libintl=yes, 180 gt_cv_func_gnugettext_libintl=no) 181 dnl Now see whether libintl exists and depends on libiconv. 182 if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then 183 LIBS="$LIBS $LIBICONV" 184 AC_TRY_LINK([#include <libintl.h> 185 ]ifelse([$2], [need-formatstring-macros], 186 [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION 187 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) 188 #endif 189 changequote(,)dnl 190 typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; 191 changequote([,])dnl 192 ], [])[extern int _nl_msg_cat_cntr; 193 extern 194 #ifdef __cplusplus 195 "C" 196 #endif 197 const char *_nl_expand_alias (const char *);], 198 [bindtextdomain ("", ""); 199 return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias ("")], 200 [LIBINTL="$LIBINTL $LIBICONV" 201 LTLIBINTL="$LTLIBINTL $LTLIBICONV" 202 gt_cv_func_gnugettext_libintl=yes 203 ]) 204 fi 205 CPPFLAGS="$gt_save_CPPFLAGS" 206 LIBS="$gt_save_LIBS"]) 207 fi 208 209 dnl If an already present or preinstalled GNU gettext() is found, 210 dnl use it. But if this macro is used in GNU gettext, and GNU 211 dnl gettext is already preinstalled in libintl, we update this 212 dnl libintl. (Cf. the install rule in intl/Makefile.in.) 213 if test "$gt_cv_func_gnugettext_libc" = "yes" \ 214 || { test "$gt_cv_func_gnugettext_libintl" = "yes" \ 215 && test "$PACKAGE" != gettext-runtime \ 216 && test "$PACKAGE" != gettext-tools; }; then 217 gt_use_preinstalled_gnugettext=yes 218 else 219 dnl Reset the values set by searching for libintl. 220 LIBINTL= 221 LTLIBINTL= 222 INCINTL= 223 fi 224 225 ifelse(gt_included_intl, yes, [ 226 if test "$gt_use_preinstalled_gnugettext" != "yes"; then 227 dnl GNU gettext is not found in the C library. 228 dnl Fall back on included GNU gettext library. 229 nls_cv_use_gnu_gettext=yes 230 fi 231 fi 232 233 if test "$nls_cv_use_gnu_gettext" = "yes"; then 234 dnl Mark actions used to generate GNU NLS library. 235 BUILD_INCLUDED_LIBINTL=yes 236 USE_INCLUDED_LIBINTL=yes 237 LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV" 238 LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV" 239 LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` 240 fi 241 242 CATOBJEXT= 243 if test "$gt_use_preinstalled_gnugettext" = "yes" \ 244 || test "$nls_cv_use_gnu_gettext" = "yes"; then 245 dnl Mark actions to use GNU gettext tools. 246 CATOBJEXT=.gmo 247 fi 248 ]) 249 250 if test -n "$INTL_MACOSX_LIBS"; then 251 if test "$gt_use_preinstalled_gnugettext" = "yes" \ 252 || test "$nls_cv_use_gnu_gettext" = "yes"; then 253 dnl Some extra flags are needed during linking. 254 LIBINTL="$LIBINTL $INTL_MACOSX_LIBS" 255 LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS" 256 fi 257 fi 258 259 if test "$gt_use_preinstalled_gnugettext" = "yes" \ 260 || test "$nls_cv_use_gnu_gettext" = "yes"; then 261 AC_DEFINE(ENABLE_NLS, 1, 262 [Define to 1 if translation of program messages to the user's native language 263 is requested.]) 264 else 265 USE_NLS=no 266 fi 267 fi 268 269 AC_MSG_CHECKING([whether to use NLS]) 270 AC_MSG_RESULT([$USE_NLS]) 271 if test "$USE_NLS" = "yes"; then 272 AC_MSG_CHECKING([where the gettext function comes from]) 273 if test "$gt_use_preinstalled_gnugettext" = "yes"; then 274 if test "$gt_cv_func_gnugettext_libintl" = "yes"; then 275 gt_source="external libintl" 276 else 277 gt_source="libc" 278 fi 279 else 280 gt_source="included intl directory" 281 fi 282 AC_MSG_RESULT([$gt_source]) 283 fi 284 285 if test "$USE_NLS" = "yes"; then 286 287 if test "$gt_use_preinstalled_gnugettext" = "yes"; then 288 if test "$gt_cv_func_gnugettext_libintl" = "yes"; then 289 AC_MSG_CHECKING([how to link with libintl]) 290 AC_MSG_RESULT([$LIBINTL]) 291 AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL]) 292 fi 293 294 dnl For backward compatibility. Some packages may be using this. 295 AC_DEFINE(HAVE_GETTEXT, 1, 296 [Define if the GNU gettext() function is already present or preinstalled.]) 297 AC_DEFINE(HAVE_DCGETTEXT, 1, 298 [Define if the GNU dcgettext() function is already present or preinstalled.]) 299 fi 300 301 dnl We need to process the po/ directory. 