$NetBSD: patch-af,v 1.1 2006/08/19 22:52:23 abs Exp $

--- chunk.c.orig	1999-02-18 11:14:59.000000000 +0000
+++ chunk.c
@@ -122,7 +122,7 @@ void *ch_malloc(size_t numbytes, chunk_t
   
   ptr = ch->top;
   ch->free -= numbytes;
-  (char *)ch->top += numbytes;
+  ch->top = (char *)ch->top + numbytes;
 
   return ptr;
 }