---- mupdf-1.6-source/source/fitz/load-jpx.c~ 2013-08-14 14:41:20.000000000 +0200
-+++ mupdf-1.6-source/source/fitz/load-jpx.c 2014-11-04 22:47:25.217970803 +0100
-@@ -117,7 +117,7 @@
- opj_stream_set_read_function(stream, fz_opj_stream_read);
- opj_stream_set_skip_function(stream, fz_opj_stream_skip);
- opj_stream_set_seek_function(stream, fz_opj_stream_seek);
-- opj_stream_set_user_data(stream, &sb);
-+ opj_stream_set_user_data(stream, &sb, NULL);
- /* Set the length to avoid an assert */
- opj_stream_set_user_data_length(stream, size);
-