* config/sparc/xm-sp64.h: Avoid using __sparc_v9__ when testing
	for sparc64.
	* config/sparc/sparc.h: Likewise.
	* config/sparc/xm-sysv4-64.h: Likewise.
	* config/float-sparc.h: Likewise.
	* glimits.h: Likewise.
	* longlong.h: Likewise.

From-SVN: r30917