# File lib/bundler/source.rb, line 86
      def specs
        @specs ||= begin
          index = Index.new

          system_paths = Gem::SourceIndex.installed_spec_directories
          system_paths.reject!{|d| d == Bundler.specs_path.to_s }

          system_index = Gem::SourceIndex.from_gems_in(*system_paths)
          system_index.to_a.reverse.each do |name, spec|
            spec.source = self
            index << spec
          end

          index
        end
      end