Cabal should support distcc

There should be a configuration option to allow cabal to automatically use distcc to distribute its compilation to multiple computers!

For those who don't know, distcc is a tool which distributes source code over multiple computers in order to compile in parallel. It's amazing when it works properly! http://en.wikipedia.org/wiki/distcc

See here for an example: https://stackoverflow.com/questions/10323419/is-there-a-distcc-like-tool-for-ghc