* config/alpha/vms.h (DWARF2_UNWIND_INFO, EH_RETURN_HANDLER_RTX,
	LINK_EH_SPEC, MD_FALLBACK_FRAME_STATE_FOR): Define.
	* config/alpha/t-vms (EXTRA_PARTS): Add vms-dwarf2eh.o
	(vms-dwarf2eh.o): Add Makefile rule.
	* config/alpha/vms-ld.c (main): Handle vms-dwarf2eh.o.
	* config/alpha/vms-dwarf2eh.asm: New file.

From-SVN: r48451