From d1ed2ab72ebb3cc10e45ef2b9ab0ad2ec3705c9f Mon Sep 17 00:00:00 2001
From: Dave Beazley <dave-swig@dabeaz.com>
Date: Tue, 4 Mar 2003 20:09:53 +0000
Subject: [PATCH] Minor patch contributed by Charles Schwieters.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@4429 626c5289-ae23-0410-ae9c-e8d60b6d4f22
---
 Lib/common.swg | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Lib/common.swg b/Lib/common.swg
index c35ecb3a0..7e36a9c4a 100644
--- a/Lib/common.swg
+++ b/Lib/common.swg
@@ -110,6 +110,7 @@ SWIG_TypeRegister(swig_type_info *ti)
     head = tc;
     tc++;
   }
+  if (next) next->prev = head;  /**/
   head->next = next;
   return ret;
 }
@@ -133,6 +134,7 @@ SWIG_TypeCheck(char *c, swig_type_info *ty)
       s->next = ty->next;
       if (ty->next) ty->next->prev = s;
       ty->next = s;
+      s->prev = ty;  /**/
       return s;
     }
     s = s->next;