$OpenBSD: patch-CMakeModules_FindPNG_cmake,v 1.4 2012/10/12 21:44:51 sthen Exp $
--- CMakeModules/FindPNG.cmake.orig	Tue Oct  9 02:08:28 2012
+++ CMakeModules/FindPNG.cmake	Tue Oct  9 02:08:28 2012
@@ -22,6 +22,7 @@ SET(PNG_FOUND "NO")
 
 IF (ZLIB_FOUND)
   FIND_PATH(PNG_INCLUDE_DIR png.h
+    ${LOCALBASE}/include/libpng
     /usr/local/include
     /usr/include
     ${SOURCE_BASE_DIR}/libpng/include
