for i18n

Original commit message from CVS:
for i18n

diff --git a/m4/glib-gettext.m4 b/m4/glib-gettext.m4
new file mode 100644 (file)
index 0000000..703f178
--- /dev/null
+++ b/m4/glib-gettext.m4
@@ -0,0 +1,226 @@
+# Macro to add for using GNU gettext.
+# Ulrich Drepper <drepper@cygnus.com>, 1995.
+#
+# Modified to never use included libintl. 
+# Owen Taylor <otaylor@redhat.com>, 12/15/1998
+#
+#
+# This file can be copied and used freely without restrictions.  It can
+# be used in projects which are not available under the GNU Public License
+# but which still want to provide support for the GNU gettext functionality.
+# Please note that the actual code is *not* freely available.
+#
+#
+# If you make changes to this file, you MUST update the copy in
+# acinclude.m4. [ aclocal dies on duplicate macros, so if
+# we run 'aclocal -I macros/' then we'll run into problems
+# once we've installed glib-gettext.m4 :-( ]
+#
+
+# serial 5
+
+AC_DEFUN(AM_GLIB_WITH_NLS,
+  dnl NLS is obligatory
+  [USE_NLS=yes
+    AC_SUBST(USE_NLS)
+
+    dnl Figure out what method
+    nls_cv_force_use_gnu_gettext="no"
+
+    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 gettext or catgets are available (in this order) we
+      dnl use this.  Else we have to fall back to GNU NLS library.
+      dnl catgets is only used if permitted by option --with-catgets.
+      nls_cv_header_intl=
+      nls_cv_header_libgt=
+      CATOBJEXT=NONE
+
+      AC_CHECK_HEADER(libintl.h,
+        [AC_CACHE_CHECK([for dgettext in libc], gt_cv_func_dgettext_libc,
+         [AC_TRY_LINK([#include <libintl.h>], [return (int) dgettext ("","")],
+           gt_cv_func_dgettext_libc=yes, gt_cv_func_dgettext_libc=no)])
+
+         if test "$gt_cv_func_dgettext_libc" != "yes"; then
+           AC_CHECK_LIB(intl, bindtextdomain,
+             [AC_CACHE_CHECK([for dgettext in libintl],
+               gt_cv_func_dgettext_libintl,
+               [AC_CHECK_LIB(intl, dgettext,
+                 gt_cv_func_dgettext_libintl=yes,
+                 gt_cv_func_dgettext_libintl=no)],
+               gt_cv_func_dgettext_libintl=no)])
+         fi
+
+          if test "$gt_cv_func_dgettext_libintl" = "yes"; then
+           LIBS="$LIBS -lintl";
+          fi
+
+         if test "$gt_cv_func_dgettext_libc" = "yes" \
+           || test "$gt_cv_func_dgettext_libintl" = "yes"; then
+           AC_DEFINE(HAVE_GETTEXT,1,
+              [Define if the GNU gettext() function is already present or preinstalled.])
+           AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
+             [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
+           if test "$MSGFMT" != "no"; then
+             AC_CHECK_FUNCS(dcgettext)
+             AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
+             AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
+               [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
+             AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
+                            return _nl_msg_cat_cntr],
+               [CATOBJEXT=.gmo
+                DATADIRNAME=share],
+               [CATOBJEXT=.mo
+                DATADIRNAME=lib])
+             INSTOBJEXT=.mo
+           fi
+         fi
+
+         # Added by Martin Baulig 12/15/98 for libc5 systems
+         if test "$gt_cv_func_dgettext_libc" != "yes" \
+           && test "$gt_cv_func_dgettext_libintl" = "yes"; then
+           INTLLIBS=-lintl
+           LIBS=`echo $LIBS | sed -e 's/-lintl//'`
+         fi
+      ])
+
+      if test "$CATOBJEXT" = "NONE"; then
+        dnl Neither gettext nor catgets in included in the C library.
+        dnl Fall back on GNU gettext library.
+        nls_cv_use_gnu_gettext=yes
+      fi
+    fi
+
+    if test "$nls_cv_use_gnu_gettext" != "yes"; then
+      AC_DEFINE(ENABLE_NLS, 1,
+        [always defined to indicate that i18n is enabled])
+    else
+      dnl Unset this variable since we use the non-zero value as a flag.
+      CATOBJEXT=
+    fi
+
+    dnl Test whether we really found GNU xgettext.
