patch applied (cabal): Switch a few distribution checks to build warnings

[Duncan Coutts]

Wed Dec  2 06:35:49 PST 2009  Duncan Coutts <duncan at haskell.org>
  * Switch a few distribution checks to build warnings
  Ignore-this: bbadf449113d009b51837bc1dd3488af
  In particular the one about -prof since this leads to borked packages.

    M ./Distribution/PackageDescription/Check.hs -7 +9

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20091202143549-adfee-21dd681f0da08693a5392d8bcc5ad9f593549a49.gz