pangomm.tcz
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            glib2.tcz
               libffi.tcz
            fontconfig.tcz
               expat2.tcz
            pixman.tcz
   cairomm.tcz
      cairo.tcz
         glib2.tcz
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         fontconfig.tcz
            expat2.tcz
         pixman.tcz
      libsigc++.tcz
   glibmm.tcz
      libsigc++.tcz
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         libffi.tcz