goocanvas-dev.tcz
   goocanvas.tcz
      cairo.tcz
         pixman.tcz
         fontconfig.tcz
            expat2.tcz
      Xorg-7.6-lib.tcz
   cairo-dev.tcz
      cairo.tcz
         pixman.tcz
         fontconfig.tcz
            expat2.tcz
      pixman-dev.tcz
         pixman.tcz
      fontconfig-dev.tcz
         fontconfig.tcz
            expat2.tcz
         expat2-dev.tcz
      graphics-libs-1-dev.tcz
         graphics-libs-1.tcz