On Tue, Dec 2, 2008 at 9:49 AM, Tobias Kräntzer
Hi,
I'm new to haskell and wonted to start tinkering a bit with this language, specifically with HXQ. I have installed ghc with macports.
Now while building HXQ I get the following error:
Main.hs:20:9: Not in scope: type constructor or class `C.SomeException'
Unfortunately I'm also new to Mac OS X. Before I developed on Linux. It would be great, if someone could give me a hint.
I think you should be able to build it if you manually download the .tar.gz file from Hackage and then type: runghc Setup configure runghc Setup build runghc Setup install The Control.Exception module was changed in ghc-6.10.1 (specifically, in the base-4 package). HXQ's code assumes that when compiling with ghc-6.10 you're always using base-4; however, that compiler also comes with base-3.0.3 which is a compatibility package providing the same interface as previous versions of ghc. The 'cabal install' program tries to be helpful and selects base-3.0.3 (since HXQ does not specify which to use), causing the above error. I've cc'd the package author on this. A possible fix would be to use the extensible-exceptions package, or otherwise just copy the logic from its .cabal file. -Judah