* system.h (GCC_DIAGNOSTIC_PUSH_IGNORED, GCC_DIAGNOSTIC_POP,
	GCC_DIAGNOSTIC_STRINGIFY): Define.

	* simplify.c (simplify_transformation_to_array): Use
	GCC_DIAGNOSTIC_PUSH_IGNORED and GCC_DIAGNOSTIC_POP instead of
	#pragma GCC diagnostic {push,ignored,pop}.

From-SVN: r244179