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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] sys-apps/tcp-wrappers-7.6.31-r2::gentoo  USE="-netgroups (-selinux)" 141 KiB
[ebuild  N     ] dev-perl/Authen-Libwrap-0.230.0-r4::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 20 KiB

Total: 2 packages (2 new), Size of downloads: 160 KiB