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thodg/libiconv/m4/gettext.m4

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  • Author : Bruno Haible
    Date : 2003-04-08 11:05:39
    Hash : 9c83e7cc
    Message : Update the autoconf macros, mostly from GNU gettext.

  • m4/gettext.m4
  • # gettext.m4 serial 19 (gettext-0.12)
    dnl Copyright (C) 1995-2003 Free Software Foundation, Inc.
    dnl This file is free software, distributed under the terms of the GNU
    dnl General Public License.  As a special exception to the GNU General
    dnl Public License, this file may be distributed as part of a program
    dnl that contains a configuration script generated by Autoconf, under
    dnl the same distribution terms as the rest of that program.
    dnl
    dnl This file can can be used in projects which are not available under
    dnl the GNU General Public License or the GNU Library General Public
    dnl License but which still want to provide support for the GNU gettext
    dnl functionality.
    dnl Please note that the actual code of the GNU gettext library is covered
    dnl by the GNU Library General Public License, and the rest of the GNU
    dnl gettext package package is covered by the GNU General Public License.
    dnl They are *not* in the public domain.
    
    dnl Authors:
    dnl   Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
    dnl   Bruno Haible <haible@clisp.cons.org>, 2000-2003.
    
    dnl Macro to add for using GNU gettext.
    
    dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
    dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
    dnl    default (if it is not specified or empty) is 'no-libtool'.
    dnl    INTLSYMBOL should be 'external' for packages with no intl directory,
    dnl    and 'no-libtool' or 'use-libtool' for packages with an intl directory.
    dnl    If INTLSYMBOL is 'use-libtool', then a libtool library
    dnl    $(top_builddir)/intl/libintl.la will be created (shared and/or static,
    dnl    depending on --{enable,disable}-{shared,static} and on the presence of
    dnl    AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
    dnl    $(top_builddir)/intl/libintl.a will be created.
    dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
    dnl    implementations (in libc or libintl) without the ngettext() function
    dnl    will be ignored.  If NEEDSYMBOL is specified and is
    dnl    'need-formatstring-macros', then GNU gettext implementations that don't
    dnl    support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
    dnl INTLDIR is used to find the intl libraries.  If empty,
    dnl    the value `$(top_builddir)/intl/' is used.
    dnl
    dnl The result of the configuration is one of three cases:
    dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
    dnl    and used.
    dnl    Catalog format: GNU --> install in $(datadir)
    dnl    Catalog extension: .mo after installation, .gmo in source tree
    dnl 2) GNU gettext has been found in the system's C library.
    dnl    Catalog format: GNU --> install in $(datadir)
    dnl    Catalog extension: .mo after installation, .gmo in source tree
    dnl 3) No internationalization, always use English msgid.
    dnl    Catalog format: none
    dnl    Catalog extension: none
    dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
    dnl The use of .gmo is historical (it was needed to avoid overwriting the
    dnl GNU format catalogs when building on a platform with an X/Open gettext),
    dnl but we keep it in order not to force irrelevant filename changes on the
    dnl maintainers.
    dnl
    AC_DEFUN([AM_GNU_GETTEXT],
    [
      dnl Argument checking.
      ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
        [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
    ])])])])])
      ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
        [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
    ])])])])
      define(gt_included_intl, ifelse([$1], [external], [no], [yes]))
      define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], []))
    
      AC_REQUIRE([AM_PO_SUBDIRS])dnl
      ifelse(gt_included_intl, yes, [
        AC_REQUIRE([AM_INTL_SUBDIR])dnl
      ])
    
      dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
      AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
      AC_REQUIRE([AC_LIB_RPATH])
    
      dnl Sometimes libintl requires libiconv, so first search for libiconv.
      dnl Ideally we would do this search only after the
      dnl      if test "$USE_NLS" = "yes"; then
      dnl        if test "$gt_cv_func_gnugettext_libc" != "yes"; then
      dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
      dnl the configure script would need to contain the same shell code
      dnl again, outside any 'if'. There are two solutions:
      dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
      dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
      dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
      dnl documented, we avoid it.
      ifelse(gt_included_intl, yes, , [
        AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
      ])
    
