diff -urN mapserver-6.0.0-rc1.old/mapscript/php/bool.h mapserver-6.0.0-rc1/mapscript/php/bool.h
--- mapserver-6.0.0-rc1.old/mapscript/php/bool.h	1970-01-01 01:00:00.000000000 +0100
+++ mapserver-6.0.0-rc1/mapscript/php/bool.h	2011-05-02 22:00:00.000000000 +0200
@@ -0,0 +1,8 @@
+#ifndef BOOL_H
+#define BOOL_H
+
+#define bool_t  int
+#define TRUE    1
+#define FALSE   0
+
+#endif /* BOOL_H */
diff -urN mapserver-6.0.0-rc1.old/mapscript/php/php_mapscript.h mapserver-6.0.0-rc1/mapscript/php/php_mapscript.h
--- mapserver-6.0.0-rc1.old/mapscript/php/php_mapscript.h	2011-05-02 12:10:03.000000000 +0200
+++ mapserver-6.0.0-rc1/mapscript/php/php_mapscript.h	2011-05-02 22:00:11.000000000 +0200
@@ -32,6 +32,7 @@
 #ifndef PHP_MAPSCRIPT_H
 #define PHP_MAPSCRIPT_H
 
+#include "bool.h"
 #include "php.h"
 #include "zend_interfaces.h"
 #include "php_mapscript_util.h"