$NetBSD: patch-ab,v 1.1.1.1 2005/07/13 14:52:39 adam Exp $

--- opng.h.orig	2005-07-13 16:41:40.000000000 +0000
+++ opng.h
@@ -33,9 +33,6 @@
 
 #include "png.h"
 
-#if !(PNG_LIBPNG_BUILD_TYPE & PNG_LIBPNG_BUILD_PRIVATE)
-#error This program requires the BUNDLED libpng version 1.0.x-optipng
-#endif
 
 
 #define OPNG_IMAGE_REDUCTIONS_SUPPORTED  /* implemented here */
