This is the cabal driver used during the GHC build.  This change makes it use
the stock ghc ('ghc' from the PATH) instead of the default (cross-compiler) for
compiling Setup.hs.  This is needed obviously because Setup.hs must run on the
local machine.

--- ghc-6.10.2.orig/libraries/cabal-bin.hs	2009-03-31 06:13:15.000000000 +1300
+++ ghc-6.10.2/libraries/cabal-bin.hs	2009-06-18 15:54:37.000000000 +1200
@@ -51,7 +51,7 @@
     -- build Setup in order to build, and Setup isn't built already,
     -- then there shouldn't be anything to clean anyway.
     unless cleaning $
-        rawSystemExit verbosity ghc ["-package-conf", packageConf,
+        rawSystemExit verbosity "ghc" ["-package-conf", packageConf,
                                      "--make", "Setup",
                                      "-package", "Cabal-" ++ useCabalVersion,
                                      "-o", "Setup"]