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    1 # gettext.m4 serial 17 (gettext-0.11.5)
    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    $(top_builddir)/intl/libintl.a will be created.
   34 dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
   35 dnl    implementations (in libc or libintl) without the ngettext() function
   36 dnl    will be ignored.  If NEEDSYMBOL is specified and is
   37 dnl    'need-formatstring-macros', then GNU gettext implementations that don't
   38 dnl    support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
   39 dnl INTLDIR is used to find the intl libraries.  If empty,
   40 dnl    the value `$(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 "$gt_cv_func_gnugettext_libc" != "yes"; then
   84   dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
   85   dnl the configure script would need to contain the same shell code
   86   dnl again, outside any 'if'. There are two solutions:
   87   dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
   88   dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
   89   dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
   90   dnl documented, we avoid it.
   91   ifelse(gt_included_intl, yes, , [
   92     AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
   93   ])
   94 
   95   AC_MSG_CHECKING([whether NLS is requested])
   96   dnl Default is enabled NLS
   97   AC_ARG_ENABLE(nls,
   98     [  --disable-nls           do not use Native Language Support],
   99     USE_NLS=$enableval, USE_NLS=yes)
  100   AC_MSG_RESULT($USE_NLS)
  101   AC_SUBST(USE_NLS)
  102 
  103   ifelse(gt_included_intl, yes, [
  104     BUILD_INCLUDED_LIBINTL=no
  105     USE_INCLUDED_LIBINTL=no
  106   ])
  107   LIBINTL=
  108   LTLIBINTL=
  109   POSUB=
  110 
  111   dnl If we use NLS figure out what method
  112   if test "$USE_NLS" = "yes"; then
  113     gt_use_preinstalled_gnugettext=no
  114     ifelse(gt_included_intl, yes, [
  115       AC_MSG_CHECKING([whether included gettext is requested])
  116       AC_ARG_WITH(included-gettext,
  117         [  --with-included-gettext use the GNU gettext library included here],
  118         nls_cv_force_use_gnu_gettext=$withval,
  119         nls_cv_force_use_gnu_gettext=no)
  120       AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
  121 
  122       nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
  123       if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
  124     ])
  125         dnl User does not insist on using GNU NLS library.  Figure out what
  126         dnl to use.  If GNU gettext is available we use this.  Else we have
  127         dnl to fall back to GNU NLS library.
  128 
  129         dnl Add a version number to the cache macros.
  130         define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
  131         define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
  132         define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
  133 
  134         AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
  135          [AC_TRY_LINK([#include <libintl.h>
  136 ]ifelse([$2], [need-formatstring-macros],
  137 [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
  138 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
  139 #endif
  140 changequote(,)dnl
  141 typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
  142 changequote([,])dnl
  143 ], [])[extern int _nl_msg_cat_cntr;
  144 extern int *_nl_domain_bindings;],
  145             [bindtextdomain ("", "");
  146 return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
  147             gt_cv_func_gnugettext_libc=yes,
  148             gt_cv_func_gnugettext_libc=no)])
  149 
  150         if test "$gt_cv_func_gnugettext_libc" != "yes"; then
  151           dnl Sometimes libintl requires libiconv, so first search for libiconv.
  152           ifelse(gt_included_intl, yes, , [
  153             AM_ICONV_LINK
  154           ])
  155           dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
  156           dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
  157           dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
  158           dnl even if libiconv doesn't exist.
  159           AC_LIB_LINKFLAGS_BODY([intl])
  160           AC_CACHE_CHECK([for GNU gettext in libintl],
  161             gt_cv_func_gnugettext_libintl,
  162            [gt_save_CPPFLAGS="$CPPFLAGS"
  163             CPPFLAGS="$CPPFLAGS $INCINTL"
  164             gt_save_LIBS="$LIBS"
  165             LIBS="$LIBS $LIBINTL"
  166             dnl Now see whether libintl exists and does not depend on libiconv.
