media-tv/kodi-18.0_beta5-r1 required an >=dev-libs/libinput-1.10.5 ebuild 

    [ebuild     U  ] media-tv/kodi-18.0_beta5::media-kit [17.6-r4::media-kit] USE="X%* alsa bluray css dbus dvd opengl pulseaudio (system-ffmpeg%*) udev udisks upnp vaapi vdp
au webserver xslt -airplay -bluetooth -caps -cec -debug -gbm% -gles -lcms -libressl -libusb -lirc -mariadb% -mysql -nfs -samba -systemd -test -upower -wayland% -zeroconf
(-java%) (-nonfree%) (-sftp%)" PYTHON_TARGETS="python2_7" 0 KiB

    Total: 1 package (1 upgrade), Size of downloads: 0 KiB

    !!! The following update has been skipped due to unsatisfied dependencies:

    media-tv/kodi:0

     selected: (media-tv/kodi-18.0_beta5:0/0::media-kit, ebuild scheduled for merge)
     skipped: (media-tv/kodi-18.0_beta5-r1:0/0::media-kit, ebuild scheduled for merge) (see unsatisfied dependency below)

    emerge: there are no ebuilds to satisfy ">=dev-libs/libinput-1.10.5".
(dependency required by "media-tv/kodi-18.0_beta5-r1::media-kit" [ebuild])