[Haskell-cafe] How to decrease ghc link time

Hi, well, I work with a Haskell project which I regulary compile with ghc. I am a bit unhappy with the link time of the project (i.e. the time ghc needs to link everyting). The project consinst of ~60 Haskell and ~25 foreign files. Some parts of the project are organized like a 'cluster', i.e. the foreign part has only one function, which is used from Haskell-Code. What could I do to improve the link time? Does some concept of 'Packages' exists in Haskell, which helps with the link time? If someone does it before, does it help to link against shared foreign libraries instead of static ones (if this is possible)? Best regards Georg