error "unsupported language, no idea how to modify auto-path"
    }
  }

  #
  # NOTE: This procedure downloads a single file from the package file server,
  #       writing its contents to the specified local file name.  It can also
  #       verify the PGP signatures.  When a PGP signature file is
  #       verify the OpenPGP signatures.  When an OpenPGP signature file is
  #       downloaded, this procedure assumes the corresponding data file was
  #       already downloaded (i.e. since OpenPGP needs both to perform the
  #       signature checks).  The language argument must be one of the
  #       literal strings "eagle", "tcl", or "client".  The version argument
  #       must be one of the literal strings "8.4", "8.5", or "8.6" when the
  #       language is "tcl" -OR- the literal string "1.0" when the language
  #       is either "eagle" or "client".  The fileName argument is a file