* cp-tree.h (cp_tree_index): Add CPTI_DSO_HANDLE.

	(dso_handle_node): New macro.
	(flag_use_cxa_atexit): New variable.
	(declare_global_var): New function.
	(start_anon_func): Remove declaration.
	(end_anon_func): Likewise.
	* decl.c (get_atexit_node): New function, split out from
	destroy_local_static.  Handle flag_use_cxa_atexit.
	(get_dso_handle_node): Likewise.
	(start_cleanup_fn): Renamed from start_anon_func.  Moved here from
	except.c.  Handle flag_use_cxa_atexit.
	(end_cleanup_fn): Renamed from end_anon_func.  Moved here from
	except.c.
	(declare_global_var): New variable.
	(destroy_local_static): Handle flag_use_cxa_atexit.
	* decl2.c (flag_use_cxa_atexit): New variable.
	(lang_f_options): Likewise.
	* except.c (start_anon_func): Remove.
	(end_anon_func): Liekwise.
	* lang-options.h: Add -fuse-cxa-atexit and -fno-use-cxa-atexit.
	* rtti.c (get_tinfo_var): Use declare_global_var.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30990 138bc75d-0d04-0410-961f-82ee72b054a4