m4/gettext.m4

   1 # gettext.m4 serial 14 (gettext-0.11.2)
   2 dnl Copyright (C) 1995-2002 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>, 2000-2002.
  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    $(top_builddir)/intl/libintl.a will be created.
  34 dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
  35 dnl    implementations (in libc or libintl) without the ngettext() function
  36 dnl    will be ignored.
  37 dnl INTLDIR is used to find the intl libraries.  If empty,
  38 dnl    the value `$(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], ,
  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([$1], [use-libtool], [l], []))
  68
  69   AC_REQUIRE([AM_PO_SUBDIRS])dnl
  70   ifelse(gt_included_intl, yes, [
  71     AC_REQUIRE([AM_INTL_SUBDIR])dnl
  72   ])
  73
  74   dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
  75   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
  76   AC_REQUIRE([AC_LIB_RPATH])
  77
  78   AC_MSG_CHECKING([whether NLS is requested])
  79   dnl Default is enabled NLS
  80   AC_ARG_ENABLE(nls,
  81     [  --disable-nls           do not use Native Language Support],
  82     USE_NLS=$enableval, USE_NLS=yes)
  83   AC_MSG_RESULT($USE_NLS)
  84   AC_SUBST(USE_NLS)
  85
  86   ifelse(gt_included_intl, yes, [
  87     BUILD_INCLUDED_LIBINTL=no
  88     USE_INCLUDED_LIBINTL=no
  89   ])
  90   LIBINTL=
  91   LTLIBINTL=
  92   POSUB=
  93
  94   dnl If we use NLS figure out what method
  95   if test "$USE_NLS" = "yes"; then
  96     gt_use_preinstalled_gnugettext=no
  97     ifelse(gt_included_intl, yes, [
  98       AC_MSG_CHECKING([whether included gettext is requested])
  99       AC_ARG_WITH(included-gettext,
 100         [  --with-included-gettext use the GNU gettext library included here],
 101         nls_cv_force_use_gnu_gettext=$withval,
 102         nls_cv_force_use_gnu_gettext=no)
 103       AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
 104
 105       nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
 106       if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
 107     ])
 108         dnl User does not insist on using GNU NLS library.  Figure out what
 109         dnl to use.  If GNU gettext is available we use this.  Else we have
 110         dnl to fall back to GNU NLS library.
 111
 112         dnl Add a version number to the cache macros.
 113         define([gt_api_version], ifelse([$2], [need-ngettext], 2, 1))
 114         define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
 115         define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
 116
 117         AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
 118          [AC_TRY_LINK([#include <libintl.h>
 119 extern int _nl_msg_cat_cntr;
 120 extern int *_nl_domain_bindings;],
 121             [bindtextdomain ("", "");
 122 return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
 123             gt_cv_func_gnugettext_libc=yes,
 124             gt_cv_func_gnugettext_libc=no)])
 125
 126         if test "$gt_cv_func_gnugettext_libc" != "yes"; then
 127           dnl Sometimes libintl requires libiconv, so first search for libiconv.
 128           ifelse(gt_included_intl, yes, , [
 129             AM_ICONV_LINK
 130           ])
 131           dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
 132           dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
 133           dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
 134           dnl even if libiconv doesn't exist.
 135           AC_LIB_LINKFLAGS_BODY([intl])
 136           AC_CACHE_CHECK([for GNU gettext in libintl],
 137             gt_cv_func_gnugettext_libintl,
 138            [gt_save_CPPFLAGS="$CPPFLAGS"
 139             CPPFLAGS="$CPPFLAGS $INCINTL"
 140             gt_save_LIBS="$LIBS"
 141             LIBS="$LIBS $LIBINTL"
 142             dnl Now see whether libintl exists and does not depend on libiconv.
