r189218 - Simplify now that -O4 just maps to -O3 and -O is an alias of -O2.

Mon Aug 26 12:22:59 PDT 2013

On 26 August 2013 12:11, Jordan Rose <jordan_rose at apple.com> wrote:
> Any way to warn on the use of "-O4" this way? I still think that's a good idea for at least one release.

Something like the attached patch?

Cheers,
Rafael
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