--- dvdauthor-0.7.0.orig/src/spuunmux.c
+++ dvdauthor-0.7.0/src/spuunmux.c
@@ -38,6 +38,7 @@
 
 #include <netinet/in.h>
 
+#include <zlib.h>
 #include <png.h>
 
 #include "rgb.h"
@@ -610,7 +611,11 @@
         png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
         return -1;
       } /*if*/
+#if PNG_LIBPNG_VER_MAJOR >= 1 && PNG_LIBPNG_VER_MINOR >= 4
+    if (setjmp(png_jmpbuf(png_ptr)))
+#else
     if (setjmp(png_ptr->jmpbuf))
+#endif
       {
         png_destroy_write_struct(&png_ptr, &info_ptr);
         fclose(fp);