$OpenBSD: patch-plug-ins_libart_export_png_c,v 1.1 2011/07/08 20:38:02 naddy Exp $
--- plug-ins/libart/export_png.c.orig	Mon Jul  4 22:35:43 2011
+++ plug-ins/libart/export_png.c	Mon Jul  4 22:36:02 2011
@@ -178,7 +178,7 @@ export_png_ok(GtkButton *button, gpointer userdata) 
   }
 
   /* set error handling ... */
-  if (setjmp(png->jmpbuf)) {
+  if (setjmp(png_jmpbuf(png))) {
     fclose(fp);
     png_destroy_write_struct(&png, &info);
     message_error(_("Error occurred while writing PNG"));
