I'm not 100% sure this patch is what we want (so I didn't link to the bug), but this looks promising (thanks to siretart on ubuntu-devel):
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=456934 -- Preinstalled Build-Depends not properly detected https://bugs.launchpad.net/bugs/178536 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs