kainos ~ # emerge --depclean -p

*** WARNING ***  Depclean may break link level dependencies.  Thus, it is
*** WARNING ***  recommended to use a tool such as `revdep-rebuild` (from
*** WARNING ***  app-portage/gentoolkit) in order to detect such breakage.
*** WARNING ***  
*** WARNING ***  Also study the list of packages to be cleaned for any obvious
*** WARNING ***  mistakes. Packages that are part of the world set will always
*** WARNING ***  be kept.  They can be manually added to this set with
*** WARNING ***  `emerge --noreplace <atom>`.  Packages that are listed in
*** WARNING ***  package.provided (see portage(5)) will be removed by
*** WARNING ***  depclean, even if they are part of the world set.
*** WARNING ***  
*** WARNING ***  As a safety measure, depclean will not remove any packages
*** WARNING ***  unless *all* required dependencies have been resolved.  As a
*** WARNING ***  consequence, it is often necessary to run 
*** WARNING ***  `emerge --update --newuse --deep world` prior to depclean.

Calculating dependencies... done!


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

 media-sound/sox
    selected: 12.18.2 
   protected: none
     omitted: none

 media-plugins/gst-plugins-xvideo
    selected: 0.8.12 
   protected: none
     omitted: 0.10.11 

 media-libs/edje
    selected: 0.5.0.037 
   protected: none
     omitted: none

 x11-libs/goffice
    selected: 0.2.1 
   protected: none
     omitted: none

 media-libs/akode
    selected: 2.0.1 
   protected: none
     omitted: none

 dev-libs/libsigc++
    selected: 1.2.5 
   protected: none
     omitted: 2.0.17 

 x11-libs/ewl
    selected: 0.0.4.007 
   protected: none
     omitted: none

 dev-libs/dbus-qt3-old
    selected: 0.70 
   protected: none
     omitted: none

 x11-apps/xsetroot
    selected: 1.0.1 
   protected: none
     omitted: none

 media-libs/epsilon
    selected: 0.3.0.007 
   protected: none
     omitted: none

 sys-libs/libcap
    selected: 1.10-r9 
   protected: none
     omitted: none

 x11-misc/beryl-settings-bindings
    selected: 0.1.9999.2 
   protected: none
     omitted: none

 media-libs/libsamplerate
    selected: 0.1.2-r1 
   protected: none
     omitted: none

 x11-libs/libcm
    selected: 0.1.1 
   protected: none
     omitted: none

 media-libs/epeg
    selected: 0.9.0.007 
   protected: none
     omitted: none

 x11-apps/xset
    selected: 1.0.2 
   protected: none
     omitted: none

 app-text/psutils
    selected: 1.17 
   protected: none
     omitted: none

 app-crypt/gpgme
    selected: 1.1.3 
   protected: none
     omitted: none

 dev-libs/cyrus-sasl
    selected: 2.1.22-r2 
   protected: none
     omitted: none

 dev-libs/embryo
    selected: 0.9.1.037 
   protected: none
     omitted: none

 app-crypt/qca-tls
    selected: 1.0-r3 
   protected: none
     omitted: none

 sys-apps/hotplug-base
    selected: 20040401 
   protected: none
     omitted: none

 dev-libs/libical
    selected: 0.26.6 
   protected: none
     omitted: none

 app-crypt/qca
    selected: 1.0-r2 
   protected: none
     omitted: none

 dev-libs/g-wrap
    selected: 1.9.6-r1 
   protected: none
     omitted: none

 sys-apps/usbutils
    selected: 0.72-r1 
   protected: none
     omitted: none

 dev-scheme/slib
    selected: 3.1.1-r1 
   protected: none
     omitted: none

 media-sound/normalize
    selected: 0.7.7 
   protected: none
     omitted: none

 media-libs/t1lib
    selected: 5.0.2 
   protected: none
     omitted: none

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

Packages installed:   979
Packages in world:    170
Packages in system:   57
Unique package names: 979
Required packages:    950
Number to remove:     29