... done!
[ebuild     U ] net-im/pidgin-2.2.2 [2.2.1] USE="dbus gtk ncurses nls perl -bonjour -debug -doc -eds -gadu -gnutls -groupwise -gstreamer -meanwhile (-networkmanager) -prediction -qq -sasl -silc -spell -tcl -tk -zephyr" 8,694 kB 
[ebuild     U ] dev-libs/boost-1.34.1 [1.33.1-r1] USE="-debug -doc -icu -pyste -tools% (-bcp%) (-bjam%) (-threads%*) (-threadsonly%)" 12,683 kB 
[ebuild  N    ] dev-util/boost-build-1.34.1  0 kB 
[blocks B     ] <dev-libs/boost-1.34.0 (is blocking dev-util/boost-build-1.34.1)