Building the GHC library without building GHC

[C Rodrigues]

Hi,

I was going to do some hacking on Haddock.  Haddock depends on the GHC API from the development version of GHC, however, stage2 crashes on my system when I try to build the newest GHC from the repository.  Since I don't actually need to compile with the new GHC, I'm hoping there's a workaround.  Is there a way to build only the GHC library so that I can get back to Haddock?