how to package cabalized binaries with assets for a package manager?

Hey All, the mac homebrew folks are trying to understand how they can distro haskell tools like Pandoc, and I"m out of my league in terms of the cabal / cabal-install sandbox fu needed for them to do it correctly, esp since Pandoc is one of those tools that needed a bunch of asset files installed, could someone who's more comfortable / familiar with how to do it right step in to help em out? http://librelist.com/browser//homebrew/2013/10/25/building-ghc-takes-30-minu... thanks -Carter