How to staticly build ghc?

Hi, I am with ghc 7.4.1. For some reason I need a totally static linked compilation to my code. But it failed when linking some packages came with ghc, like unix-2.5.1.0. Trying to rebuild ghc to make all staticly, but failed to find args like this when configuring ghc. What should I do? -- 竹密岂妨流水过 山高哪阻野云飞 And for G+, please use magiclouds#gmail.com.