Control: notfound -1 1.8.7-3 Looking at the buildd logs, it seems the regression is fairly new:
https://buildd.debian.org/status/fetch.php?pkg=gdcm&arch=i386&ver=2.4.3-1&stamp=1406705804 -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

