extension postHook) does nothing else than set up the environment. It shouldn't touch $out because there may not be a $out. So move the "imperative" bits of postHook into a separate phase. svn path=/nixpkgs/trunk/; revision=33249
extension postHook) does nothing else than set up the environment. It shouldn't touch $out because there may not be a $out. So move the "imperative" bits of postHook into a separate phase. svn path=/nixpkgs/trunk/; revision=33249