[PATCH] PR18327: -Wsystem-headers introduces build errors

[Argyrios Kyrtzidis]

On Jan 6, 2014, at 1:47 PM, Richard Smith <richard at metafoo.co.uk> wrote:

> One view on this is simply: -Wsystem-headers means "don't give system headers special treatment when emitting diagnostics”.

This is it exactly. “Treat all headers like normal headers"

> That would seem to make perfect sense to people developing system headers, and is our current behavior. What is the use case that leads to enabling -Wsystem-headers but not wanting that to lead to errors? PR18327 doesn't make that obvious.

Not sure I’m following that report, if one doesn’t like that that diagnostic is by default mapped to an error, maybe map it to a warning on the command-line or discuss whether it should not be mapped to error by default ?
I don’t see a need to complicate what -Wsystem-headers does.

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