From 00fb7be3780af65e6441888a229c783d7de33189 Mon Sep 17 00:00:00 2001
From: Jani Taskinen <jani@php.net>
Date: Wed, 16 Jul 2008 16:23:59 +0000
Subject: [PATCH] MFH:- Prevent errors in CVS builds when bison is not there
 (for Sean :)

---
 configure.in | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/configure.in b/configure.in
index f8fef85c77..6d38a0fcce 100644
--- a/configure.in
+++ b/configure.in
@@ -151,6 +151,15 @@ PHP_PROG_AWK
 PHP_PROG_BISON
 PHP_PROG_LEX
 
+dnl Check if bison generated files exist when bison does not..
+case $php_cv_bison_version in
+  ""|invalid[)]
+    if ! test -f "$abs_srcdir/Zend/zend_language_parser.h" || ! test -f "$abs_srcdir/Zend/zend_language_parser.c" ; then
+      AC_MSG_ERROR([bison is required to build PHP/Zend when building a CVS checkout!])
+    fi
+    ;;
+esac
+
 dnl Platform-specific compile settings.
 dnl -------------------------------------------------------------------------
 
-- 
2.40.0