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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/gf-complete-2.0.0_p20170410::gentoo  335 KiB
[ebuild  N     ] dev-libs/jerasure-2.0.0_p20170410::gentoo  USE="-test" 495 KiB

Total: 2 packages (2 new), Size of downloads: 830 KiB