 143             AC_TRY_LINK([#include <libintl.h>
 144 extern int _nl_msg_cat_cntr;
 145 extern
 146 #ifdef __cplusplus
 147 "C"
 148 #endif
 149 const char *_nl_expand_alias ();],
 150               [bindtextdomain ("", "");
 151 return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
 152               gt_cv_func_gnugettext_libintl=yes,
 153               gt_cv_func_gnugettext_libintl=no)
 154             dnl Now see whether libintl exists and depends on libiconv.
 155             if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
 156               LIBS="$LIBS $LIBICONV"
 157               AC_TRY_LINK([#include <libintl.h>
 158 extern int _nl_msg_cat_cntr;
 159 extern
 160 #ifdef __cplusplus
 161 "C"
 162 #endif
 163 const char *_nl_expand_alias ();],
 164                 [bindtextdomain ("", "");
 165 return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
 166                [LIBINTL="$LIBINTL $LIBICONV"
 167                 LTLIBINTL="$LTLIBINTL $LTLIBICONV"
 168                 gt_cv_func_gnugettext_libintl=yes
 169                ])
 170             fi
 171             CPPFLAGS="$gt_save_CPPFLAGS"
 172             LIBS="$gt_save_LIBS"])
 173         fi
 174
 175         dnl If an already present or preinstalled GNU gettext() is found,
 176         dnl use it.  But if this macro is used in GNU gettext, and GNU
 177         dnl gettext is already preinstalled in libintl, we update this
 178         dnl libintl.  (Cf. the install rule in intl/Makefile.in.)
 179         if test "$gt_cv_func_gnugettext_libc" = "yes" \
 180            || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
 181                 && test "$PACKAGE" != gettext; }; then
 182           gt_use_preinstalled_gnugettext=yes
 183         else
 184           dnl Reset the values set by searching for libintl.
 185           LIBINTL=
 186           LTLIBINTL=
 187           INCINTL=
 188         fi
 189
 190     ifelse(gt_included_intl, yes, [
 191         if test "$gt_use_preinstalled_gnugettext" != "yes"; then
 192           dnl GNU gettext is not found in the C library.
 193           dnl Fall back on included GNU gettext library.
 194           nls_cv_use_gnu_gettext=yes
 195         fi
 196       fi
 197
 198       if test "$nls_cv_use_gnu_gettext" = "yes"; then
 199         dnl Mark actions used to generate GNU NLS library.
 200         INTLOBJS="\$(GETTOBJS)"
 201         BUILD_INCLUDED_LIBINTL=yes
 202         USE_INCLUDED_LIBINTL=yes
 203         LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
 204         LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
 205         LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
 206       fi
 207
 208       if test "$gt_use_preinstalled_gnugettext" = "yes" \
 209          || test "$nls_cv_use_gnu_gettext" = "yes"; then
 210         dnl Mark actions to use GNU gettext tools.
 211         CATOBJEXT=.gmo
 212       fi
 213     ])
 214
 215     if test "$gt_use_preinstalled_gnugettext" = "yes" \
 216        || test "$nls_cv_use_gnu_gettext" = "yes"; then
 217       AC_DEFINE(ENABLE_NLS, 1,
 218         [Define to 1 if translation of program messages to the user's native language
 219    is requested.])
 220     else
 221       USE_NLS=no
 222     fi
 223   fi
 224
 225   if test "$USE_NLS" = "yes"; then
 226
 227     if test "$gt_use_preinstalled_gnugettext" = "yes"; then
 228       if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
 229         AC_MSG_CHECKING([how to link with libintl])
 230         AC_MSG_RESULT([$LIBINTL])
 231         AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
 232       fi
 233
 234       dnl For backward compatibility. Some packages may be using this.
 235       AC_DEFINE(HAVE_GETTEXT, 1,
 236        [Define if the GNU gettext() function is already present or preinstalled.])
 237       AC_DEFINE(HAVE_DCGETTEXT, 1,
 238        [Define if the GNU dcgettext() function is already present or preinstalled.])
