Control: user debian-...@lists.debian.org Control: usertag -1 + arm64 No experimentation seems to be required. Ubuntu's "xorp_1.8.6~wip.20160715-2ubuntu1" is identical to Debian's "xorp_1.8.6~wip.20160715-2" apart from debian/changelog and debian/control, where Ubuntu has "Architecture: any".
When I changed the Architecture to "any" in the Debian package it built in a Debian Stretch arm64 chroot.
