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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] x11-libs/libXScrnSaver-1.2.5::gentoo  USE="-doc" 266 KiB
[ebuild  N     ] x11-libs/libXinerama-1.1.6::gentoo  USE="-doc" 263 KiB
[ebuild  N     ] x11-libs/libXxf86dga-1.1.7::gentoo  USE="-doc" 270 KiB
[ebuild  N     ] x11-misc/x2vnc-1.7.2-r2::gentoo  USE="-tk" 81 KiB

Total: 4 packages (4 new), Size of downloads: 878 KiB