+    if test "$XGETTEXT" != ":"; then
+      dnl If it is no GNU xgettext we define it as : so that the
+      dnl Makefiles still can work.
+      if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
+        : ;
+      else
+        AC_MSG_RESULT(
+         [found xgettext program is not GNU xgettext; ignore it])
+        XGETTEXT=":"
+      fi
+    fi
+
+    # We need to process the po/ directory.
+    POSUB=po
+
+    AC_OUTPUT_COMMANDS(
+      [case "$CONFIG_FILES" in *po/Makefile.in*)
+        sed -e "/POTFILES =/r po/POTFILES" po/Makefile.in > po/Makefile
+      esac])
+
+    dnl These rules are solely for the distribution goal.  While doing this
+    dnl we only have to keep exactly one list of the available catalogs
+    dnl in configure.in.
+    for lang in $ALL_LINGUAS; do
+      GMOFILES="$GMOFILES $lang.gmo"
+      POFILES="$POFILES $lang.po"
+    done
+
+    dnl Make all variables we use known to autoconf.
+    AC_SUBST(CATALOGS)
+    AC_SUBST(CATOBJEXT)
+    AC_SUBST(DATADIRNAME)
+    AC_SUBST(GMOFILES)
+    AC_SUBST(INSTOBJEXT)
+    AC_SUBST(INTLDEPS)
+    AC_SUBST(INTLLIBS)
+    AC_SUBST(INTLOBJS)
+    AC_SUBST(POFILES)
+    AC_SUBST(POSUB)
+  ])
+
+AC_DEFUN(AM_GLIB_GNU_GETTEXT,
+  [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+   AC_REQUIRE([AC_PROG_CC])dnl
+   AC_REQUIRE([AC_PROG_RANLIB])dnl
+   AC_REQUIRE([AC_HEADER_STDC])dnl
+   AC_REQUIRE([AC_C_CONST])dnl
+   AC_REQUIRE([AC_C_INLINE])dnl
+   AC_REQUIRE([AC_TYPE_OFF_T])dnl
+   AC_REQUIRE([AC_TYPE_SIZE_T])dnl
+   AC_REQUIRE([AC_FUNC_ALLOCA])dnl
+   AC_REQUIRE([AC_FUNC_MMAP])dnl
+
+   AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
+unistd.h sys/param.h])
+   AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
+strdup __argz_count __argz_stringify __argz_next])
+
+   AM_LC_MESSAGES
+   AM_GLIB_WITH_NLS
+
+   if test "x$CATOBJEXT" != "x"; then
+     if test "x$ALL_LINGUAS" = "x"; then
+       LINGUAS=
+     else
+       AC_MSG_CHECKING(for catalogs to be installed)
+       NEW_LINGUAS=
+       for lang in ${LINGUAS=$ALL_LINGUAS}; do
+         case "$ALL_LINGUAS" in
+          *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
+         esac
+       done
+       LINGUAS=$NEW_LINGUAS
+       AC_MSG_RESULT($LINGUAS)
+     fi
+
+     dnl Construct list of names of catalog files to be constructed.
+     if test -n "$LINGUAS"; then
+       for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
+     fi
+   fi
+
+   dnl Determine which catalog format we have (if any is needed)
+   dnl For now we know about two different formats:
+   dnl   Linux libc-5 and the normal X/Open format
+   test -d po || mkdir po
+   if test "$CATOBJEXT" = ".cat"; then
+     AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
+
+     dnl Transform the SED scripts while copying because some dumb SEDs
+     dnl cannot handle comments.
+     sed -e '/^#/d' $srcdir/po/$msgformat-msg.sed > po/po2msg.sed
+   fi
+
+   dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
+   dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
+   dnl Try to locate is.
+   MKINSTALLDIRS=
+   if test -n "$ac_aux_dir"; then
+     MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
+   fi
+   if test -z "$MKINSTALLDIRS"; then
+     MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
+   fi
+   AC_SUBST(MKINSTALLDIRS)
+
+   dnl Generate list of files to be processed by xgettext which will
+   dnl be included in po/Makefile.
+   test -d po || mkdir po
+   if test "x$srcdir" != "x."; then
+     if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
+       posrcprefix="$srcdir/"
+     else
+       posrcprefix="../$srcdir/"
+     fi
+   else
+     posrcprefix="../"
+   fi
+   rm -f po/POTFILES
+   sed -e "/^#/d" -e "/^\$/d" -e "s,.*,        $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
+       < $srcdir/po/POTFILES.in > po/POTFILES
+  ])
+