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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] dev-build/automake-vanilla-1.16.5-r1:1.16::gentoo  USE="-test" 1572 KiB

Total: 1 package (1 new), Size of downloads: 1572 KiB