r191394 - Produce an error for unknown -f options.

[Nick Lewycky]

On 25 September 2013 18:53, Rafael Espíndola <rafael.espindola at gmail.com>wrote:

> >> Err, we aren't ready for this. If we're going to do this, could you
> stage
> >> it such that the gcc flags are added but ignored, then we error on
> unknown
> >> options?
> >
> >
> > This is already how it works.  If our list of ignored gcc -f flags isn't
> > complete enough, that's simple to fix.
>
> I am happy to revert if needed, but as Eli pointed out adding ignored
> options is really easy. Do you have a list?
>

Using regex syntax:

-falign-functions.*
-fasynchronous-unwind-tables
-fbuiltin-.*
-fcallgraph-profiles-sections
-ffloat-store
-feliminate-unused-debug-types
-fgcse
-fident
-fivopts
-fnon-call-exceptions
-fpermissive
-fplugin-arg-.*
-fplugin=.*
-fprefetch-loop-arrays
-fprofile-correction
-fprofile-dir.*
-fprofile-use.*
-fprofile-values
-frounding-math
-fripa
-fsee
-ftracer
-ftree-.*
-funroll-all-loops
-fwarn-incomplete-patterns

and the -fno- versions of each of these. I may also be missing more, but
this is a start.

Nick
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