Cabal and older versions of GHC

Is it possible to use Cabal with older versions (e. g. 6.0 to 6.2.2) of GHC? Some time later, I am going to release HSFFIG as a package. To be usable with GHC 6.2.2, can it be packaged with Cabal, or do I have to use ghc-pkg? If I use ghc-pkg, is there a way to convert such a package into Cabal? I am not going to upgrade to GHC 6.4.x any time soon, so what are my options in using Cabal with 6.2.2? -- Dimitry Golubovsky Anywhere on the Web