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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++/110077] [14 regression] libstdc++-abi/abi_check FAILs
 on Solaris
Date: Fri, 09 Jun 2023 10:17:58 +0000
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X-Bugzilla-Keywords: ABI
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110077

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I'm testing this fix:

--- a/libstdc++-v3/src/c++17/floating_from_chars.cc
+++ b/libstdc++-v3/src/c++17/floating_from_chars.cc
@@ -1325,7 +1325,8 @@ _ZSt10from_charsPKcS0_RDF128_St12chars_format(const c=
har*
first,
                                              __ieee128& value,
                                              chars_format fmt) noexcept
 __attribute__((alias ("_ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format"=
)));
-#elif defined(__FLT128_MANT_DIG__)
+#elif __FLT128_MANT_DIG__ =3D=3D 113 && __LDBL_MANT_DIG__ !=3D 113
+// Overload for _Float128 is not defined inline in <charconv>, define it h=
ere.
 from_chars_result
 from_chars(const char* first, const char* last, _Float128& value,
           chars_format fmt) noexcept=