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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild   R    ] dev-perl/Digest-HMAC-1.50.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 15 KiB

Total: 1 package (1 reinstall), Size of downloads: 15 KiB