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

Calculating dependencies ... done!
Dependency resolution took 1.06 s (backtrack: 0/20).

[ebuild  N     ] app-text/rman-3.2-r2::gentoo  78 KiB
[ebuild  N     ] x11-misc/gccmakedep-1.0.5::gentoo  107 KiB
[ebuild  N     ] x11-misc/xorg-cf-files-1.0.9::gentoo  171 KiB
[ebuild  N     ] x11-misc/imake-1.0.10::gentoo  152 KiB
[ebuild  N     ] app-misc/oneko-1.2_p6_p14-r1::gentoo  75 KiB

Total: 5 packages (5 new), Size of downloads: 581 KiB