$NetBSD: patch-ak,v 1.1 2006/02/23 20:49:49 joerg Exp $

--- mng.c.orig	2006-02-23 20:22:29.000000000 +0000
+++ mng.c
@@ -43,6 +43,8 @@ typedef struct {
 	mng_uint32	delay;     /* ticks to wait before resuming decode */
 } mngstuff;
 
+void mng_window_setup(mngstuff	*, int, int, int, int);
+
 /* callbacks for the mng decoder */
 
 /* memory allocation; data must be zeroed */