From 90d016980f47fb4f760be2356e715f92af9a7af8 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Tue, 3 Feb 2015 15:38:24 -0200
Subject: [PATCH] detail ('luaL_getmetatable' does not return a boolean, but a
 tag)

---
 lauxlib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lauxlib.c b/lauxlib.c
index 4197f6bf..cd32f555 100644
--- a/lauxlib.c
+++ b/lauxlib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lauxlib.c,v 1.278 2014/12/13 17:47:58 roberto Exp roberto $
+** $Id: lauxlib.c,v 1.279 2014/12/14 18:32:26 roberto Exp roberto $
 ** Auxiliary functions for building Lua libraries
 ** See Copyright Notice in lua.h
 */
@@ -286,7 +286,7 @@ LUALIB_API int luaL_execresult (lua_State *L, int stat) {
 */
 
 LUALIB_API int luaL_newmetatable (lua_State *L, const char *tname) {
-  if (luaL_getmetatable(L, tname))  /* name already in use? */
+  if (luaL_getmetatable(L, tname) != LUA_TNIL)  /* name already in use? */
     return 0;  /* leave previous value on top, but return 0 */
   lua_pop(L, 1);
   lua_newtable(L);  /* create metatable */