patch applied (ghc): Don't rebuild things with the stage2 compiler

[Ian Lynagh]

Sun Jun 22 06:46:13 PDT 2008  Ian Lynagh <igloo at earth.li>
  * Don't rebuild things with the stage2 compiler
  It leads to annoying rebuilding when working in a built tree.
  We'll handle this differently for 6.10.

    M ./Makefile -7

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080622134613-3fd76-21e9d0f87335275987b239919e962dc3dc976737.gz