[cabal-install/f15] (4 commits) ...Merge remote-tracking branch 'refs/remotes/origin/f16' into f15

[Jens Petersen]

Summary of changes:

  10e7a7b... rebuild with new gmp (*)
  e77ca8a... rebuild with new gmp without compat lib (*)
  dda4336... bring back requires for ghc-compiler (*)
  c923ac0... Merge remote-tracking branch 'refs/remotes/origin/f16' into

(*) This commit already existed in another branch; no separate mail sent