  167             AC_TRY_LINK([#include <libintl.h>
  168 ]ifelse([$2], [need-formatstring-macros],
  169 [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
  170 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
  171 #endif
  172 changequote(,)dnl
  173 typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
  174 changequote([,])dnl
  175 ], [])[extern int _nl_msg_cat_cntr;
  176 extern
  177 #ifdef __cplusplus
  178 "C"
  179 #endif
  180 const char *_nl_expand_alias ();],
  181               [bindtextdomain ("", "");
  182 return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
  183               gt_cv_func_gnugettext_libintl=yes,
  184               gt_cv_func_gnugettext_libintl=no)
  185             dnl Now see whether libintl exists and depends on libiconv.
  186             if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
  187               LIBS="$LIBS $LIBICONV"
  188               AC_TRY_LINK([#include <libintl.h>
  189 ]ifelse([$2], [need-formatstring-macros],
  190 [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
  191 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
  192 #endif
  193 changequote(,)dnl
  194 typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
  195 changequote([,])dnl
  196 ], [])[extern int _nl_msg_cat_cntr;
  197 extern
  198 #ifdef __cplusplus
  199 "C"
  200 #endif
  201 const char *_nl_expand_alias ();],
  202                 [bindtextdomain ("", "");
  203 return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
  204                [LIBINTL="$LIBINTL $LIBICONV"
  205                 LTLIBINTL="$LTLIBINTL $LTLIBICONV"
  206                 gt_cv_func_gnugettext_libintl=yes
  207                ])
  208             fi
  209             CPPFLAGS="$gt_save_CPPFLAGS"
  210             LIBS="$gt_save_LIBS"])
  211         fi
  212 
  213         dnl If an already present or preinstalled GNU gettext() is found,
  214         dnl use it.  But if this macro is used in GNU gettext, and GNU
  215         dnl gettext is already preinstalled in libintl, we update this
  216         dnl libintl.  (Cf. the install rule in intl/Makefile.in.)
  217         if test "$gt_cv_func_gnugettext_libc" = "yes" \
  218            || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
  219                 && test "$PACKAGE" != gettext; }; then
  220           gt_use_preinstalled_gnugettext=yes
  221         else
  222           dnl Reset the values set by searching for libintl.
  223           LIBINTL=
  224           LTLIBINTL=
  225           INCINTL=
  226         fi
  227 
  228     ifelse(gt_included_intl, yes, [
  229         if test "$gt_use_preinstalled_gnugettext" != "yes"; then
  230           dnl GNU gettext is not found in the C library.
  231           dnl Fall back on included GNU gettext library.
  232           nls_cv_use_gnu_gettext=yes
  233         fi
  234       fi
  235 
  236       if test "$nls_cv_use_gnu_gettext" = "yes"; then
  237         dnl Mark actions used to generate GNU NLS library.
  238         INTLOBJS="\$(GETTOBJS)"
  239         BUILD_INCLUDED_LIBINTL=yes
  240         USE_INCLUDED_LIBINTL=yes
  241         LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
  242         LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
  243         LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
  244       fi
  245 
  246       if test "$gt_use_preinstalled_gnugettext" = "yes" \
  247          || test "$nls_cv_use_gnu_gettext" = "yes"; then
  248         dnl Mark actions to use GNU gettext tools.
  249         CATOBJEXT=.gmo
  250       fi
  251     ])
  252 
  253     if test "$gt_use_preinstalled_gnugettext" = "yes" \
  254        || test "$nls_cv_use_gnu_gettext" = "yes"; then
  255       AC_DEFINE(ENABLE_NLS, 1,
  256         [Define to 1 if translation of program messages to the user's native language
  257    is requested.])
  258     else
  259       USE_NLS=no
  260     fi
  261   fi
  262 
  263   if test "$USE_NLS" = "yes"; then
  264 
  265     if test "$gt_use_preinstalled_gnugettext" = "yes"; then
  266       if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
  267         AC_MSG_CHECKING([how to link with libintl])
  268         AC_MSG_RESULT([$LIBINTL])
  269         AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
  270       fi
  271 
  272       dnl For backward compatibility. Some packages may be using this.
  273       AC_DEFINE(HAVE_GETTEXT, 1,
  274        [Define if the GNU gettext() function is already present or preinstalled.])
