computing long-time uninstallable packages

[Filippo Giunchedi <filippo@debian.org>]

Hi,
is there a list of packages uninstallable (in sid for example) since a long time
(e.g >= 15-20 days)?

I first thought at edos.debian.net but it shows only differences with the run
before, which is nice but there are normal temporary breakages as the buildds
catch up.
Also on http://qa.debian.org/debcheck.php I couldn't find anything.
Showing long-time breakages would of course elimitate buildd "noise" and show
real breakages (e.g. libode0-dev).

TIA,
filippo