tqt FTBFS: something about TQAssistantClient

tqt FTBFS with next message: x86_64-pc-linux-gnu-g++ -luuid -fno-exceptions -Wl,-O1 -Wl,--as-needed -o ../../../bin/tqdesigner .obj/release-shared-mt/main.o -L/usr/lib64 -L/var/tmp/portage/dev-qt/tqt-3.9999/work/tqt-3.9999/lib -L/usr/X11R6/lib64 -L/var/tmp/portage/dev-qt/tqt-3.9999/work/tqt-3.9999/lib -L/usr/lib64 -ltqtdesignercore -ltqui -ltqassistantclient -luuid -ltqt-mt -lmng -ljpeg -lpng -lz -lXi -lXrender -lXrandr -lXcursor -lXinerama -lXft -lfreetype -lfontconfig -lXext -lX11 -lm -lSM -lICE -ldl -lpthread /var/tmp/portage/dev-qt/tqt-3.9999/work/tqt-3.9999/lib/libtqtdesignercore.a(mainwindow.o): In function `MainWindow::MainWindow(bool, bool, TQString const&)': mainwindow.cpp:(.text+0x15bd5): undefined reference to `TQAssistantClient::TQAssistantClient(TQString const&, TQObject*, char const*)' Full Build log is in the attach.