ebuild should be changed like so: PDEPEND=" gtk? ( || ( >=gnome-extra/polkit-gnome-0.105 >=lxde-base/lxsession-0.5.2 ) ) kde? ( || ( kde-plasma/polkit-kde-agent sys-auth/polkit-kde-agent ) ) !systemd? ( !elogind? ( sys-auth/consolekit[policykit] ) ) "
Thanks, fixed in git. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b21eb22cf5074544306f3719244c80d664d4d395