# File addon/buildr/protobuf.rb, line 68
    def protoc(*args)
      if Hash === args.last
        options = args.pop
      else
        options = {}
      end

      options[:output] ||= path_to(:target, :generated, :protoc)
      options[:lang] ||= compile.language if compile.language

      file(options[:output]=>Protobuf.files_from_sources(*args)) do |task|
        Protobuf.protoc task.prerequisites, options
      end
    end