detail (avoid being picky about conversion from 'unsigned char'

to 'int')

lparser.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lparser.c,v 2.127 2012/05/08 13:53:33 roberto Exp roberto $
+** $Id: lparser.c,v 2.128 2012/05/20 14:51:23 roberto Exp roberto $
 ** Lua Parser
 ** See Copyright Notice in lua.h
 */
@@ -245,7 +245,7 @@ static int newupvalue (FuncState *fs, TString *name, expdesc *v) {
 
 static int searchvar (FuncState *fs, TString *n) {
   int i;
-  for (i=fs->nactvar-1; i >= 0; i--) {
+  for (i = cast_int(fs->nactvar) - 1; i >= 0; i--) {
     if (luaS_eqstr(n, getlocvar(fs, i)->varname))
       return i;
   }