c.opt doesn't use Var() ?

[DJ Delorie]

> > 	* c-common.h (warn_cast_qual, warn_missing_format_attribute,
> > 	warn_pointer_arith, warn_missing_prototypes, warn_parentheses,
> > 	warn_missing_braces, warn_sign_compare, warn_long_long,
> > 	warn_redundant_decls, warn_float_equal, warn_char_subscripts,
> > 	warn_conversion, warn_format_y2k, warn_format_extra_args,
> > 	warn_format_zero_length, warn_format_nonliteral,
> > 	warn_format_security, mesg_implicit_function_declaration,
> > 	warn_bad_function_cast, warn_traditional,
> > 	warn_declaration_after_statement, warn_strict_prototypes,
> > 	warn_missing_declarations, warn_nested_externs,
> > 	warn_sequence_point, warn_init_self, warn_div_by_zero,
> > 	warn_implicit_int, warn_nonnull, warn_old_style_definition,
> > 	warn_selector, warn_undeclared_selector, warn_protocol,
> > 	warn_abi, warn_invalid_offsetof, warn_ctor_dtor_privacy,
> > 	warn_overloaded_virtual, warn_nonvdtor, warn_reorder,
> > 	warn_synth, warn_pmf2ptr, warn_ecpp, warn_sign_promo,
> > 	warn_old_style_cast, warn_nontemplate_friend,
> > 	warn_deprecated): Remove explicit declarations.
> > 	* c-common.c: Likewise, remove explicit definitions.
> > 	* c-opts.c: Likewise, remove explicit assignments.
> > 	* c.opts: Likewise, add implicit declare/define/assign.
> 
> If this bootstrapped it is OK.  Thanks!

Bootstrapped under linux and applied.