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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/serd-0.32.4::gentoo  USE="tools -doc -test" 171 KiB

Total: 1 package (1 new), Size of downloads: 171 KiB