patch applied (cabal): The -stubdir flag is supported in ghc-6.6 not just 6.6.1

Wed Sep 26 04:42:23 PDT 2007 Duncan Coutts <duncan@haskell.org> * The -stubdir flag is supported in ghc-6.6 not just 6.6.1 M ./Distribution/Simple/GHC.hs -1 +1