public function rules()
{
$rules = array();
$rules[] = RegExpPatchRule::files('Makefile')->allOf(array('/^BUILD_/'))->replaces('/\\$\\(CC\\)/', '$(CXX)');
$rules[] = RegExpPatchRule::files('Makefile')->allOf(array('/^EXTRA_LIBS =/'))->replaces('/^(.*)$/', '$1 -lstdc++');
return $rules;
}