 239     fi
 240
 241     dnl We need to process the po/ directory.
 242     POSUB=po
 243   fi
 244
 245   ifelse(gt_included_intl, yes, [
 246     dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
 247     dnl to 'yes' because some of the testsuite requires it.
 248     if test "$PACKAGE" = gettext; then
 249       BUILD_INCLUDED_LIBINTL=yes
 250     fi
 251
 252     dnl Make all variables we use known to autoconf.
 253     AC_SUBST(BUILD_INCLUDED_LIBINTL)
 254     AC_SUBST(USE_INCLUDED_LIBINTL)
 255     AC_SUBST(CATOBJEXT)
 256     AC_SUBST(INTLOBJS)
 257
 258     dnl For backward compatibility. Some configure.ins may be using this.
 259     nls_cv_header_intl=
 260     nls_cv_header_libgt=
 261
 262     dnl For backward compatibility. Some Makefiles may be using this.
 263     DATADIRNAME=share
 264     AC_SUBST(DATADIRNAME)
 265
 266     dnl For backward compatibility. Some Makefiles may be using this.
 267     INSTOBJEXT=.mo
 268     AC_SUBST(INSTOBJEXT)
 269
 270     dnl For backward compatibility. Some Makefiles may be using this.
 271     GENCAT=gencat
 272     AC_SUBST(GENCAT)
 273
 274     dnl Enable libtool support if the surrounding package wishes it.
 275     INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
 276     AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
 277   ])
 278
 279   dnl For backward compatibility. Some Makefiles may be using this.
 280   INTLLIBS="$LIBINTL"
 281   AC_SUBST(INTLLIBS)
 282
 283   dnl Make all documented variables known to autoconf.
 284   AC_SUBST(LIBINTL)
 285   AC_SUBST(LTLIBINTL)
 286   AC_SUBST(POSUB)
 287 ])
 288
 289
 290 dnl Checks for all prerequisites of the po subdirectory,
 291 dnl except for USE_NLS.
 292 AC_DEFUN([AM_PO_SUBDIRS],
 293 [
 294   AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 295   AC_REQUIRE([AC_PROG_INSTALL])dnl
 296   AC_REQUIRE([AM_MKINSTALLDIRS])dnl
 297
 298   dnl Perform the following tests also if --disable-nls has been given,
 299   dnl because they are needed for "make dist" to work.
 300
 301   dnl Search for GNU msgfmt in the PATH.
 302   dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions.
 303   dnl The second test excludes FreeBSD msgfmt.
 304   AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
 305     [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1 &&
 306      (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
 307     :)
 308   AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
 309
 310   dnl Search for GNU xgettext 0.11 or newer in the PATH.
 311   dnl The first test excludes Solaris xgettext and early GNU xgettext versions.
 312   dnl The second test excludes FreeBSD xgettext.
 313   AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
 314     [$ac_dir/$ac_word --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 &&
 315      (if $ac_dir/$ac_word --omit-header --copyright-holder= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
 316     :)
 317   dnl Remove leftover from FreeBSD xgettext call.
 318   rm -f messages.po
 319
 320   dnl Search for GNU msgmerge 0.11 or newer in the PATH.
 321   AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge,
 322     [$ac_dir/$ac_word --update -q /dev/null /dev/null >/dev/null 2>&1], :)
 323
 324   dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
 325   dnl Test whether we really found GNU msgfmt.
 326   if test "$GMSGFMT" != ":"; then
 327     dnl If it is no GNU msgfmt we define it as : so that the
 328     dnl Makefiles still can work.
 329     if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 &&
 330        (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
 331       : ;
 332     else
 333       GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'`
 334       AC_MSG_RESULT(
 335         [found $GMSGFMT program is not GNU msgfmt; ignore it])
 336       GMSGFMT=":"
 337     fi
 338   fi
 339
 340   dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
 341   dnl Test whether we really found GNU xgettext.
