Udo Stenzel wrote: > - install exactly one version of cabal, 1.1.6.2, and *remove* all > others, > - ask ghc-pkg for the description of base, then edit Data.ByteString out > of that and re-register it,
I forgot, I also tried tar-1.0 on GHC 6.6, and had the same problem there. Even after updating Cabal, there was no way to install 'bytestring' due to the conflict with 'base'. A modified package description for 'base' helped. The reason that tar absolutely wants new stuff is 'instance MonadFix Get', which is not in binary-0.3. If you absolutely want users of GHC 6.6 to stick with binary-0.3, then you should provide a maintenance release binary-0.3.1. And we're back to Eternal Compatibility in Theory... -Udo
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