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

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

[ebuild  N     ] x11-misc/xbitmaps-1.1.4::gentoo  112 KiB
[ebuild  N     ] x11-misc/xmountains-2.9-r1::gentoo  28 KiB

Total: 2 packages (2 new), Size of downloads: 140 KiB