2007-05-17  Benjamin Kosnik  <bkoz@redhat.com>

	* include/tr1/cmath: Guard special math with
	__GXX_EXPERIMENTAL_CXX0X__.
	* testsuite/26_numerics/headers/cmath/types_std_c++0x_neg.cc:
	Remove xfail.

From-SVN: r124791