Marc Weber wrote: >> I do have GHC 6.10 still installed; but why does it not build >> against the new GHC? > > Because of a design decision Andres Loeh once made: > > try cat `which ghc`. You'll see that ghc finds the packages containing > ghc libraries by iterating over $PATH. Marc, did you see the command in the original message? It was `nix-env -- install cabal-install-0.8.0`, and the real question was "why nix-env -i cabal-install pulls cabal-install from ghc-6.10 packages?"
The answer is: because of "haskellPackages_ghc6122 = lowPrio" in all- packages.nix. You need to select haskellPackages_ghc6122.cabalInstall manually. And, as Marc said, it is not usefull to have two ghc versions in the same environment (at least, in the current setup). _______________________________________________ nix-dev mailing list nix-dev@cs.uu.nl https://mail.cs.uu.nl/mailman/listinfo/nix-dev
