X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/53b74c0c4c6d1b6e76d0816613dab5258ff9430d..459dd1a681b30ec258e27b1dbc7319ceddbf3532:/m4/gettext.m4

diff --git a/m4/gettext.m4 b/m4/gettext.m4
index 57c674c8..bbb0e9c7 100644
--- a/m4/gettext.m4
+++ b/m4/gettext.m4
@@ -2,11 +2,13 @@
 # Ulrich Drepper <drepper@cygnus.com>, 1995.
 #
 # 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.
+# be used in projects which are not available under the GNU General Public
+# License but which still want to provide support for the GNU gettext
+# functionality.
+# Please note that the actual code of GNU gettext is covered by the GNU
+# General Public License and is *not* in the public domain.
 
-# serial 9
+# serial 10
 
 dnl Usage: AM_WITH_NLS([TOOLSYMBOL], [NEEDSYMBOL], [LIBDIR]).
 dnl If TOOLSYMBOL is specified and is 'use-libtool', then a libtool library
@@ -117,14 +119,14 @@ return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", ""
 	     AC_CHECK_FUNCS(dcgettext)
 	     LIBS="$gt_save_LIBS"
 
+	     dnl Search for GNU msgfmt in the PATH.
 	     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_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
-	     fi
+	       [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
+	     AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
 
+	     dnl Search for GNU xgettext in the PATH.
 	     AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
-	       [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
+	       [$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
 
 	     CATOBJEXT=.gmo
 	   fi
@@ -141,10 +143,10 @@ return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", ""
         dnl Mark actions used to generate GNU NLS library.
         INTLOBJS="\$(GETTOBJS)"
         AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
-	  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
+	  [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
         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_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
         AC_SUBST(MSGFMT)
 	BUILD_INCLUDED_LIBINTL=yes
 	USE_INCLUDED_LIBINTL=yes
@@ -153,11 +155,26 @@ return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", ""
 	LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
       fi
 
+      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 $GMSGFMT --statistics /dev/null >/dev/null 2>&1; then
+	  : ;
+	else
+	  AC_MSG_RESULT(
+	    [found msgfmt program is not GNU msgfmt; ignore it])
+	  GMSGFMT=":"
+	fi
+      fi
+
+      dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
       dnl Test whether we really found GNU xgettext.
       if test "$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 /dev/null 2> /dev/null; then
+	if $XGETTEXT --omit-header /dev/null >/dev/null 2>&1; then
 	  : ;
 	else
 	  AC_MSG_RESULT(
@@ -181,6 +198,8 @@ return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", ""
           ac_dir=`echo "$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 $ac_dots|sed 's%/$%%'` ;;