[Haskell] cabal-upload build problem

I want to upload a package to Hackage. I tried installing cabal-upload, but got the following error: ! Preprocessing executables for cabal-upload-0.2... ! Building cabal-upload-0.2... ! ! src/CabalUpload.hs:7:7: ! Could not find module `Distribution.Compat.FilePath': ! it is hidden (in package Cabal-1.1.6) I tried "ghc-pkg expose Cabal-1.1.6" without success. I have ghc-6.6 installed on Linux (Fedora Core 6), including Cabal-1.1.6. (BTW I know I will also need a user id and password. That was going to be my next step). Paul.