On Sat, Sep 10, 2011 at 09:39:59PM +0300, Michael Snoyman wrote: > I just built with those constraints, and I got no build errors. What > version of GHC and Cabal are you using? And is it possible you passed > extra build flags to any of those packages? ghc is 7.0.4, Cabal is 1.10.2, the only flag I see is test=False.