patch applied (cabal): Generalise build --ghc-option flag to --prog-option for any prog

[Duncan Coutts]

Mon Sep  3 04:06:58 PDT 2007  Duncan Coutts <duncan at haskell.org>
  * Generalise build --ghc-option flag to --prog-option for any prog
  and remove makefile --ghc-option flag as it's not used (as far as I can see).
  It works generically by updating the ProgramConfiguration rather than the
  previous ad-hoc implementation. This feature is generally only useful for
  hackers who want to pass extra args to a progam during the build step
  (probably as a one-off) without having to reconfigure.

    M ./Distribution/Simple.hs -4 +8
    M ./Distribution/Simple/Build.hs -7 +3
    M ./Distribution/Simple/Setup.hs -47 +52
    M ./doc/Cabal.xml -18 +15