* symbols.c (resolve_symbol_value): If a symbol is equated to an

	* symbols.c (resolve_symbol_value): If a symbol is equated to an
	undefined symbol, preserve the X_op of O_symbol.
	(S_GET_VALUE): Fix check to permit this case.
	* write.c (write_relocs): If a reloc is against an undefined
	symbol equated to another symbol, change the reloc to be against
	the latter symbol.
	* config/obj-coff.c (do_relocs_for): Likewise.
If the MRI assembler sees
foo EQU bar
	call foo
where bar is not defined, it generates a reloc against bar rather than
against foo.  Since the gas documentation does not define this case,
this change makes gas compatible.