  275       AC_DEFINE(HAVE_DCGETTEXT, 1,
  276        [Define if the GNU dcgettext() function is already present or preinstalled.])
  277     fi
  278 
  279     dnl We need to process the po/ directory.
  280     POSUB=po
  281   fi
  282 
  283   ifelse(gt_included_intl, yes, [
  284     dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
  285     dnl to 'yes' because some of the testsuite requires it.
  286     if test "$PACKAGE" = gettext; then
  287       BUILD_INCLUDED_LIBINTL=yes
  288     fi
  289 
  290     dnl Make all variables we use known to autoconf.
  291     AC_SUBST(BUILD_INCLUDED_LIBINTL)
  292     AC_SUBST(USE_INCLUDED_LIBINTL)
  293     AC_SUBST(CATOBJEXT)
  294     AC_SUBST(INTLOBJS)
  295 
  296     dnl For backward compatibility. Some configure.ins may be using this.
  297     nls_cv_header_intl=
  298     nls_cv_header_libgt=
  299 
  300     dnl For backward compatibility. Some Makefiles may be using this.
  301     DATADIRNAME=share
  302     AC_SUBST(DATADIRNAME)
  303 
  304     dnl For backward compatibility. Some Makefiles may be using this.
  305     INSTOBJEXT=.mo
  306     AC_SUBST(INSTOBJEXT)
  307 
  308     dnl For backward compatibility. Some Makefiles may be using this.
  309     GENCAT=gencat
  310     AC_SUBST(GENCAT)
  311 
  312     dnl Enable libtool support if the surrounding package wishes it.
  313     INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
  314     AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
  315   ])
  316 
  317   dnl For backward compatibility. Some Makefiles may be using this.
  318   INTLLIBS="$LIBINTL"
  319   AC_SUBST(INTLLIBS)
  320 
  321   dnl Make all documented variables known to autoconf.
  322   AC_SUBST(LIBINTL)
  323   AC_SUBST(LTLIBINTL)
  324   AC_SUBST(POSUB)
  325 ])
  326 
  327 
  328 dnl Checks for all prerequisites of the po subdirectory,
  329 dnl except for USE_NLS.
  330 AC_DEFUN([AM_PO_SUBDIRS],
  331 [
  332   AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  333   AC_REQUIRE([AC_PROG_INSTALL])dnl
  334   AC_REQUIRE([AM_MKINSTALLDIRS])dnl
  335 
  336   dnl Perform the following tests also if --disable-nls has been given,
  337   dnl because they are needed for "make dist" to work.
  338 
  339   dnl Search for GNU msgfmt in the PATH.
  340   dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions.
  341   dnl The second test excludes FreeBSD msgfmt.
  342   AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
  343     [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1 &&
  344      (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
  345     :)
  346   AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
  347 
  348   dnl Search for GNU xgettext 0.11 or newer in the PATH.
  349   dnl The first test excludes Solaris xgettext and early GNU xgettext versions.
  350   dnl The second test excludes FreeBSD xgettext.
  351   AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
  352     [$ac_dir/$ac_word --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 &&
  353      (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)],
  354     :)
  355   dnl Remove leftover from FreeBSD xgettext call.
  356   rm -f messages.po
  357 
  358   dnl Search for GNU msgmerge 0.11 or newer in the PATH.
  359   AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge,
  360     [$ac_dir/$ac_word --update -q /dev/null /dev/null >/dev/null 2>&1], :)
  361 
  362   dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
  363   dnl Test whether we really found GNU msgfmt.
  364   if test "$GMSGFMT" != ":"; then
  365     dnl If it is no GNU msgfmt we define it as : so that the
  366     dnl Makefiles still can work.
  367     if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 &&
  368        (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
  369       : ;
  370     else
  371       GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'`
  372       AC_MSG_RESULT(
  373         [found $GMSGFMT program is not GNU msgfmt; ignore it])
  374       GMSGFMT=":"
  375     fi
  376   fi
  377 
  378   dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
  379   dnl Test whether we really found GNU xgettext.
