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

Calculating dependencies  ..... ... done!
[ebuild   R   ] x11-base/xorg-x11-7.1  0 kB 

Total: 1 package (1 reinstall), Size of downloads: 0 kB


>>> Emerging (1 of 1) x11-base/xorg-x11-7.1 to /
 * checking ebuild checksums ;-) ...                                                                                      [ ok ]
 * checking auxfile checksums ;-) ...                                                                                     [ ok ]
 * checking miscfile checksums ;-) ...                                                                                    [ ok ]
>>> Unpacking source...
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/x11-base/xorg-x11-7.1 ...
>>> Source compiled.
>>> Test phase [not enabled]: x11-base/xorg-x11-7.1

>>> Install xorg-x11-7.1 into /var/tmp/portage/x11-base/xorg-x11-7.1/image/ category x11-base
>>> Completed installing xorg-x11-7.1 into /var/tmp/portage/x11-base/xorg-x11-7.1/image/

>>> Merging x11-base/xorg-x11-7.1 to /
--- /etc/
--- /etc/X11/
>>> /etc/X11/xorg.conf
--- /usr/
>>> /usr/X11R6 -> ../usr
>>> Safely unmerging already-installed instance...
--- !mtime sym /usr/X11R6
--- !mtime obj /etc/X11/xorg.conf
--- !empty dir /usr
--- !empty dir /etc/X11
--- !empty dir /etc
>>> Original instance of package unmerged safely.

 * Please note that the xcursors are in /usr/share/cursors/xorg-x11.
 * Any custom cursor sets should be placed in that directory.

 * If you wish to set system-wide default cursors, please create
 * /usr/local/share/cursors/xorg-x11/default/index.theme
 * with content: "Inherits=theme_name" so that future
 * emerges will not overwrite those settings.

 * Listening on TCP is disabled by default with startx.
 * To enable it, edit /usr/bin/startx.

 * Please read the modular X migration guide at
 * http://www.gentoo.org/proj/en/desktop/x/x11/modular-x-howto.xml

 * If you encounter any non-configuration issues, please file a bug at
 * http://bugs.gentoo.org/enter_bug.cgi?product=Gentoo%20Linux
 * and attach /etc/X11/xorg.conf, /var/log/Xorg.0.log and emerge info

 * You can now choose which drivers are installed with the VIDEO_CARDS
 * and INPUT_DEVICES settings. Set these like any other Portage
 * variable in /etc/make.conf or on the command line.

 * Visit http://www.gentoo.org/doc/en/index.xml?catid=desktop
 * for more information on configuring X.

>>> x11-base/xorg-x11-7.1 merged.

>>> No packages selected for removal by clean
>>> Auto-cleaning packages...

>>> No outdated packages were found on your system.
 * GNU info directory index is up-to-date.
 * IMPORTANT: 2 config files in '/etc' need updating.
 * Type emerge --help config to learn how to update config files.