sys-apps/portage ~x86 ~amd64
dev-lang/python:3.3 ~x86 ~amd64

# GNOME 3.12 mask
>=sys-power/upower-0.99.0 ~x86 ~amd64
# Allow systemd and upower 0.99 friendly version
=xfce-extra/xfce4-power-manager-1.2.0_p20140527 ~amd64 ~x86 amd64 x86