--- /dev/null
+Index: lua-5.1.3/src/lua.h
+===================================================================
+--- lua-5.1.3.orig/src/lua.h 2008-06-29 11:45:55.000000000 +0200
++++ lua-5.1.3/src/lua.h 2008-06-29 11:46:28.000000000 +0200
+@@ -79,7 +79,7 @@
+ * not acceptable for 5.1, maybe 5.2 onwards?
+ * 9: greater than existing (5.1) type values.
+ */
+-#define LUA_TINT (-2)
++#define LUA_TINT 9
+
+ #define LUA_TNIL 0
+ #define LUA_TBOOLEAN 1