patch applied (cabal): Add a sanity check that the ghc and ghc-pkg versions should be equal

Thu Aug 16 20:45:19 PDT 2007 Duncan Coutts * Add a sanity check that the ghc and ghc-pkg versions should be equal This was easy to do now that Programs know how to find their version numbers. M ./Distribution/Simple/GHC.hs -4 +10