Ci3m330NeHalem spakkabyte # emerge -cp

 * Always study the list of packages to be cleaned for any obvious
 * mistakes. Packages that are part of the world set will always
 * be kept.  They can be manually added to this set with
 * `emerge --noreplace <atom>`.  Packages that are listed in
 * package.provided (see portage(5)) will be removed by
 * depclean, even if they are part of the world set.
 *
 * As a safety measure, depclean will not remove any packages
 * unless *all* required dependencies have been resolved.  As a
 * consequence of this, it often becomes necessary to run
 * `emerge --update --newuse --deep @world` prior to depclean.

Calculating dependencies... done!
>>> Calculating removal order...

>>> These are the packages that would be unmerged:

 media-fonts/liberation-fonts
    selected: 2.00.1-r1
   protected: none
     omitted: none

 x11-apps/xclock
    selected: 1.0.7
   protected: none
     omitted: none

 dev-lang/nasm
    selected: 2.12.01
   protected: none
     omitted: none

 x11-wm/twm
    selected: 1.0.9
   protected: none
     omitted: none

 x11-terms/xterm
    selected: 325
   protected: none
     omitted: none

 sys-libs/libutempter
    selected: 1.1.6-r1
   protected: none
     omitted: none

 x11-apps/xmessage
    selected: 1.0.4
   protected: none
     omitted: none

All selected packages: =x11-wm/twm-1.0.9 =x11-apps/xmessage-1.0.4 =media-fonts/liberation-fonts-2.00.1-r1 =x11-apps/xclock-1.0.7 =x11-terms/xterm-325 =dev-lang/nasm-2.12.01 =sys-libs/libutempter-1.1.6-r1

>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed.

Packages installed:   644
Packages in world:    18
Packages in system:   78
Required packages:    637
Number to remove:     7