class Bundler::Source::Path::Installer

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