From: MORIOKA Tomohiko <tomo.git@chise.org>
Date: Sat, 20 Apr 2013 10:55:13 +0000 (+0900)
Subject: (cos_release_symbol): Add check for builtin symbols.
X-Git-Url: http://git.chise.org/gitweb/?p=chise%2Fconcord.git;a=commitdiff_plain;h=699b570aa571b288dcb6532518dc8194ed0b70ec

(cos_release_symbol): Add check for builtin symbols.
---

diff --git a/symbol.c b/symbol.c
index bf6f2ce..e2d82fd 100644
--- a/symbol.c
+++ b/symbol.c
@@ -84,6 +84,9 @@ cos_release_symbol (COS_Object obj)
   if (obj == NULL)
     return 0;
 
+  if ( (obj == cos_Qnil) || (obj == cos_Qt) )
+    return 0;
+
   if ( ((COS_Symbol)obj)->value != NULL)
     cos_release_object (((COS_Symbol)obj)->value);