# File lib/nanoc/base/compilation/outdatedness_checker.rb, line 51
    def outdatedness_reason_for(obj)
      reason = basic_outdatedness_reason_for(obj)
      if reason.nil? && outdated_due_to_dependencies?(obj)
        reason = Nanoc::OutdatednessReasons::DependenciesOutdated
      end
      reason
    end