# File lib/packaging/config.rb, line 113
      def load_default_configs
        default_project_data = File.join(@project_root, "ext", "project_data.yaml")
        default_build_defaults = File.join(@project_root, "ext", "build_defaults.yaml")

        [default_project_data, default_build_defaults].each do |config|
          if File.readable? config
            self.config_from_yaml(config)
          else
            puts "Skipping load of expected default config #{config}, cannot read file."
            #   Since the default configuration files are not readable, most
            #   likely not present, at this point we assume the project_root
            #   isn't what we hoped it would be, and unset it.
            @project_root = nil
          end
        end

        if @project_root
          self.config
        end
      end