From 3041e8ce9b128480317b91eb97fe64914d975a59 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 13 Apr 2011 20:14:20 +0200
Subject: [PATCH] make the avl node key const

---
 avl.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/avl.h b/avl.h
index a563716..46a396f 100644
--- a/avl.h
+++ b/avl.h
@@ -82,7 +82,7 @@ struct avl_node {
   /**
    * pointer to key of node
    */
-  void *key;
+  const void *key;
 
   /**
    * balance state of AVL tree (0,-1,+1)