sbuild will not install a missing build-dep in some cases

[Michael Terry]

Consider the case of libio-socket-ip-perl in quantal as of this writing. It has a dependency like "libsocket-perl (>= 1.97) | perl (>= 5.15.6)". libsocket-perl's current version is 2.002-1 (which is fine). Perl's current version is 5.14.2-12 (which does not satisfy the check).

So sbuild correctly reports:

libsocket-perl: missing
perl: non-matching version installed (5.14.2-12 ! >= 5.15.6)

And then does not try to install libsocket-perl. Which I think is a clear bug? The build fails because it is dep waiting on libsocket-perl, despite it actually being available.

It seems that sbuild's dependency checker stops if part of an or-clause is already installed, regardless of whether it actually satisfies the requirements. I'd argue it should take that into account and attempt to install another part of the or-clause.

[Michael Terry (mterry)]

Switching to launchpad-buildd project after discovering that LP uses an old forked version of sbuild.

[Micah Gersten (micahg)]

This is a dupe of bug 594916.