* i386_ld.c (elf_i386_finalize_plt): Don't change symbol table entries

	* i386_ld.c (elf_i386_finalize_plt): Don't change symbol table entries
	for PLT entries if there is no local definition.

	* ld.c (parse_option): Handle -z ignore like --as-needed and
	-z record like --no-as-needed.
	* ld.h (struct ld_state): Remove ignore_unused_dsos field.
	* ldgeneric.c (new_generated_scn): Always compute ndt_needed by
	looping over DSOs.  When deciding about adding DT_NEEDED entries
	use ->as_needed instead of ignore_unused_dsos.