uses for its core libraries, so that these files integrate seamlessly into one
profile, living right next to each other. This change is eventually going to
simply our with-packages wrapper quite a bit.
The wrapper script for ghc-pkg changes the command's default behavior such that
global packages -- i.e. packages that are part of GHC itself -- are no longer
found:
$ ghc-pkg describe base
ghc-pkg: cannot find package base
This patch remedies the problem.
svn path=/nixpkgs/trunk/; revision=19256
