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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] gnome-base/libgtop-2.40.0-r2:2/11::gentoo  USE="-introspection" 737 KiB

Total: 1 package (1 new), Size of downloads: 737 KiB