patch applied (packages/Cabal): Add parseCompilerFlavorCompat and use it instead of parseReadS

[Ian Lynagh]

Mon Mar 24 16:21:12 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Add parseCompilerFlavorCompat and use it instead of parseReadS
  So it accepts the same valid values as parseReadS did, but doesn't
  fall over on unknown values, returning (OtherCompiler "the_name").

    M ./Distribution/Compiler.hs +26
    M ./Distribution/ParseUtils.hs -2 +2

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080324232112-adfee-78a42e538cc102b745ed11a5ae8c7c428ce15587.gz