Can't find parsec

I am trying to incorporate Dana Xu's static contract checking code into ghc 6.11. I've run into a problem that puzzles me. I am getting the following error message: verify/SimplIface.lhs:16:7: Could not find module `Text.ParserCombinators.Parsec.Language': Use -v to see a list of the files searched for. But a quick find command shows that ./utils/ext-core/Language/Core/ParsecParser.hs has this very same import, so I figure it must be usable within the compiler. What do I have to do to get it to find this module? -- Colin Adams Preston Lancashire