2008/11/11 Hugo Pacheco
When installing package haskell-src-exts via cabal install, I get the error Language/Haskell/Exts/Syntax.hs:102:7: Could not find module `Data.Data': it is a member of package base, which is hidden
However, when manually installing runhaskell Setup.hs configure/build/install It works fine Somehow package base is not available in cabal.. don't know why.
Like Brandon said, this is the case of cabal-install trying to be "clever" and picking base-3 as the default even when base-4 is available, while I in turn was trying to be "clever" in picking the right version of base depending on which compiler was used. I'm not sure who of us was actually the least clever, but in hindsight I think neither was a very good choice. I promised a new release when 6.10.1 proper was out, so here we go: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/haskell-src-exts-... Only change is that it will no longer work without the split base, explicitly expecting base >= 4. Cheers, /Niklas