From 50b18f60cb31b361dff6af6cde8389352641d7c1 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 5 Nov 2014 16:55:43 -0200
Subject: detail

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

diff --git a/lstrlib.c b/lstrlib.c
index a5b0b15f..d2d05a80 100644
--- a/lstrlib.c
+++ b/lstrlib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lstrlib.c,v 1.213 2014/11/04 14:34:43 roberto Exp roberto $
+** $Id: lstrlib.c,v 1.214 2014/11/05 18:50:29 roberto Exp roberto $
 ** Standard library for string operations and pattern-matching
 ** See Copyright Notice in lua.h
 */
@@ -1146,7 +1146,7 @@ static void packint (luaL_Buffer *b, lua_Unsigned n,
     n >>= NB;
     buff[islittle ? i : size - 1 - i] = (char)(n & MC);
   }
-  if (neg) {  /* need sign extension (negative number)? */
+  if (neg && size > SZINT) {  /* negative number need sign extension? */
     for (i = SZINT; i < size; i++)  /* correct extra bytes */
       buff[islittle ? i : size - 1 - i] = (char)MC;
   }
-- 
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