# File lib/nanoc/cli/commands/compile.rb, line 374
    def check_for_deprecated_usage
      # Check presence of --all option
      if options.has_key?(:all) || options.has_key?(:force)
        $stderr.puts "Warning: the --force option (and its deprecated --all alias) are, as of nanoc 3.2, no longer supported and have no effect."
      end

      # Warn if trying to compile a single item
      if arguments.size == 1
        $stderr.puts '-' * 80
        $stderr.puts 'Note: As of nanoc 3.2, it is no longer possible to compile a single item. When invoking the “compile” command, all items in the site will be compiled.'
        $stderr.puts '-' * 80
      end
    end