2008-08-18 Roland McGrath <roland@redhat.com>

	* configure.in (--with-cpu): Check compiler support for -march/-mcpu.
	* configure: Regenerated.
	* config.make.in (cflags-cpu): New substituted variable.
	(with-cpu): Variable removed.
	* Makeconfig (+cflags): Use $(cflags-cpu), not $(with-cpu).