bfd/

bfd/
	* bfd-in.h (enum notice_asneeded_action): Define.
	* bfd-in2.h: Regenerate.
	* elflink.c (elf_link_add_object_symbols): Call linker "notice"
	function with NULL name for as-needed handling.
ld/
	* ld.h (handle_asneeded_cref): Declare.
	* ldcref.c: Include objalloc.h.
	(old_table, old_count, old_tab, alloc_mark): New variables.
	(tabsize, entsize, refsize, old_symcount): Likewise.
	(add_cref): Use bfd_hash_allocate for refs.
	(handle_asneeded_cref): New function.
	* ldmain.c (notice): Call handle_asneeded_cref for NULL name.