* config/mn10300/mn10300-protos.h (mn10300_override_options): Declare.
	* config/mn10300/mn10300.h (target_flags, TARGET_MULT_BUG)
	(TARGET_SWITCHES, TARGET_DEFAULT): Delete.
	(processor_type): New enum.
	(mn10300_processor): New variable.
	(TARGET_AM33, TARGET_AM33_2): Redefine in terms of mn10300_processor.
	(PROCESSOR_DEFAULT, OVERRIDE_OPTIONS): New macros.
	* config/mn10300/linux.h (TARGET_SWITCHES, TARGET_DEFAULT): Delete.
	(PROCESSOR_DEFAULT): New macro.
	* config/mn10300/mn10300.c (mn10300_processor): New variable.
	(TARGET_DEFAULT_TARGET_FLAGS, TARGET_HANDLE_OPTION): Override defaults.
	(mn10300_handle_option, mn10300_override_options): New functions.
	* config/mn10300/mn10300.opt: New file.

From-SVN: r97609