Status: New Owner: ---- New issue 506 by nathan.c...@gmail.com: cabal install xmonad-contrib --flags="-use_xft" fails with GHC 7.4.1 http://code.google.com/p/xmonad/issues/detail?id=506 What steps will reproduce the problem? 1. cabal install xmonad 2. cabal install xmonad-contrib --flags="-use_xft" What is the expected output? What do you see instead? Expect it to install, instead I get an error about needing -XDatatypeContexts. What version of the product are you using? On what operating system? xmonad-contrib-0.10 on Ubuntu 11.04 using GHC 7.4.1 Please provide any additional information below. I can successfully install by adding the suggested GHC option: cabal install xmonad-contrib --flags="-use_xft" --ghc-option=-XDatatypeContexts