      AC_MSG_CHECKING([whether NLS is requested])
      dnl Default is enabled NLS
      AC_ARG_ENABLE(nls,
        [  --disable-nls           do not use Native Language Support],
        USE_NLS=$enableval, USE_NLS=yes)
      AC_MSG_RESULT($USE_NLS)
      AC_SUBST(USE_NLS)
    
      ifelse(gt_included_intl, yes, [
        BUILD_INCLUDED_LIBINTL=no
        USE_INCLUDED_LIBINTL=no
      ])
      LIBINTL=
      LTLIBINTL=
      POSUB=
    
      dnl If we use NLS figure out what method
      if test "$USE_NLS" = "yes"; then
        gt_use_preinstalled_gnugettext=no
        ifelse(gt_included_intl, yes, [
          AC_MSG_CHECKING([whether included gettext is requested])
          AC_ARG_WITH(included-gettext,
            [  --with-included-gettext use the GNU gettext library included here],
            nls_cv_force_use_gnu_gettext=$withval,
            nls_cv_force_use_gnu_gettext=no)
          AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
    
          nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
          if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
        ])
            dnl User does not insist on using GNU NLS library.  Figure out what
            dnl to use.  If GNU gettext is available we use this.  Else we have
            dnl to fall back to GNU NLS library.
    
            dnl Add a version number to the cache macros.
            define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
            define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
            define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
    
            AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
             [AC_TRY_LINK([#include <libintl.h>
    ]ifelse([$2], [need-formatstring-macros],
    [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
    #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
    #endif
    changequote(,)dnl
    typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
    changequote([,])dnl
    ], [])[extern int _nl_msg_cat_cntr;
    extern int *_nl_domain_bindings;],
                [bindtextdomain ("", "");
    return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
                gt_cv_func_gnugettext_libc=yes,
                gt_cv_func_gnugettext_libc=no)])
    
            if test "$gt_cv_func_gnugettext_libc" != "yes"; then
              dnl Sometimes libintl requires libiconv, so first search for libiconv.
              ifelse(gt_included_intl, yes, , [
                AM_ICONV_LINK
              ])
              dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
              dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
              dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
              dnl even if libiconv doesn't exist.
              AC_LIB_LINKFLAGS_BODY([intl])
              AC_CACHE_CHECK([for GNU gettext in libintl],
                gt_cv_func_gnugettext_libintl,
               [gt_save_CPPFLAGS="$CPPFLAGS"
                CPPFLAGS="$CPPFLAGS $INCINTL"
                gt_save_LIBS="$LIBS"
                LIBS="$LIBS $LIBINTL"
                dnl Now see whether libintl exists and does not depend on libiconv.
                AC_TRY_LINK([#include <libintl.h>
    ]ifelse([$2], [need-formatstring-macros],
    [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
    #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
    #endif
    changequote(,)dnl
    typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
    changequote([,])dnl
    ], [])[extern int _nl_msg_cat_cntr;
    extern
    #ifdef __cplusplus
    "C"
    #endif
    const char *_nl_expand_alias ();],
                  [bindtextdomain ("", "");
    return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
                  gt_cv_func_gnugettext_libintl=yes,
                  gt_cv_func_gnugettext_libintl=no)
                dnl Now see whether libintl exists and depends on libiconv.
                if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
                  LIBS="$LIBS $LIBICONV"
                  AC_TRY_LINK([#include <libintl.h>
    ]ifelse([$2], [need-formatstring-macros],
    [#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
    #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
    #endif
    changequote(,)dnl
    typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
    changequote([,])dnl
    ], [])[extern int _nl_msg_cat_cntr;
    extern
    #ifdef __cplusplus
    "C"
    #endif
    const char *_nl_expand_alias ();],
                    [bindtextdomain ("", "");
    return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
                   [LIBINTL="$LIBINTL $LIBICONV"
                    LTLIBINTL="$LTLIBINTL $LTLIBICONV"
                    gt_cv_func_gnugettext_libintl=yes
                   ])
                fi
                CPPFLAGS="$gt_save_CPPFLAGS"
                LIBS="$gt_save_LIBS"])
            fi
    
            dnl If an already present or preinstalled GNU gettext() is found,
            dnl use it.  But if this macro is used in GNU gettext, and GNU
            dnl gettext is already preinstalled in libintl, we update this
            dnl libintl.  (Cf. the install rule in intl/Makefile.in.)
            if test "$gt_cv_func_gnugettext_libc" = "yes" \
               || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
                    && test "$PACKAGE" != gettext-runtime \
                    && test "$PACKAGE" != gettext-tools; }; then
              gt_use_preinstalled_gnugettext=yes
            else
              dnl Reset the values set by searching for libintl.
              LIBINTL=
              LTLIBINTL=
              INCINTL=
            fi
    
