Hello, the same machine that previously built the BALL packages now fails in just the same way you are describing it. I cannot tell what it is. Upstream is informed and will certainly fix this at some point.
Many thanks for spotting this Steffen -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org