[Haskell] Cabal and dynamically generated files

Hi all. In order to compile the Main.hs for my program, you first need to compile the BuildMain.hs, then run it (it will create a Main.hs). This is easy with Makefiles, however, I'd quite like to use Cabal for its Windows support and dependency handling. This might not be easy, but could it be done? How would I go about it? -- -David House, dmhouse@gmail.com