$NetBSD: patch-aa,v 1.1.1.1 2011/01/27 18:00:50 adam Exp $

--- src/graphic/surface.cpp.orig	2011-01-27 14:19:11.000000000 +0000
+++ src/graphic/surface.cpp
@@ -25,6 +25,7 @@
 #include <SDL_image.h>
 #include <SDL_rotozoom.h>
 #include <png.h>
+#include <zlib.h>
 
 #include "graphic/surface.h"
 #include "tool/math_tools.h"