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list of things to watch out for when converting Haskell sources written for ghc-6.6 for compilation with ghc-6.8.

Thanks for the pointers. Luckily, only a few changes were needed, http://leiffrenzel.de/eclipse/wiki/doku.php?id=hare_with_gh-6.8 (sic). and most of them related to GHC API. I'm not completely sure whether it's semantically correct but at least it compiles. Best regards, J.W.