ruby-dev.tcz
   ruby.tcz
      openssl.tcz
         gcc_libs.tcz
      readline.tcz
         ncursesw.tcz
      libffi.tcz
      libyaml.tcz
   openssl-dev.tcz
      openssl.tcz
         gcc_libs.tcz
   readline-dev.tcz
      readline.tcz
         ncursesw.tcz
      ncursesw-dev.tcz
         ncursesw.tcz
   libyaml-dev.tcz
      libyaml.tcz
   libffi-dev.tcz
      libffi.tcz