[Bug libstdc++/116857] [15 Regression] libsupc++ build failure on mingw32: libstdc++-v3/libsupc++/guard.cc:39:1: error: declaration of 'int __cxxabiv1::__cxa_guard_acquire(__guard*) noexcept' has a different exception specifier

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116857

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Probably r15-3859-g63a598deb0c9fc