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

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

[ebuild  N     ] dev-libs/oniguruma-6.9.10:0/5::gentoo  USE="-crnl-as-line-terminator -static-libs" 957 KiB
[ebuild  N     ] sys-apps/bfs-4.0.8::gentoo  USE="acl unicode -caps -debug -io-uring (-selinux)" 290 KiB

Total: 2 packages (2 new), Size of downloads: 1246 KiB