Bug#489911: Bug #489911: Analysis, testcase

[Jonathan Nieder <jrnieder@gmail.com>]

>  * TODO: this means that if there's a build-dep on A|B and B is
>  * installed, we'll still try to install A; more importantly,
>  * if A is currently broken, we cannot go back and try B. To fix
>  * this would require we do a Resolve cycle for each package we
>  * add to the install list. Ugh

FYI:

http://bugs.debian.org/214566
http://thread.gmane.org/gmane.linux.debian.devel.dpkg.general/11363/focus=11397

Apparently, sbuild has the same problem.  And maybe this could be
fixed in one place, if an appropriate interface emerges for
dpkg-checkbuilddeps and higher level tools to communicate (well, I can
dream).

Jonathan