[Haskell-cafe] compiling haskell-src-exts in 6.10

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. hugo -- www.di.uminho.pt/~hpacheco