patch applied (packages/Cabal): Make getting ghc supported language extensions its own function

[Ian Lynagh]

Mon Dec  8 09:58:15 PST 2008  Duncan Coutts <duncan at haskell.org>
  * Make getting ghc supported language extensions its own function

    M ./Distribution/Simple/GHC.hs -14 +22

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20081208175815-adfee-d461633bc21d0133b4a7ce604c7c3c21ee97198a.gz