Please add kde-base/umbrello to prefix. All ecopy'd packages merged cleanly.
I don't have much more time to look at this, but qt-3 seems to have linking issues. (found by kdelibs failing) configure:35928: rm -rf SunWS_cache; x86_64-pc-linux-gnu-g++ -o conftest -Wno-long-long -Wundef -ansi -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -DNDEBUG -DNO_DEBUG -O2 -Wformat-security -Wmissing-format-attribute -Wno-non-virtual-dtor -fno-exceptions -fno-check-new -fno-common -I/home/jolexa/portage/linux-64/usr/qt/3/include -I/home/jolexa/portage/linux-64/usr/include -DQT_THREAD_SUPPORT -D_REENTRANT -L/home/jolexa/portage/linux-64/usr/qt/3/lib -L/usr/lib64 conftest.cpp -lqt-mt -lpng -lz -lm -ljpeg -ldl -lXext -lX11 -lSM -lICE -lpthread 1>&5 /home/jolexa/portage/linux-64/usr/qt/3/lib/libqt-mt.so: undefined reference to `png_read_info@PNG12_0' /home/jolexa/portage/linux-64/usr/qt/3/lib/libqt-mt.so: undefined reference to `png_set_gAMA@PNG12_0' /home/jolexa/portage/linux-64/usr/qt/3/lib/libqt-mt.so: undefined reference to `png_set_PLTE@PNG12_0' /home/jolexa/portage/linux-64/usr/qt/3/lib/libqt-mt.so: undefined reference to `png_get_x_offset_pixels@PNG12_0' <snip>
qt-3 is old too