These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.08 s (backtrack: 0/20).

[ebuild  N     ] app-text/iso-codes-4.20.1::gentoo  16024 KiB
[ebuild  N     ] x11-misc/xkeyboard-config-2.48::gentoo  USE="-test" 931 KiB
[ebuild  N     ] x11-libs/libxkbfile-1.2.0::gentoo  57 KiB
[ebuild  N     ] x11-apps/xkbcomp-1.5.0-r2::gentoo  243 KiB
[ebuild  N     ] x11-libs/libxklavier-5.4-r1:0/16::gentoo  USE="-introspection -vala" 382 KiB

Total: 5 packages (5 new), Size of downloads: 17635 KiB