--- embedaddon/php/Zend/acinclude.m4	2013/10/14 08:02:46	1.1.1.4
+++ embedaddon/php/Zend/acinclude.m4	2014/06/15 20:04:03	1.1.1.5
@@ -1,4 +1,4 @@
-dnl $Id: acinclude.m4,v 1.1.1.4 2013/10/14 08:02:46 misho Exp $
+dnl $Id: acinclude.m4,v 1.1.1.5 2014/06/15 20:04:03 misho Exp $
 dnl
 dnl This file contains local autoconf functions.
 
@@ -12,7 +12,7 @@ AC_DEFUN([LIBZEND_BISON_CHECK],[
   bison_version=none
   if test "$YACC"; then
     AC_CACHE_CHECK([for bison version], php_cv_bison_version, [
-      bison_version_vars=`bison --version 2> /dev/null | grep 'GNU Bison' | cut -d ' ' -f 4 | $SED -e 's/\./ /' | tr -d a-z`
+      bison_version_vars=`$YACC --version 2> /dev/null | grep 'GNU Bison' | cut -d ' ' -f 4 | $SED -e 's/\./ /g' | tr -d a-z`
       php_cv_bison_version=invalid
       if test -n "$bison_version_vars"; then
         set $bison_version_vars