avogadro-dev.tcz
   avogadro.tcz
      openbabel.tcz
         libxml2.tcz
            liblzma.tcz
         eigen.tcz
      pyqt.tcz
         sip.tcz
            python.tcz
               sqlite3.tcz
               bzip2-lib.tcz
         qt-4.x-xml.tcz
            qt-4.x-base.tcz
               Xorg-7.6-lib.tcz
               fontconfig.tcz
                  expat2.tcz
               glib2.tcz
                  libffi.tcz
               openssl-1.0.0.tcz
         fontconfig.tcz
            expat2.tcz
      boost.tcz
         icu44.tcz
      eigen.tcz
      glew.tcz