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

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

[ebuild   R    ] x11-libs/libXdmcp-1.1.5::gentoo  USE="-doc" 291 KiB

Total: 1 package (1 reinstall), Size of downloads: 291 KiB