libmng-dev.tcz
   libmng.tcz
      lcms2.tcz
         libtiff.tcz
            liblzma.tcz
            libjpeg-turbo.tcz
   lcms2-dev.tcz
      lcms2.tcz
         libtiff.tcz
            liblzma.tcz
            libjpeg-turbo.tcz
      libtiff-dev.tcz
         libtiff.tcz
            liblzma.tcz
            libjpeg-turbo.tcz
         liblzma-dev.tcz
            liblzma.tcz
         libjpeg-turbo-dev.tcz
            libjpeg-turbo.tcz