 342   if test "$XGETTEXT" != ":"; then
 343     dnl If it is no GNU xgettext we define it as : so that the
 344     dnl Makefiles still can work.
 345     if $XGETTEXT --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 &&
 346        (if $XGETTEXT --omit-header --copyright-holder= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
 347       : ;
 348     else
 349       AC_MSG_RESULT(
 350         [found xgettext program is not GNU xgettext; ignore it])
 351       XGETTEXT=":"
 352     fi
 353     dnl Remove leftover from FreeBSD xgettext call.
 354     rm -f messages.po
 355   fi
 356
 357   AC_OUTPUT_COMMANDS([
 358     for ac_file in $CONFIG_FILES; do
 359       # Support "outfile[:infile[:infile...]]"
 360       case "$ac_file" in
 361         *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
 362       esac
 363       # PO directories have a Makefile.in generated from Makefile.in.in.
 364       case "$ac_file" in */Makefile.in)
 365         # Adjust a relative srcdir.
 366         ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
 367         ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
 368         ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
 369         # In autoconf-2.13 it is called $ac_given_srcdir.
 370         # In autoconf-2.50 it is called $srcdir.
 371         test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
 372         case "$ac_given_srcdir" in
 373           .)  top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
 374           /*) top_srcdir="$ac_given_srcdir" ;;
 375           *)  top_srcdir="$ac_dots$ac_given_srcdir" ;;
 376         esac
 377         if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
 378           rm -f "$ac_dir/POTFILES"
 379           test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
 380           cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[   ]*\$/d" -e "s,.*,     $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES"
 381           # ALL_LINGUAS, POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES depend
 382           # on $ac_dir but don't depend on user-specified configuration
 383           # parameters.
 384           if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
 385             # The LINGUAS file contains the set of available languages.
 386             if test -n "$ALL_LINGUAS"; then
 387               test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
 388             fi
 389             ALL_LINGUAS_=`sed -e "/^#/d" "$ac_given_srcdir/$ac_dir/LINGUAS"`
 390             # Hide the ALL_LINGUAS assigment from automake.
 391             eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
 392           fi
 393           case "$ac_given_srcdir" in
 394             .) srcdirpre= ;;
 395             *) srcdirpre='$(srcdir)/' ;;
 396           esac
 397           POFILES=
 398           GMOFILES=
 399           UPDATEPOFILES=
 400           DUMMYPOFILES=
 401           for lang in $ALL_LINGUAS; do
 402             POFILES="$POFILES $srcdirpre$lang.po"
 403             GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
 404             UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
 405             DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
 406           done
 407           # CATALOGS depends on both $ac_dir and the user's LINGUAS
 408           # environment variable.
 409           INST_LINGUAS=
 410           if test -n "$ALL_LINGUAS"; then
 411             for presentlang in $ALL_LINGUAS; do
 412               useit=no
 413               if test "%UNSET%" != "$LINGUAS"; then
 414                 desiredlanguages="$LINGUAS"
 415               else
 416                 desiredlanguages="$ALL_LINGUAS"
 417               fi
 418               for desiredlang in $desiredlanguages; do
 419                 # Use the presentlang catalog if desiredlang is
 420                 #   a. equal to presentlang, or
 421                 #   b. a variant of presentlang (because in this case,
 422                 #      presentlang can be used as a fallback for messages
 423                 #      which are not translated in the desiredlang catalog).
 424                 case "$desiredlang" in
 425                   "$presentlang"*) useit=yes;;
 426                 esac
 427               done
 428               if test $useit = yes; then
 429                 INST_LINGUAS="$INST_LINGUAS $presentlang"
 430               fi
 431             done
 432           fi
 433           CATALOGS=
 434           if test -n "$INST_LINGUAS"; then
 435             for lang in $INST_LINGUAS; do
 436               CATALOGS="$CATALOGS $lang.gmo"
 437             done
 438           fi
 439           test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
 440           sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
 441           for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do
 442             if test -f "$f"; then
 443               case "$f" in
 444                 *.orig | *.bak | *~) ;;
 445                 *) cat "$f" >> "$ac_dir/Makefile" ;;
 446               esac
 447             fi
 448           done
 449         fi
 450         ;;
 451       esac
 452     done],
 453    [# Capture the value of obsolete $ALL_LINGUAS because we need it to compute
 454     # POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES, CATALOGS. But hide it
 455     # from automake.
