--- dvdauthor-0.6.14/src/spuunmux.c.orig	2012-02-10 20:37:16.203921406 +0100
+++ dvdauthor-0.6.14/src/spuunmux.c	2012-02-10 20:37:51.200766465 +0100
@@ -35,6 +35,7 @@
 #include <netinet/in.h>
 
 #include <png.h>
+#include <zlib.h>
 
 #include "rgb.h"
 
@@ -460,7 +461,7 @@
 	return -1;
     }
 
-    if (setjmp(png_ptr->jmpbuf)) {
+    if (setjmp(png_jmpbuf(png_ptr))) {
 	png_destroy_write_struct(&png_ptr, &info_ptr);
 	fclose(fp);
 	return -1;