* include/bits/regex_executor.tcc (_Backref_matcher::_M_apply): Use
	_GLIBCXX_STD_A to refer to normal mode algorithms.
	* testsuite/28_regex/headers/regex/parallel_mode.cc: New test.
	* testsuite/28_regex/headers/regex/std_c++0x_neg.cc: Remove empty
	whitespace.

From-SVN: r265314