        ifelse(gt_included_intl, yes, [
            if test "$gt_use_preinstalled_gnugettext" != "yes"; then
              dnl GNU gettext is not found in the C library.
              dnl Fall back on included GNU gettext library.
              nls_cv_use_gnu_gettext=yes
            fi
          fi
    
          if test "$nls_cv_use_gnu_gettext" = "yes"; then
            dnl Mark actions used to generate GNU NLS library.
            BUILD_INCLUDED_LIBINTL=yes
            USE_INCLUDED_LIBINTL=yes
            LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
            LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
            LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
          fi
    
          if test "$gt_use_preinstalled_gnugettext" = "yes" \
             || test "$nls_cv_use_gnu_gettext" = "yes"; then
            dnl Mark actions to use GNU gettext tools.
            CATOBJEXT=.gmo
          fi
        ])
    
        if test "$gt_use_preinstalled_gnugettext" = "yes" \
           || test "$nls_cv_use_gnu_gettext" = "yes"; then
          AC_DEFINE(ENABLE_NLS, 1,
            [Define to 1 if translation of program messages to the user's native language
       is requested.])
        else
          USE_NLS=no
        fi
      fi
    
      AC_MSG_CHECKING([whether to use NLS])
      AC_MSG_RESULT([$USE_NLS])
      if test "$USE_NLS" = "yes"; then
        AC_MSG_CHECKING([where the gettext function comes from])
        if test "$gt_use_preinstalled_gnugettext" = "yes"; then
          if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
            gt_source="external libintl"
          else
            gt_source="libc"
          fi
        else
          gt_source="included intl directory"
        fi
        AC_MSG_RESULT([$gt_source])
      fi
    
      if test "$USE_NLS" = "yes"; then
    
        if test "$gt_use_preinstalled_gnugettext" = "yes"; then
          if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
            AC_MSG_CHECKING([how to link with libintl])
            AC_MSG_RESULT([$LIBINTL])
            AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
          fi
    
          dnl For backward compatibility. Some packages may be using this.
          AC_DEFINE(HAVE_GETTEXT, 1,
           [Define if the GNU gettext() function is already present or preinstalled.])
          AC_DEFINE(HAVE_DCGETTEXT, 1,
           [Define if the GNU dcgettext() function is already present or preinstalled.])
        fi
    
        dnl We need to process the po/ directory.
        POSUB=po
      fi
    
      ifelse(gt_included_intl, yes, [
        dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
        dnl to 'yes' because some of the testsuite requires it.
        if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
          BUILD_INCLUDED_LIBINTL=yes
        fi
    
        dnl Make all variables we use known to autoconf.
        AC_SUBST(BUILD_INCLUDED_LIBINTL)
        AC_SUBST(USE_INCLUDED_LIBINTL)
        AC_SUBST(CATOBJEXT)
    
        dnl For backward compatibility. Some configure.ins may be using this.
        nls_cv_header_intl=
        nls_cv_header_libgt=
    
        dnl For backward compatibility. Some Makefiles may be using this.
        DATADIRNAME=share
        AC_SUBST(DATADIRNAME)
    
        dnl For backward compatibility. Some Makefiles may be using this.
        INSTOBJEXT=.mo
        AC_SUBST(INSTOBJEXT)
    
        dnl For backward compatibility. Some Makefiles may be using this.
        GENCAT=gencat
        AC_SUBST(GENCAT)
    
        dnl For backward compatibility. Some Makefiles may be using this.
        if test "$USE_INCLUDED_LIBINTL" = yes; then
          INTLOBJS="\$(GETTOBJS)"
        fi
        AC_SUBST(INTLOBJS)
    
        dnl Enable libtool support if the surrounding package wishes it.
        INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
        AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
      ])
    
      dnl For backward compatibility. Some Makefiles may be using this.
      INTLLIBS="$LIBINTL"
      AC_SUBST(INTLLIBS)
    
      dnl Make all documented variables known to autoconf.
      AC_SUBST(LIBINTL)
      AC_SUBST(LTLIBINTL)
      AC_SUBST(POSUB)
    ])
    
    
    dnl Checks for all prerequisites of the po subdirectory,
    dnl except for USE_NLS.
    AC_DEFUN([AM_PO_SUBDIRS],
    [
      AC_REQUIRE([AC_PROG_MAKE_SET])dnl
      AC_REQUIRE([AC_PROG_INSTALL])dnl
      AC_REQUIRE([AM_MKINSTALLDIRS])dnl
    
      dnl Perform the following tests also if --disable-nls has been given,
      dnl because they are needed for "make dist" to work.
    
