libarchive-dev.tcz
   libarchive.tcz
      acl.tcz
         libattr.tcz
      bzip2-lib.tcz
      xz.tcz
      expat2.tcz
      openssl-1.0.0.tcz
   acl-dev.tcz
   bzip2-dev.tcz
      bzip2-lib.tcz
      bzip2.tcz
   expat2-dev.tcz
   openssl-1.0.0-dev.tcz
   xz-dev.tcz
      xz.tcz