302 POSUB=po 303 fi 304 305 ifelse(gt_included_intl, yes, [ 306 dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL 307 dnl to 'yes' because some of the testsuite requires it. 308 if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then 309 BUILD_INCLUDED_LIBINTL=yes 310 fi 311 312 dnl Make all variables we use known to autoconf. 313 AC_SUBST(BUILD_INCLUDED_LIBINTL) 314 AC_SUBST(USE_INCLUDED_LIBINTL) 315 AC_SUBST(CATOBJEXT) 316 317 dnl For backward compatibility. Some configure.ins may be using this. 318 nls_cv_header_intl= 319 nls_cv_header_libgt= 320 321 dnl For backward compatibility. Some Makefiles may be using this. 322 DATADIRNAME=share 323 AC_SUBST(DATADIRNAME) 324 325 dnl For backward compatibility. Some Makefiles may be using this. 326 INSTOBJEXT=.mo 327 AC_SUBST(INSTOBJEXT) 328 329 dnl For backward compatibility. Some Makefiles may be using this. 330 GENCAT=gencat 331 AC_SUBST(GENCAT) 332 333 dnl For backward compatibility. Some Makefiles may be using this. 334 INTLOBJS= 335 if test "$USE_INCLUDED_LIBINTL" = yes; then 336 INTLOBJS="\$(GETTOBJS)" 337 fi 338 AC_SUBST(INTLOBJS) 339 340 dnl Enable libtool support if the surrounding package wishes it. 341 INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix 342 AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX) 343 ]) 344 345 dnl For backward compatibility. Some Makefiles may be using this. 346 INTLLIBS="$LIBINTL" 347 AC_SUBST(INTLLIBS) 348 349 dnl Make all documented variables known to autoconf. 350 AC_SUBST(LIBINTL) 351 AC_SUBST(LTLIBINTL) 352 AC_SUBST(POSUB) 353 ]) 354 355 356 dnl Checks for all prerequisites of the intl subdirectory, 357 dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS, 358 dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL. 359 AC_DEFUN([AM_INTL_SUBDIR], []) 360 361 362 dnl Checks for special options needed on MacOS X. 363 dnl Defines INTL_MACOSX_LIBS. 364 AC_DEFUN([gt_INTL_MACOSX], 365 [ 366 dnl Check for API introduced in MacOS X 10.2. 367 AC_CACHE_CHECK([for CFPreferencesCopyAppValue], 368 gt_cv_func_CFPreferencesCopyAppValue, 369 [gt_save_CPPFLAGS="$CPPFLAGS" 370 CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers" 371 gt_save_LIBS="$LIBS" 372 LIBS="$LIBS -framework CoreFoundation" 373 AC_TRY_LINK([#include <CFPreferences.h>], 374 [CFPreferencesCopyAppValue(NULL, NULL)], 375 [gt_cv_func_CFPreferencesCopyAppValue=yes], 376 [gt_cv_func_CFPreferencesCopyAppValue=no]) 377 CPPFLAGS="$gt_save_CPPFLAGS" 378 LIBS="$gt_save_LIBS"]) 379 if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then 380 AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], 1, 381 [Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in the CoreFoundation framework.]) 382 fi 383 dnl Check for API introduced in MacOS X 10.3. 384 AC_CACHE_CHECK([for CFLocaleCopyCurrent], gt_cv_func_CFLocaleCopyCurrent, 385 [gt_save_CPPFLAGS="$CPPFLAGS" 386 CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers" 387 gt_save_LIBS="$LIBS" 388 LIBS="$LIBS -framework CoreFoundation" 389 AC_TRY_LINK([#include <CFLocale.h>], [CFLocaleCopyCurrent();], 390 [gt_cv_func_CFLocaleCopyCurrent=yes], 391 [gt_cv_func_CFLocaleCopyCurrent=no]) 392 CPPFLAGS="$gt_save_CPPFLAGS" 393 LIBS="$gt_save_LIBS"]) 394 if test $gt_cv_func_CFLocaleCopyCurrent = yes; then 395 AC_DEFINE([HAVE_CFLOCALECOPYCURRENT], 1, 396 [Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the CoreFoundation framework.]) 397 fi 398 INTL_MACOSX_LIBS= 399 if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then 400 INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation" 401 fi 402 AC_SUBST([INTL_MACOSX_LIBS]) 403 ]) 404 405 406 dnl gt_CHECK_DECL(FUNC, INCLUDES) 407 dnl Check whether a function is declared. 408 AC_DEFUN([gt_CHECK_DECL], 409 [ 410 AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1, 411 [AC_TRY_COMPILE([$2], [ 412 #ifndef $1 413 char *p = (char *) $1; 414 #endif 415 ], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)]) 416 if test $ac_cv_have_decl_$1 = yes; then 417 gt_value=1 418 else 419 gt_value=0 420 fi 421 AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value], 422 [Define to 1 if you have the declaration of `$1', and to 0 if you don't.]) 423 ]) 424 425 426 dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version]) 427 AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) 428
