[patch] avoid ABI warnings on arm when running the libstdc++v3 testsuite

[Mark Mitchell]

Paolo Carlini wrote:

> Interesting clarification... Now, why such inform are enabled and
> disabled via -W options? And why the manuale describes -Wabi as: "Warn
> when G++ generates..."? Frankly I'm quite a bit confused...

I think it's reasonable for the compiler to issue messages of lower
severity than warning (in this case, inform) even when using a -W
option.  I guess we could argue that this should be a warning instead,
but it's not something that even might represent a bug in your code.

-- 
Mark Mitchell
CodeSourcery
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