paraemters to ghc-pkg. Remove the (now obsolete) patch for Register.hs.
Ports that build ghc libraries should now use the following
@exec/@unexec magic (('ve already diffs for all the hs-* ports in
my tree):
lib/${DISTNAME}/register.sh
@exec /usr/bin/env HOME=/nonexistent %D/lib/${DISTNAME}/register.sh -v0
@unexec /usr/bin/env HOME=/nonexistent %D/lib/${DISTNAME}/unregister.sh -v0 --force
lib/${DISTNAME}/unregister.sh