$OpenBSD: patch-mutt_tunnel_c,v 1.2 2007/06/15 19:01:07 kili Exp $
--- mutt_tunnel.c.orig	Wed May 23 03:17:53 2007
+++ mutt_tunnel.c	Mon May 28 19:10:48 2007
@@ -91,7 +91,7 @@ static int tunnel_socket_open (CONNECTION *conn)
     /* Don't let the subprocess think it can use the controlling tty */
     setsid ();
 
-    execl (EXECSHELL, "sh", "-c", Tunnel, NULL);
+    execl (EXECSHELL, "sh", "-c", Tunnel, (void *)NULL);
     _exit (127);
   }
   mutt_unblock_signals_system (1);
