--- a/3rdparty/tinyxml/tinyxml.h
+++ b/3rdparty/tinyxml/tinyxml.h
@@ -39,6 +39,7 @@ distribution.
#include <string>
#include <iostream>
#include <sstream>
+#include "lstate.h"
// Help out windows:
#if defined( _DEBUG ) && !defined( DEBUG )