patch applied (ghc): Fix the build when the bootstrapping compiler has a newer Cabal than us

[Ian Lynagh]

Wed Oct 15 07:40:23 PDT 2008  Ian Lynagh <igloo at earth.li>
  * Fix the build when the bootstrapping compiler has a newer Cabal than us
  We need to forcibly use the in-tree Cabal, or we get version mismatch errors

    M ./libraries/Makefile -3
    M ./mk/cabal-flags.mk +6
    M ./utils/installPackage/Makefile -3 +7

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20081015144023-3fd76-aea240f9901aeada3c253716855bc240a6e2bbdf.gz