[Haskell-cafe] Need Cabal/library building help for windows

For reference, I'm using GHC6.8.1 on WinXP. I'm trying to package up some code into a library. But cabal fails to configure my project:

runhaskell setup.hs configure Configuring Prompt-1.0... setup.hs: ld is required but it could not be found.

Prompt.cabal contains: name: Prompt version: 1.0 cabal-version: >= 1.2 build-type: Simple library exposed-modules: Control.Monad.Prompt Does GHC require additional tools in order to build libraries on Win32? If so, I hope this can be remedied; it builds executables without additional tools after all. What do I need to do next? -- ryan