how is Linux GHC formed?

How was the Linux binary for GHC created? I am looking at ways to compile Haskell binaries for Linux that work across distros. So far, I have been using `-static -optl-static` but today there was a weird hiccup with IO -- the Gentoo built binary worked fine on Gentoo but caught SIGPIPE intermittently on Ubuntu -- and so it's back to the drawing board. The GHC linux binary seems to work on all the Linii without discrimination, so I'd like to know what the procedure is for producing it, and what I can take away from that to put in my Cabal file. -- _jsn