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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/yajl-2.1.0-r6:0/2::gentoo  83 KiB
[ebuild  N     ] www-servers/kore-4.3.0_rc4::gentoo  USE="acme curl http json openssl threads -debug -postgres" 1065 KiB

Total: 2 packages (2 new), Size of downloads: 1147 KiB