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

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

[ebuild  N     ] dev-libs/uthash-2.4.0::gentoo  USE="-test" 192 KiB
[ebuild  N     ] kde-frameworks/extra-cmake-modules-6.31.0::gentoo  USE="-doc -test" 339 KiB
[ebuild  N     ] x11-libs/xcb-util-0.4.1::gentoo  262 KiB
[ebuild  N     ] x11-libs/xcb-imdkit-1.0.9:5::gentoo  568 KiB

Total: 4 packages (4 new), Size of downloads: 1359 KiB