[Haskell-cafe] GHC and libc

When I compile my haskell program (on a linux machine) with GHC and send it to a colleague he can't run it because he has a somewhat older version of libc. Is there a GHC switch that I have missed that enables you to statically link the parts of libc that is used by the haskell program? Alternatively have someone other tips for solving this problem? (I'm reluctant to force all my colleagues to install GHC, because of the size and long installation time, and I can't let them use Hugs because I've used some GHC-only features in my program.) Per Larsson