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

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] dev-util/wayland-scanner-1.26.0::gentoo  599 KiB
[ebuild  N     ] media-libs/waffle-1.8.3::gentoo  USE="X -doc -test -wayland" 303 KiB

Total: 2 packages (2 new), Size of downloads: 901 KiB