kaethe ~ # emerge --update --deep world
Calculating world dependencies... done!

!!! Error: the =kde-base/khelpcenter-3.5* package conflicts with another package;
!!!        the two packages cannot be installed on the same system together.
!!!        Please use 'emerge --pretend' to determine blockers.

For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):

http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?full=1#blocked

kaethe ~ # 




kaethe ~ # emerge --pretend --update --deep world

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

Calculating world dependencies... done!

[blocks B     ] =kde-base/khelpcenter-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kicker-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kdebase-data-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kcontrol-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/konqueror-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kdebase-kioslaves-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kfind-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/khotkeys-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kcminit-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kdesu-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/kdialog-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[blocks B     ] =kde-base/libkonq-3.5* (is blocking kde-base/kdebase-3.5.5-r4)
[ebuild     U ] sys-devel/gettext-0.16.1 [0.15] 
[ebuild     U ] sys-libs/ncurses-5.6 [5.5-r3] 
[ebuild     U ] sys-devel/m4-1.4.9 [1.4.7] USE="-examples%" 
[ebuild     U ] sys-apps/findutils-4.3.4 [4.3.2]