Comment 1 for bug 888665

The recommendation to use the aptitude resolver would make a lot more sense if the sbuild in launchpad-buildd had such a thing. So, I guess we have three possible courses of action here:

1) update the sbuild in launchpad-buildd (planned, but not currently a priority) and use different resolvers for different pockets (seems a bit sketchy)
2) Flip automatic installation on for backports on the buildds (may cause other issues, if we end up upgrading things we don't want)
3) Hack the current sbuild in lp-buildd to recognize the "build-dep not met but available in backports" situation and DTRT.