patch applied (cabal): -Wall fixes

[Ian Lynagh]

Tue Apr 10 17:35:09 PDT 2007  Ian Lynagh <igloo at earth.li>
  * -Wall fixes

    M ./Distribution/Setup.hs +2
    M ./Distribution/Simple.hs -1 +1
    M ./Distribution/Simple/Build.hs +5
    M ./Distribution/Simple/Configure.hs -1 +1
    M ./Distribution/Simple/GHC.hs +2