[Haskell-cafe] [cabal] How to deal with build-depency that not under cabal's control?

Hi, I use gtk2hs in linux. Well, I have no idea how to install gtk2hs by cabal, but my program needs it, and I want my program cabalized. So how to do this? Thanks. -- 竹密岂妨流水过 山高哪阻野云飞