Dependency wayland-protocols found: NO found '1.16' but need: '>= 1.18'
Found CMake: /usr/bin/cmake (3.14.5)
Dependency wayland-protocols found: NO (tried cmake)
meson.build:165:2: ERROR: Invalid version of dependency, need 'wayland-protocols' ['>= 1.18'] found '1.16'.
A full log can be found at /var/tmp/portage/x11-wm/mutter-3.34.1-r1/work/mutter-3.34.1-build/meson-logs/meson-log.txt
 * ERROR: x11-wm/mutter-3.34.1-r1::gnome-kit failed (configure phase):
 * (no error message)
 *
 * Call stack:
 * ebuild.sh, line 93: Called src_configure
 * environment, line 3880: Called meson_src_configure
 * environment, line 2753: Called die
 * The specific snippet of code:
 * tc-env_build "$@" || die
 *
 * If you need support, post the output of `emerge --info '=x11-wm/mutter-3.34.1-r1::gnome-kit'`,
 * the complete build log and the output of `emerge -pqv '=x11-wm/mutter-3.34.1-r1::gnome-kit'`.
 * The complete build log is located at '/var/tmp/portage/x11-wm/mutter-3.34.1-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/x11-wm/mutter-3.34.1-r1/temp/environment'.
 * Working directory: '/var/tmp/portage/x11-wm/mutter-3.34.1-r1/work/mutter-3.34.1'
 * S: '/var/tmp/portage/x11-wm/mutter-3.34.1-r1/work/mutter-3.34.1'