Trying to cross-build the vector package I get:

ghc-stage1: panic! (the 'impossible' happened) (GHC version 7.7.20130123 for arm-unknown-nto-qnx): Cant do annotations without GHCi {Data/Vector/Fusion/Stream/Monadic.hs:104:19-33} base:GHC.Exts.ForceSpecConstr{d r2Qv}

This is because the source uses a feature that cannot be supported in cross-compilation. The problematic line, however, can easily be removed. It would be very useful to have a CPP macro defined by GHC that can be used to enable/disable these sorts of features. -- Stephen Paul Weber, @singpolyma See http://singpolyma.net for how I prefer to be contacted edition right joseph