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

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

[ebuild   R    ] net-dns/libidn-1.43:0/12::gentoo  USE="nls -emacs -verify-sig" 2476 KiB

Total: 1 package (1 reinstall), Size of downloads: 2476 KiB