Something

localhost ~ # emerge --pretend kuroo

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

Calculating dependencies... done!
[blocks B     ] kde-base/kde-env (is blocking kde-base/kdelibs-3.5.5-r8)
[blocks B     ] >=kde-base/kdelibs-3.5.4-r2 (is blocking kde-base/kde-env-3-r4)
[ebuild  N    ] dev-libs/libpcre-6.6  USE="-doc" 
[ebuild  N    ] app-portage/gentoolkit-0.2.2  
[ebuild  N    ] kde-base/kdelibs-3.5.5-r8  USE="fam spell ssl -acl -alsa -arts -avahi -cups -debug -doc -jpeg2k -kdeenablefinal -kdehiddenvisibility -kerberos -legacyssl -lua -openexr -tiff -utempter -xinerama -zeroconf" LINGUAS="-he" 
[ebuild  N    ] kde-misc/kdiff3-0.9.88  USE="-arts -debug -xinerama" 
[ebuild  N    ] kde-base/kdesu-3.5.5  USE="-arts -debug -kdeenablefinal -kdehiddenvisibility -xinerama" 
[ebuild  N    ] app-portage/kuroo-0.80.2-r1  USE="-arts -debug -xinerama" 
localhost ~ #