a headache. "polkit" is the new, unstable release series.
"policykit" is the old series. (See
http://lists.freedesktop.org/archives/polkit-devel/2009-February/000106.html
for an "explanation" of the name change.) It seems that for HAL we
need to revert to the old "policykit", since it doesn't compile
against "polkit".
svn path=/nixpkgs/trunk/; revision=17425
