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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] sys-auth/seatd-0.9.3-r1:0/1::gentoo  USE="-builtin -elogind (-selinux) -server (-systemd)" 42 KiB

Total: 1 package (1 new), Size of downloads: 42 KiB