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

Calculating dependencies ... done!
Dependency resolution took 1.04 s (backtrack: 0/20).

[ebuild  N     ] x11-apps/xauth-1.1.5::gentoo  162 KiB
[ebuild  N     ] x11-apps/xrdb-1.2.3-r2::gentoo  141 KiB
[ebuild  N     ] x11-libs/libXcomposite-0.4.7::gentoo  USE="-doc" 267 KiB
[ebuild  N     ] x11-libs/libXpresent-1.0.2::gentoo  USE="-doc" 260 KiB
[ebuild  N     ] x11-libs/libXtst-1.2.5::gentoo  USE="-doc" 285 KiB
[ebuild  N     ] x11-apps/xdpyinfo-1.4.0::gentoo  USE="-dga -xinerama" 141 KiB
[ebuild  N     ] x11-apps/xinit-1.4.4::gentoo  USE="-twm" 159 KiB
[ebuild  N     ] x11-misc/cdm-0.7::gentoo  USE="pam" 16 KiB

Total: 8 packages (8 new), Size of downloads: 1428 KiB