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

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

[ebuild  N     ] sci-mathematics/clipper2-1.5.3-r1:0/1::gentoo  USE="-test" 610 KiB

Total: 1 package (1 new), Size of downloads: 610 KiB