* config/ia64/ia64.h (OVERRIDE_OPTIONS): Remove macros.
	* config/ia64/ia64-protos.h (ia64_override_options): Remove.
	* config/ia64/ia64.c (TARGET_OPTION_OVERRIDE): Define.
	(ia64_override_options): Rename to...
	(ia64_option_override): ... this one. Make static.

From-SVN: r161975