$NetBSD: patch-my_png_cpp,v 1.1 2011/07/05 04:28:34 dholland Exp $

Update for png 1.5.

--- my_png.cpp~	2005-02-28 15:00:56.000000000 +0000
+++ my_png.cpp
@@ -58,7 +58,7 @@ void save_file(image_info* img, char* fi
         return;
     }
 
-    if (setjmp(png_ptr->jmpbuf)) {
+    if (setjmp(png_jmpbuf(png_ptr))) {
         fprintf(stderr, "Internal error in libpng\n");
         if (png_pal)
             delete[] png_pal;