libva-dev.tcz
   libva.tcz
      libdrm.tcz
         libpciaccess.tcz
         libudev.tcz
   libdrm-dev.tcz
      libdrm.tcz
         libpciaccess.tcz
         libudev.tcz
      xorg-proto.tcz
         util-macros.tcz
      libpciaccess-dev.tcz
         libpciaccess.tcz
      libudev-dev.tcz