class Bundler::SpecSet

def add_extra_platforms!(platforms)
  return platforms.concat([Gem::Platform::RUBY]).uniq if @specs.empty?
  new_platforms = all_platforms.select do |platform|
    next if platforms.include?(platform)
    next unless GemHelpers.generic(platform) == Gem::Platform::RUBY
    complete_platform(platform)
  end
  return platforms if new_platforms.empty?
  platforms.concat(new_platforms)
  less_specific_platform = new_platforms.find {|platform| platform != Gem::Platform::RUBY && Bundler.local_platform === platform && platform === Bundler.local_platform }
  platforms.delete(Bundler.local_platform) if less_specific_platform
  platforms
end