  380   if test "$XGETTEXT" != ":"; then
  381     dnl If it is no GNU xgettext we define it as : so that the
  382     dnl Makefiles still can work.
  383     if $XGETTEXT --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 &&
  384        (if $XGETTEXT --omit-header --copyright-holder= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
  385       : ;
  386     else
  387       AC_MSG_RESULT(
  388         [found xgettext program is not GNU xgettext; ignore it])
  389       XGETTEXT=":"
  390     fi
  391     dnl Remove leftover from FreeBSD xgettext call.
  392     rm -f messages.po
  393   fi
  394 
  395   AC_OUTPUT_COMMANDS([
  396     for ac_file in $CONFIG_FILES; do
  397       # Support "outfile[:infile[:infile...]]"
  398       case "$ac_file" in
  399         *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  400       esac
  401       # PO directories have a Makefile.in generated from Makefile.in.in.
  402       case "$ac_file" in */Makefile.in)
  403         # Adjust a relative srcdir.
  404         ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
  405         ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
  406         ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
  407         # In autoconf-2.13 it is called $ac_given_srcdir.
  408         # In autoconf-2.50 it is called $srcdir.
  409         test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
  410         case "$ac_given_srcdir" in
  411           .)  top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
  412           /*) top_srcdir="$ac_given_srcdir" ;;
  413           *)  top_srcdir="$ac_dots$ac_given_srcdir" ;;
  414         esac
  415         if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
  416           rm -f "$ac_dir/POTFILES"
  417           test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
  418           cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ 	]*\$/d" -e "s,.*,     $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES"
  419           # ALL_LINGUAS, POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES depend
  420           # on $ac_dir but don't depend on user-specified configuration
  421           # parameters.
  422           if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
  423             # The LINGUAS file contains the set of available languages.
  424             if test -n "$ALL_LINGUAS"; then
  425               test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
  426             fi
  427             ALL_LINGUAS_=`sed -e "/^#/d" "$ac_given_srcdir/$ac_dir/LINGUAS"`
  428             # Hide the ALL_LINGUAS assigment from automake.
  429             eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
  430           fi
  431           case "$ac_given_srcdir" in
  432             .) srcdirpre= ;;
  433             *) srcdirpre='$(srcdir)/' ;;
  434           esac
  435           POFILES=
  436           GMOFILES=
  437           UPDATEPOFILES=
  438           DUMMYPOFILES=
  439           for lang in $ALL_LINGUAS; do
  440             POFILES="$POFILES $srcdirpre$lang.po"
  441             GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
  442             UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
  443             DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
  444           done
  445           # CATALOGS depends on both $ac_dir and the user's LINGUAS
  446           # environment variable.
  447           INST_LINGUAS=
  448           if test -n "$ALL_LINGUAS"; then
  449             for presentlang in $ALL_LINGUAS; do
  450               useit=no
  451               if test "%UNSET%" != "$LINGUAS"; then
  452                 desiredlanguages="$LINGUAS"
  453               else
  454                 desiredlanguages="$ALL_LINGUAS"
  455               fi
  456               for desiredlang in $desiredlanguages; do
  457                 # Use the presentlang catalog if desiredlang is
  458                 #   a. equal to presentlang, or
  459                 #   b. a variant of presentlang (because in this case,
  460                 #      presentlang can be used as a fallback for messages
  461                 #      which are not translated in the desiredlang catalog).
  462                 case "$desiredlang" in
  463                   "$presentlang"*) useit=yes;;
  464                 esac
  465               done
  466               if test $useit = yes; then
  467                 INST_LINGUAS="$INST_LINGUAS $presentlang"
  468               fi
  469             done
  470           fi
  471           CATALOGS=
  472           if test -n "$INST_LINGUAS"; then
  473             for lang in $INST_LINGUAS; do
  474               CATALOGS="$CATALOGS $lang.gmo"
  475             done
  476           fi
  477           test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
  478           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" > "$ac_dir/Makefile"
  479           for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do
  480             if test -f "$f"; then
  481               case "$f" in
  482                 *.orig | *.bak | *~) ;;
  483                 *) cat "$f" >> "$ac_dir/Makefile" ;;
  484               esac
  485             fi
  486           done
  487         fi
  488         ;;
  489       esac
  490     done],
  491    [# Capture the value of obsolete ALL_LINGUAS because we need it to compute
  492     # POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES, CATALOGS. But hide it
  493     # from automake.
