Hi Jonathan,
Akira, if you could check that the patch seems OK, that would be great. I've not really looked at dvipdfm-x code in a long time. I haven't pushed this it to TL yet, as it's all rather experimental, but I hope we can safely include it for TL'16.
Thanks very much. I think it is OK, so I installed as r39835. Thanks, Akira -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex