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

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] media-video/rtmpdump-2.4_p20210219::gentoo  USE="ssl tools -gnutls -static-libs" 140 KiB

Total: 1 package (1 new), Size of downloads: 140 KiB