* objc/objc-act.c: Include ggc.h.
	(objc_tree_index, objc_global_trees): Convert most of the
	static tree variables into a static array with previous names
	as defines.
	(objc_ellipsis_node): New variable.
	(lang_init): Call objc_act_parse_init and c_parse_init.
	Create objc_ellipsis_node.
	(build_selector_translation_table): Use objc_ellipsis_node instead
	of (tree)1.
	(hack_method_prototype): Likewise.
	(get_arg_type_list): Likewise.
	(start_method_def): Likewise.
	(continue_method_def): Likewise.
	(gen_method_decl): Likewise.
	(ggc_mark_imp_list): New function.
	(ggc_mark_hash_table): New function.
	(objc_act_parse_init): New function.
	* objc/objc-act.h (objc_ellipsis_node): Add extern variable.
	* c-parse.in (c_parse_init): For objc add roots of objc specific
	local tree variables.
	* objc/objc-parse.y: Rebuilt.
	* objc/objc-parse.c: Rebuilt.
	(opt_parm_list): Use objc_ellipsis_node instead of (tree)1.

	* Object.m (strlen): Provide prototype on all 64bit platforms,
	not only alpha.
	* sarray.c (memcpy): Likewise.
	* encoding.c (objc_layout_finish_structure): Don't use
	ROUND_TYPE_ALIGN on sparc.

From-SVN: r33092