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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/103340] [12 Regression] constexpr std::string is
 incompatible with --enable-libstdcxx-allocator
Date: Wed, 24 Nov 2021 09:33:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103340

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #2)
> Making the others work isn't difficult.

HA!

Making them usable in constexpr wasn't difficult, but analysing the test
results and realising that they're completely broken was much harder, see PR
103400. And --enable-libstdcxx-allocator=3Dbitmap had been unable to bootst=
rap
for years, see PR 103381.=