Please, remove razor USE flag from x11-misc/lightdm as razorqt-base is deprecated and will be removed from the tree.
+ 08 Nov 2014; Markos Chandras <hwoarang@gentoo.org> lightdm-1.10.3.ebuild, + lightdm-1.11.9.ebuild, lightdm-1.12.1.ebuild: + Drop razor useflag since it's going to be removed from the tree in favor of + lxqt. Bug #528660 +