Dynamic linking of Haskell modules?

I'd like to be able to dynamically load Haskell code from a "plugin" binary file into a Haskell application, just as I can dynamically load .so files into a C application. Since ghci does this, I thought I could copy its implementation but after looking into it, it's very complicated. I notice that OCaml can do this (http://algol.prosalg.no/~malc/scaml/) The only simple solution I can think of is to use FFI to export the objects in the .so file as following the C interface, and then importing them into the main Haskell application as "C functions", but the extra marshalling is ugly. Has anyone solved this problem? Are there any plans to support this in the future in ghc or a third party library? Sengan