patch applied (ghc-6.10/ghc): Use -f when making the runhaskell symlink

[Ian Lynagh]

Wed Sep 24 05:42:55 PDT 2008  Ian Lynagh <igloo at earth.li>
  * Use -f when making the runhaskell symlink
  Otherwise installation fails if runhaskell already exists.

    M ./driver/runhaskell/Makefile -1 +1

View patch online:
http://darcs.haskell.org/ghc-6.10/ghc/_darcs/patches/20080924124255-3fd76-20f8fec6761ae74f6b443bcb34812f4f9a5dbe67.gz