class Bundler::Source::Path

def default_spec(*args)
  return @default_spec if args.empty?
  name, version = *args
  @default_spec = Specification.new do |s|
    s.name     = name
    s.source   = self
    s.version  = Gem::Version.new(version)
    s.relative_loaded_from = "#{name}.gemspec"
  end
end