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[Bug libstdc++/85672] [9 Regression] error: redefinition of 'constexpr long double std::abs(long double)'
- From: "redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 07 May 2018 12:49:28 +0000
- Subject: [Bug libstdc++/85672] [9 Regression] error: redefinition of 'constexpr long double std::abs(long double)'
- Auto-submitted: auto-generated
- References: <bug-85672-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85672
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #5)
> (In reply to Marc Glisse from comment #4)
> > - -Wsystem-headers -Wundef will warn
>
> That's the status quo. It would take a ton of effort to avoid -Wundef
> warnings in libstdc++ and that's not something I'm going to work on.
In other words, don't use -Wsystem-headers -Wundef