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[ebuild  NS   ] kde-base/kdelibs-4.2.4 [3.5.9-r4, 4.0.3] USE="3dnow acl alsa bzip2 fam kerberos mmx nls opengl spell sse sse2 ssl (-altivec) -bindist -debug -doc -handbook -jpeg2k -kdeprefix -openexr -semantic-desktop -test -zeroconf" 9,799 kB
[ebuild  N    ] kde-base/kdebase-data-4.2.4  USE="-kdeprefix" 67,703 kB
[ebuild  N    ] kde-base/kde-env-4.2.4  USE="-kdeprefix" 0 kB
[uninstall    ] kde-base/kdelibs-3.5.9-r4  USE="acl alsa branding fam kerberos spell -arts -avahi -bindist -cups -debug -doc -jpeg2k -kdeenablefinal -kdehiddenvisibility -legacyssl -lua -openexr -tiff -utempter -xinerama"
[blocks b     ] <kde-base/kdelibs-3.5.10 ("<kde-base/kdelibs-3.5.10" is blocking kde-base/kdelibs-4.2.4)
[blocks b     ] <kde-base/kdelibs-3.5.10-r3 ("<kde-base/kdelibs-3.5.10-r3" is blocking kde-base/kde-env-4.2.4)
[ebuild  N    ] media-sound/kradio-4.0.0  USE="alsa encode mp3 vorbis -debug -ffmpeg -lirc -v4l2" LINGUAS="ru -cs -de -es -pl -pt -uk" 1,748 kB
[blocks B     ] <=kde-base/kdebase-3.5.9-r4 ("<=kde-base/kdebase-3.5.9-r4" is blocking kde-base/kdelibs-4.2.4)

Total: 23 packages (10 upgrades, 12 new, 1 in new slot, 1 uninstall), Size of downloads: 79,572 kB
Conflict: 18 blocks (1 unsatisfied)

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

  ('ebuild', '/', 'kde-base/kdelibs-4.2.4', 'merge') pulled in by
    >=kde-base/kdelibs-4.2.4[-kdeprefix] required by ('ebuild', '/', 'kde-base/kde-env-4.2.4', 'merge')
    >=kde-base/kdelibs-4.2 required by ('ebuild', '/', 'media-sound/kradio-4.0.0', 'merge')
    >=kde-base/kdelibs-4.2.4[-kdeprefix] required by ('ebuild', '/', 'kde-base/kdebase-data-4.2.4', 'merge')

  ('installed', '/', 'kde-base/kdebase-3.5.9-r4', 'nomerge') pulled in by
    kde-base/kdebase required by world