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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/107693] undefined reference to
 `_ZSt8to_charsPcS_DF128_St12chars_formati' std::format does not work on
 x86_64-w64-mingw32
Date: Tue, 15 Nov 2022 10:55:13 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107693

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu=
.org
             Status|UNCONFIRMED                 |ASSIGNED
   Target Milestone|---                         |13.0
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-11-15

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It's just a bug in the macro definitions in <format>, we don't have
std::to_chars for _Float128 for mingw so shouldn't try to support it in
std::format.

I have a patch already.=