functions may use many upvalues, to keep global values.

lua.stx

@@ -1,6 +1,6 @@
 %{
 /*
-** $Id: lua.stx,v 1.10 1997/10/15 20:16:00 roberto Exp roberto $
+** $Id: lua.stx,v 1.11 1997/10/16 10:59:34 roberto Exp roberto $
 ** Syntax analizer and code generator
 ** See Copyright Notice in lua.h
 */
@@ -38,7 +38,7 @@ int luaY_parse (void);
 #define MAXSTATES  6
 
 /* maximum number of upvalues */
-#define MAXUPVALUES 8
+#define MAXUPVALUES 16
 
 /*
 ** Variable descriptor: if n>0, represents global variable indexed