Don't use ATTRIBUTE_UNUSED on a parameter that, as in arc_option_init_struct, is in fact used unconditionally.
handle_option hooks take a location, so use warning_at not plain warning
in arc_handle_option. Same diagnostic issue as noted before applies.
There are lots of obsolete bits in your ASM_SPEC and LINK_SPEC, such as
%{v}, %{version:-v}, %{b}, %{Wl,*:%*}., %{!dynamic-linker:...}. Remove
them.
--
Joseph S. Myers
jos...@codesourcery.com