 456     eval 'ALL_LINGUAS''="$ALL_LINGUAS"'
 457     # Capture the value of LINGUAS because we need it to compute CATALOGS.
 458     LINGUAS="${LINGUAS-%UNSET%}"
 459    ])
 460 ])
 461
 462
 463 dnl Checks for all prerequisites of the intl subdirectory,
 464 dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
 465 dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
 466 AC_DEFUN([AM_INTL_SUBDIR],
 467 [
 468   AC_REQUIRE([AC_PROG_INSTALL])dnl
 469   AC_REQUIRE([AM_MKINSTALLDIRS])dnl
 470   AC_REQUIRE([AC_PROG_CC])dnl
 471   AC_REQUIRE([AC_CANONICAL_HOST])dnl
 472   AC_REQUIRE([AC_PROG_RANLIB])dnl
 473   AC_REQUIRE([AC_ISC_POSIX])dnl
 474   AC_REQUIRE([AC_HEADER_STDC])dnl
 475   AC_REQUIRE([AC_C_CONST])dnl
 476   AC_REQUIRE([AC_C_INLINE])dnl
 477   AC_REQUIRE([AC_TYPE_OFF_T])dnl
 478   AC_REQUIRE([AC_TYPE_SIZE_T])dnl
 479   AC_REQUIRE([AC_FUNC_ALLOCA])dnl
 480   AC_REQUIRE([AC_FUNC_MMAP])dnl
 481   AC_REQUIRE([jm_GLIBC21])dnl
 482
 483   AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
 484 stdlib.h string.h unistd.h sys/param.h])
 485   AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \
 486 geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \
 487 strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next])
 488
 489   AM_ICONV
 490   AM_LANGINFO_CODESET
 491   AM_LC_MESSAGES
 492
 493   dnl intl/plural.c is generated from intl/plural.y. It requires bison,
 494   dnl because plural.y uses bison specific features. It requires at least
 495   dnl bison-1.26 because earlier versions generate a plural.c that doesn't
 496   dnl compile.
 497   dnl bison is only needed for the maintainer (who touches plural.y). But in
 498   dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
 499   dnl the rule in general Makefile. Now, some people carelessly touch the
 500   dnl files or have a broken "make" program, hence the plural.c rule will
 501   dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
 502   dnl present or too old.
 503   AC_CHECK_PROGS([INTLBISON], [bison])
 504   if test -z "$INTLBISON"; then
 505     ac_verc_fail=yes
 506   else
 507     dnl Found it, now check the version.
 508     AC_MSG_CHECKING([version of bison])
 509 changequote(<<,>>)dnl
 510     ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
 511     case $ac_prog_version in
 512       '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
 513       1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
 514 changequote([,])dnl
 515          ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
 516       *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
 517     esac
 518     AC_MSG_RESULT([$ac_prog_version])
 519   fi
 520   if test $ac_verc_fail = yes; then
 521     INTLBISON=:
 522   fi
 523 ])
 524
 525
 526 AC_DEFUN([AM_MKINSTALLDIRS],
 527 [
 528   dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
 529   dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
 530   dnl Try to locate is.
 531   MKINSTALLDIRS=
 532   if test -n "$ac_aux_dir"; then
 533     MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
 534   fi
 535   if test -z "$MKINSTALLDIRS"; then
 536     MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
 537   fi
 538   AC_SUBST(MKINSTALLDIRS)
 539 ])