FYI I just pushed a commit (cf http://ghc.haskell.org/trac/ghc/wiki/LateDmd) that changes the format of the .hi files — so it's safest to do a full rebuild once you pull it. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.haskell.org/pipermail/ghc-devs/attachments/20130829/2d2a217c/attachment.htm>