  494     eval 'ALL_LINGUAS''="$ALL_LINGUAS"'
  495     # Capture the value of LINGUAS because we need it to compute CATALOGS.
  496     LINGUAS="${LINGUAS-%UNSET%}"
  497    ])
  498 ])
  499 
  500 
  501 dnl Checks for all prerequisites of the intl subdirectory,
  502 dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
  503 dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
  504 AC_DEFUN([AM_INTL_SUBDIR],
  505 [
  506   AC_REQUIRE([AC_PROG_INSTALL])dnl
  507   AC_REQUIRE([AM_MKINSTALLDIRS])dnl
  508   AC_REQUIRE([AC_PROG_CC])dnl
  509   AC_REQUIRE([AC_CANONICAL_HOST])dnl
  510   AC_REQUIRE([AC_PROG_RANLIB])dnl
  511   AC_REQUIRE([AC_ISC_POSIX])dnl
  512   AC_REQUIRE([AC_HEADER_STDC])dnl
  513   AC_REQUIRE([AC_C_CONST])dnl
  514   AC_REQUIRE([AC_C_INLINE])dnl
  515   AC_REQUIRE([AC_TYPE_OFF_T])dnl
  516   AC_REQUIRE([AC_TYPE_SIZE_T])dnl
  517   AC_REQUIRE([AC_FUNC_ALLOCA])dnl
  518   AC_REQUIRE([AC_FUNC_MMAP])dnl
  519   AC_REQUIRE([jm_GLIBC21])dnl
  520   AC_REQUIRE([gt_INTDIV0])dnl
  521   AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl
  522   AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl
  523   AC_REQUIRE([gt_INTTYPES_PRI])dnl
  524 
  525   AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
  526 stdlib.h string.h unistd.h sys/param.h])
  527   AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \
  528 geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \
  529 strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next])
  530 
  531   AM_ICONV
  532   AM_LANGINFO_CODESET
  533   if test $ac_cv_header_locale_h = yes; then
  534     AM_LC_MESSAGES
  535   fi
  536 
  537   dnl intl/plural.c is generated from intl/plural.y. It requires bison,
  538   dnl because plural.y uses bison specific features. It requires at least
  539   dnl bison-1.26 because earlier versions generate a plural.c that doesn't
  540   dnl compile.
  541   dnl bison is only needed for the maintainer (who touches plural.y). But in
  542   dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
  543   dnl the rule in general Makefile. Now, some people carelessly touch the
  544   dnl files or have a broken "make" program, hence the plural.c rule will
  545   dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
  546   dnl present or too old.
  547   AC_CHECK_PROGS([INTLBISON], [bison])
  548   if test -z "$INTLBISON"; then
  549     ac_verc_fail=yes
  550   else
  551     dnl Found it, now check the version.
  552     AC_MSG_CHECKING([version of bison])
  553 changequote(<<,>>)dnl
  554     ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
  555     case $ac_prog_version in
  556       '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
  557       1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
  558 changequote([,])dnl
  559          ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
  560       *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
  561     esac
  562     AC_MSG_RESULT([$ac_prog_version])
  563   fi
  564   if test $ac_verc_fail = yes; then
  565     INTLBISON=:
  566   fi
  567 ])
  568 
  569 
  570 AC_DEFUN([AM_MKINSTALLDIRS],
  571 [
  572   dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
  573   dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
  574   dnl Try to locate is.
  575   MKINSTALLDIRS=
  576   if test -n "$ac_aux_dir"; then
  577     MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
  578   fi
  579   if test -z "$MKINSTALLDIRS"; then
  580     MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
  581   fi
  582   AC_SUBST(MKINSTALLDIRS)
  583 ])
  584 
  585 
  586 dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
  587 AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])