class Bundler::RubygemsIntegration

def backport_spec_file
  redefine_method(Gem::Specification, :spec_dir) do
    @spec_dir ||= File.join base_dir, "specifications"
  end
  redefine_method(Gem::Specification, :spec_file) do
    @spec_file ||= File.join spec_dir, "#{full_name}.gemspec"
  end
end