patch applied (packages/Cabal): Separate out and export installDirsOptions

[Ian Lynagh]

Mon Aug 25 17:32:40 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Separate out and export installDirsOptions
  The InstallDirs is a separate type so it's handy to have the
  command line and config file options for it available
  separately. It'd be useful in cabal-install for one thing.

    M ./Distribution/Simple/Setup.hs -59 +66

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080826003240-adfee-279adc5ed95397999d2413061adc7aa63f32d19a.gz