libinput-dev.tcz
   libinput.tcz
      mtdev.tcz
      libevdev.tcz
      libwacom.tcz
         gudev-lib.tcz
   mtdev-dev.tcz
      mtdev.tcz
   libevdev-dev.tcz
      libevdev.tcz
   libwacom-dev.tcz
      libwacom.tcz
         gudev-lib.tcz
      gudev-lib-dev.tcz
   gtk3-dev.tcz