PR driver/59321
	* collect2.c (main): Check -fuse-ld=[bfd|gold] when
	DEFAULT_LINKER is defined.
	* common.opt (fuse-ld=bfd): Add Driver.
	(fuse-ld=gold): Likewise.
	* gcc.c (use_ld): New variable.
	(driver_handle_option): Set use_ld for OPT_fuse_ld_bfd and
	OPT_fuse_ld_gold.
	(main): Check -fuse-ld=[bfd|gold] for -print-prog-name=ld.

From-SVN: r206129