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/ell-0.83::gentoo  USE="-pie -test" 589 KiB
[ebuild  N     ] net-misc/mptcpd-0.12:0/0.12::gentoo  USE="-debug -doc" 675 KiB

Total: 2 packages (2 new), Size of downloads: 1263 KiB