terminus aidan # emerge -av kdebase

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

Calculating dependencies... done!
[ebuild  N    ] kde-base/kdebase-3.5.6-r1  USE="hal java opengl pam ssl -arts -cups -debug -ieee1394 -kdeenablefinal -kdehiddenvisibility -ldap -lm_sensors -logitech-mouse -openexr -samba -xcomposite -xinerama -xscreensaver -zeroconf" 0 kB 
[blocks B     ] =kde-base/kicker-3.5* (is blocking kde-base/kdebase-3.5.6-r1)
[blocks B     ] =kde-base/kdebase-data-3.5* (is blocking kde-base/kdebase-3.5.6-r1)
[blocks B     ] =kde-base/libkonq-3.5* (is blocking kde-base/kdebase-3.5.6-r1)
[blocks B     ] =kde-base/kdebase-3.5* (is blocking kde-base/libkonq-3.5.6, kde-base/kdebase-data-3.5.6, kde-base/kicker-3.5.6)

Total: 1 package (1 new, 4 blocks), Size of downloads: 0 kB

!!! Error: The above package list contains packages which cannot be installed
!!!        at the same time on the same system.