class Bundler::Source::Path::Installer

def generate_bin
  return if spec.executables.nil? || spec.executables.empty?
  if Bundler.requires_sudo?
    FileUtils.mkdir_p(@tmp_bin_dir) unless File.exist?(@tmp_bin_dir)
  end
  super
  if Bundler.requires_sudo?
    Bundler.mkdir_p @gem_bin_dir
    spec.executables.each do |exe|
      Bundler.sudo "cp -R #{@tmp_bin_dir}/#{exe} #{@gem_bin_dir}"
    end
  end
end