ruby-dev.tcz
   ruby.tcz
      gmp.tcz
      gdbm.tcz
      openssl.tcz
      readline.tcz
         ncurses.tcz
      tk.tcz
         tcl.tcz
      libffi.tcz
   gmp-dev.tcz
      gmp.tcz
   gdbm-dev.tcz
      gdbm.tcz
   openssl-dev.tcz
      openssl.tcz
   readline-dev.tcz
      readline.tcz
         ncurses.tcz
      ncurses-dev.tcz
         ncurses.tcz
   tk-dev.tcz
      tk.tcz
         tcl.tcz
      tcl-dev.tcz
         tcl.tcz
   libffi-dev.tcz
      libffi.tcz