Fixed: The second-stage compilation in this script should use the compiler
built in the first stage. Also, configure wants to find Happy, so we feed
it fake-happy (presuming that the ghc-less machine also does not have happy).
$MAKE -C ghc all
echo "*** Building libraries..."
-./configure
+GHC="$PWD/ghc/compiler/ghc-inplace" HappyCmd="$PWD/distrib/fake-happy" ./configure
# make ghc/utils while we still have libraries in ghc/lib
$MAKE -C ghc/utils clean boot