Hello again, this was actually a regression from https://anonscm.debian.org/git/debian-xml-sgml/xml-core.git/commit/?id=fed34e01b5 That already used dh_perl -d, but this wasn't ported over to the new debian/rules.
Martin -- Martin Pitt | http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org)