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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/110077] [14 regression] libstdc++-abi/abi_check FAILs
 on Solaris
Date: Fri, 09 Jun 2023 12:26:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110077

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:00da6bcfccbc5ab13821d8dd7334dd48c22d5702

commit r14-1651-g00da6bcfccbc5ab13821d8dd7334dd48c22d5702
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Jun 9 11:08:03 2023 +0100

    libstdc++: Remove duplicate definition of _Float128 std::from_chars
[PR110077]

    When long double uses IEEE binary128 representation we define the
    _Float128 overload of std::from_chars inline in <charconv>. My changes
    in r14-1431-g7037e7b6e4ac41 cause it to also be defined non-inline in
    the library, leading to an abi-check failure for (at least) sparc and
    aarch64.

    Suppress the definition in the library if long double and _Float128 have
    are both IEEE binary128.

    libstdc++-v3/ChangeLog:

            PR libstdc++/110077
            * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
            Only define if _Float128 and long double have different
            representations.=