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

Calculating dependencies ... done!
Dependency resolution took 1.10 s (backtrack: 0/20).

[ebuild  N     ] media-libs/plib-1.8.5-r4::gentoo  761 KiB
[ebuild  N     ] games-action/tuxkart-0.4.0-r2::gentoo  4817 KiB

Total: 2 packages (2 new), Size of downloads: 5578 KiB