NixOS/nixpkgs — pull request #1850 by lethalman (2014-02-27 20:33:04+00:00)
Title: gnome3: Setup hook for gdk-pixbuf and gnome-icon-theme

Add necessary paths to the environment so that
applications can find icons.

Showcase with yelp and baobab. Other applications have to be updated as well if this change is ok.