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-libs/libtommath-1.2.1::gentoo  USE="-doc -examples -static-libs" 621 KiB

Total: 1 package (1 new), Size of downloads: 621 KiB