Bug#1152747: fop: reproducible builds: Improve use of SOURCE_DATE_EPOCH for timestamps in PDF files

[Juan Manuel Méndez Rey]

Hi Vagrant,

Thanks for checking pam and treeview. I have sent the fix upstream:

https://issues.apache.org/jira/browse/FOP-3367
https://github.com/apache/xmlgraphics-fop/pull/132

Upstream has refused environment variables before, in
https://issues.apache.org/jira/browse/FOP-2854, so the
upstream patch does not read SOURCE_DATE_EPOCH. Instead it makes FOP use
the creation date set through its API for every date in the PDF,
including xmp:MetadataDate and the file /ID. The Debian patch stays until
upstream has something that covers SOURCE_DATE_EPOCH.

Regards,
Juan