      dnl Search for GNU msgfmt in the PATH.
      dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions.
      dnl The second test excludes FreeBSD msgfmt.
      AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
        [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1 &&
         (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
        :)
      AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
    
      dnl Search for GNU xgettext 0.12 or newer in the PATH.
      dnl The first test excludes Solaris xgettext and early GNU xgettext versions.
      dnl The second test excludes FreeBSD xgettext.
      AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
        [$ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >/dev/null 2>&1 &&
         (if $ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
        :)
      dnl Remove leftover from FreeBSD xgettext call.
      rm -f messages.po
    
      dnl Search for GNU msgmerge 0.11 or newer in the PATH.
      AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge,
        [$ac_dir/$ac_word --update -q /dev/null /dev/null >/dev/null 2>&1], :)
    
      dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
      dnl Test whether we really found GNU msgfmt.
      if test "$GMSGFMT" != ":"; then
        dnl If it is no GNU msgfmt we define it as : so that the
        dnl Makefiles still can work.
        if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 &&
           (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
          : ;
        else
          GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'`
          AC_MSG_RESULT(
            [found $GMSGFMT program is not GNU msgfmt; ignore it])
          GMSGFMT=":"
        fi
      fi
    
      dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
      dnl Test whether we really found GNU xgettext.
      if test "$XGETTEXT" != ":"; then
        dnl If it is no GNU xgettext we define it as : so that the
        dnl Makefiles still can work.
        if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >/dev/null 2>&1 &&
           (if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
          : ;
        else
          AC_MSG_RESULT(
            [found xgettext program is not GNU xgettext; ignore it])
          XGETTEXT=":"
        fi
        dnl Remove leftover from FreeBSD xgettext call.
        rm -f messages.po
      fi
    
      AC_OUTPUT_COMMANDS([
        for ac_file in $CONFIG_FILES; do
          # Support "outfile[:infile[:infile...]]"
          case "$ac_file" in
            *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
          esac
          # PO directories have a Makefile.in generated from Makefile.in.in.
          case "$ac_file" in */Makefile.in)
            # Adjust a relative srcdir.
            ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
            ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
            ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
            # In autoconf-2.13 it is called $ac_given_srcdir.
            # In autoconf-2.50 it is called $srcdir.
            test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
            case "$ac_given_srcdir" in
              .)  top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
              /*) top_srcdir="$ac_given_srcdir" ;;
              *)  top_srcdir="$ac_dots$ac_given_srcdir" ;;
            esac
            if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
              rm -f "$ac_dir/POTFILES"
              test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
              cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ 	]*\$/d" -e "s,.*,     $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES"
              POMAKEFILEDEPS="POTFILES.in"
              # ALL_LINGUAS, POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES depend
              # on $ac_dir but don't depend on user-specified configuration
              # parameters.
              if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
                # The LINGUAS file contains the set of available languages.
                if test -n "$OBSOLETE_ALL_LINGUAS"; then
                  test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
                fi
                ALL_LINGUAS_=`sed -e "/^#/d" "$ac_given_srcdir/$ac_dir/LINGUAS"`
                # Hide the ALL_LINGUAS assigment from automake.
                eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
                POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS"
              else
                # The set of available languages was given in configure.in.
                eval 'ALL_LINGUAS''=$OBSOLETE_ALL_LINGUAS'
              fi
              case "$ac_given_srcdir" in
                .) srcdirpre= ;;
                *) srcdirpre='$(srcdir)/' ;;
              esac
              POFILES=
              GMOFILES=
              UPDATEPOFILES=
              DUMMYPOFILES=
              for lang in $ALL_LINGUAS; do
                POFILES="$POFILES $srcdirpre$lang.po"
                GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
                UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
                DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
              done
              # CATALOGS depends on both $ac_dir and the user's LINGUAS
              # environment variable.
              INST_LINGUAS=
              if test -n "$ALL_LINGUAS"; then
                for presentlang in $ALL_LINGUAS; do
                  useit=no
                  if test "%UNSET%" != "$LINGUAS"; then
                    desiredlanguages="$LINGUAS"
                  else
                    desiredlanguages="$ALL_LINGUAS"
                  fi
                  for desiredlang in $desiredlanguages; do
                    # Use the presentlang catalog if desiredlang is
                    #   a. equal to presentlang, or
                    #   b. a variant of presentlang (because in this case,
                    #      presentlang can be used as a fallback for messages
                    #      which are not translated in the desiredlang catalog).
                    case "$desiredlang" in
                      "$presentlang"*) useit=yes;;
                    esac
                  done
                  if test $useit = yes; then
                    INST_LINGUAS="$INST_LINGUAS $presentlang"
                  fi
                done
              fi
              CATALOGS=
              if test -n "$INST_LINGUAS"; then
                for lang in $INST_LINGUAS; do
                  CATALOGS="$CATALOGS $lang.gmo"
                done
              fi
              test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
              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@|$CATALOGS|g" -e "s|@POMAKEFILEDEPS@|$POMAKEFILEDEPS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
              for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do
                if test -f "$f"; then
                  case "$f" in
                    *.orig | *.bak | *~) ;;
                    *) cat "$f" >> "$ac_dir/Makefile" ;;
                  esac
                fi
              done
            fi
            ;;
          esac
        done],
       [# Capture the value of obsolete ALL_LINGUAS because we need it to compute
        # POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES, CATALOGS. But hide it
        # from automake.
        eval 'OBSOLETE_ALL_LINGUAS''="$ALL_LINGUAS"'
        # Capture the value of LINGUAS because we need it to compute CATALOGS.
        LINGUAS="${LINGUAS-%UNSET%}"
       ])
    ])
    
