Hi Scorp1us
Are you running  Xvesa? For some reason,  qt-5.x-dev.tcz  is pulling in what appears to be almost all of the  Xorg  extensions.
I think it's because  Xorg dev  extensions are being pulled in by  qt-5.x-dev  which in turn are pulling in the  Xorg  extensions.
You may have to wait for Juanito to weigh in on this.