patch applied (cabal): Use setFileExecutable instead of copyPermissions

[Duncan Coutts]

Thu Jan 29 10:01:30 PST 2009  Duncan Coutts <duncan at haskell.org>
  * Use setFileExecutable instead of copyPermissions
  This lets us get rid of the Compat.Permissions module

    M ./Cabal.cabal -1
    R ./Distribution/Compat/Permissions.hs
    M ./Distribution/Simple/GHC.hs -4 +3

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20090129180130-adfee-829cfcc048d10abb6d5de86061d08e1e92046e7c.gz