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

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

[ebuild  N     ] app-text/pspresent-1.3-r2::gentoo  USE="-xinerama" 15 KiB

Total: 1 package (1 new), Size of downloads: 15 KiB