Hi Duncan and Thomas Thanks for the help, unfortunately: ----------------------------------------------------- allan@delgado:~$ ghc-pkg unregister --user Cabal-1.6.0.1 Writing new package config file... done. allan@delgado:~$ cabal install haddock Resolving dependencies... cabal: dependencies conflict: ghc-6.10.1 requires process ==1.0.1.1 however process-1.0.1.1 was excluded because ghc-6.10.1 requires process ==1.0.1.0 allan@delgado:~$ ghc-pkg unregister Cabal-1.6.0.1 ghc-pkg: unregistering Cabal-1.6.0.1 would break the following packages: haddock-2.3.0 ghc-6.10.1 (use -- ------------------------------------------------------ I tried to unregister haddock and then ghc and tried to re-register ghc (by doing 'make install' in the ghc source directory). Unfortunately this put me back in the same place again. To provide a bit more information this all comes from a recent upgrade to ghc-6.10.1. As you can see from the package listing in the previous mail, there aren't that many installed packages (over those installed by ghc). It seems a little strange that this is not a problem for everyone else. It looks to me (albeit inexperienced) that the error occurs during the ghc "make install" target, but then if that were the case I can't see why the same thing wouldn't happen to everyone. regards allan Duncan Coutts wrote:
On Mon, 2008-11-24 at 20:05 +0000, Thomas Schilling wrote:
Could it be that the cabal gets confused because there are two versions of Cabal-1.6.0.1 but which probably depend on two different versions of process?
That could well be it. The user and global package dbs simply get overlayed so identical package versions in the user-db mask ones in the global db. So that would indeed mean that cabal would think that the ghc global package depended on the Cabal package from the user db, which is built against the different version of the process lib.
So the workaround for Allan would be to unregister the Cabal-1.6.0.1 from the user db: ghc-pkg unregister --user Cabal-1.6.0.1 and probably to rebuild anything that depends on it.
We'll have to think about if there's a better way to manage this. In the longer term I'd like to use hashes to identify installed packages but for now...
Duncan
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