patch applied (ghc): When removing $(TOP) with sed, do so case insensitively

[Ian Lynagh]

Sat Dec 19 05:53:39 PST 2009  Ian Lynagh <igloo at earth.li>
  * When removing $(TOP) with sed, do so case insensitively
  This avoids problems on Windows, where drive letters may not be the
  case we expect.

    M ./rules/build-dependencies.mk -1 +1

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20091219135339-3fd76-82092ca615f248994caa9b81b6489a8389862606.gz