[patch] Fix pr9701

[Eli Friedman]

On Mon, Sep 23, 2013 at 2:17 PM, Rafael Espíndola <
rafael.espindola at gmail.com> wrote:

> On 5 September 2013 14:27, Rafael Espíndola <rafael.espindola at gmail.com>
> wrote:
> > On 3 September 2013 21:11, Richard Smith <richard at metafoo.co.uk> wrote:
> >> What about -munknown-to-clang-option? We really want an error on those
> ones,
> >> since they can change the ABI.
> >
> > The behavior of -funknown-to-clang-option, -Wunknown-to-clang-option
> > and -munknown-to-clang-option is unchanged (we just warn). I think we
> > should be more strict about these too, but since they are the most
> > common options I would like to change them in a follow up patch.
>
> Ping.
>
>
Please add tests for the current behavior anyway, so it's clear what the
patch does and does not do.

Otherwise LGTM.

-Eli
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