Hi Deniz,
On Thu, Feb 5, 2009 at 00:11, Deniz Dogan
Sorry for those who receive this who have already gotten it from haskell-cafe.
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Hi
I'm currently working on "hacking" Data.Generics for my master thesis. I'm basically trying to find out whether it can be made any faster using e.g. rewrite rules.
Great! Please let us know of the results when you have them :-)
The problem I'm having is that I need an easy way to import my own modified version of Data.Generics (currently located in the same directory as my testing program) without unregistering or hiding syb-0.1.0.0 as base seems to depend on it.
I've read the GHC user manual trying to find nice ways to do this using a bunch of different parameters to ghc, but I can't figure it out. Does anyone here know?
I've had my own problems while developing a successor version of the syb package. For starters, cabal fails to install the package:
cabal install Resolving dependencies... cabal: dependencies conflict: base-3.0.3.0 requires syb ==0.1.0.0 however syb-0.1.0.0 was excluded because syb-0.2.0.0 was selected instead syb-0.1.0.0 was excluded because of the top level dependency syb ==0.2.0.0
Note that this package explicitly requires base >= 4.0. Anyway, runghc Setup.hs install does it, though. However, after having it installed I can't use it, getting this when any module imports Data.Generics: Bad interface file: C:\Program Files (x86)\Haskell\syb-0.2.0.0\ghc-6.10.1\Data\Generics.hi Something is amiss; requested module syb:Data.Generics differs from name found in the interface file syb-0.2.0.0:Data.Generics Failed, modules loaded: none. I talked about this on IRC before and remember this might have had something to do with syb having been unversioned in the release of GHC 6.10.1. But I hope someone can clarify this better... Cheers, Pedro
Any help appreciated, Deniz _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users