remove unneeded AC_REQUIRE([AC_PROG_YACC])

thanks Peter Kokot for noticing

diff --git a/Zend/Zend.m4 b/Zend/Zend.m4
index f382c53c469ce85fd64cade79c6b58e46fcf587e..ad8c296cdf6b42650246d1f59dd86098c86c8bf2 100644 (file)
--- a/Zend/Zend.m4
+++ b/Zend/Zend.m4
@@ -4,7 +4,6 @@ dnl
 
 AC_DEFUN([LIBZEND_BASIC_CHECKS],[
 
-AC_REQUIRE([AC_PROG_YACC])
 AC_REQUIRE([AC_PROG_CC])
 
 LIBZEND_BISON_CHECK