    
    dnl Checks for all prerequisites of the intl subdirectory,
    dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
    dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
    AC_DEFUN([AM_INTL_SUBDIR],
    [
      AC_REQUIRE([AC_PROG_INSTALL])dnl
      AC_REQUIRE([AM_MKINSTALLDIRS])dnl
      AC_REQUIRE([AC_PROG_CC])dnl
      AC_REQUIRE([AC_CANONICAL_HOST])dnl
      AC_REQUIRE([AC_PROG_RANLIB])dnl
      AC_REQUIRE([AC_ISC_POSIX])dnl
      AC_REQUIRE([AC_HEADER_STDC])dnl
      AC_REQUIRE([AC_C_CONST])dnl
      AC_REQUIRE([AC_C_INLINE])dnl
      AC_REQUIRE([AC_TYPE_OFF_T])dnl
      AC_REQUIRE([AC_TYPE_SIZE_T])dnl
      AC_REQUIRE([AC_FUNC_ALLOCA])dnl
      AC_REQUIRE([AC_FUNC_MMAP])dnl
      AC_REQUIRE([jm_GLIBC21])dnl
      AC_REQUIRE([gt_INTDIV0])dnl
      AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl
      AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl
      AC_REQUIRE([gt_INTTYPES_PRI])dnl
    
      AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
    stdlib.h string.h unistd.h sys/param.h])
      AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \
    geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \
    strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next \
    __fsetlocking])
    
      AM_ICONV
      AM_LANGINFO_CODESET
      if test $ac_cv_header_locale_h = yes; then
        AM_LC_MESSAGES
      fi
    
      dnl intl/plural.c is generated from intl/plural.y. It requires bison,
      dnl because plural.y uses bison specific features. It requires at least
      dnl bison-1.26 because earlier versions generate a plural.c that doesn't
      dnl compile.
      dnl bison is only needed for the maintainer (who touches plural.y). But in
      dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
      dnl the rule in general Makefile. Now, some people carelessly touch the
      dnl files or have a broken "make" program, hence the plural.c rule will
      dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
      dnl present or too old.
      AC_CHECK_PROGS([INTLBISON], [bison])
      if test -z "$INTLBISON"; then
        ac_verc_fail=yes
      else
        dnl Found it, now check the version.
        AC_MSG_CHECKING([version of bison])
    changequote(<<,>>)dnl
        ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
        case $ac_prog_version in
          '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
          1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
    changequote([,])dnl
             ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
          *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
        esac
        AC_MSG_RESULT([$ac_prog_version])
      fi
      if test $ac_verc_fail = yes; then
        INTLBISON=:
      fi
    ])
    
    
    AC_DEFUN([AM_MKINSTALLDIRS],
    [
      dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
      dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
      dnl Try to locate it.
      MKINSTALLDIRS=
      if test -n "$ac_aux_dir"; then
        case "$ac_aux_dir" in
          /*) MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs" ;;
          *) MKINSTALLDIRS="\$(top_builddir)/$ac_aux_dir/mkinstalldirs" ;;
        esac
      fi
      if test -z "$MKINSTALLDIRS"; then
        MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
      fi
      AC_SUBST(MKINSTALLDIRS)
    ])
    
    
    dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
    AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])