Hi, This can be safely dropped as libgksu isn't used by mate-system-monitor since 1.14.0. It runs gksu binary instead [1]. Also since 1.18.0 it tries pkexec first before trying gksu [2].
(Support for both is optional, so no hard dependency is required.) [1] https://github.com/mate-desktop/mate-system-monitor/commit/6e0ddb9837551bd33b2f0b75a8f83cb3d2d36927 [2] https://github.com/mate-desktop/mate-system-monitor/commit/ed81e790565663f1ddbdf0777efbd01b8b0e00ad
