--- knopspoof.orig     2007-11-21 20:59:13.000000000 +0200
+++ knopspoof  2007-11-21 21:03:35.000000000 +0200
@@ -36,7 +36,7 @@
 # $Id: knopspoof 346 2005-09-13 02:23:08Z mbr $
 #
 
-use lib '/usr/lib/fwknop';
+use lib '%%PREFIX%%/lib/fwknop';
 use Net::RawIP;
 use strict;