try to fix webkit-gtk3
Success: devel/libgtop v2.30.0_2
Success: audio/pulseaudio v5.0_1
Success: sysutils/libgksu v2.0.12_2
Success: x11-wm/metacity v3.14.1
Success: deskutils/baobab v3.14.0
Failure: sysutils/gnome-system-monitor v3.14.1
Success: lang/squeak v4.10.2_2
Success: sysutils/cinnamon-settings-daemon v2.2.4