[Bug libstdc++/83834] [6/7/8 Regression] FAIL: libstdc++-abi/abi_check

[nsz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83834

--- Comment #8 from nsz at gcc dot gnu.org ---
ok it's because of 'void f()' vs 'f()'

old:

8133          cxx_sym = bfd_demangle (link_info.output_bfd, sym,
Value returned is $2 = 0x2695a00 "void std::call_once<void (std::thread::*)(),
std::reference_wrapper<std::thread> >(std::once_flag&, void
(std::thread::*&&)(),
std::reference_wrapper<std::thread>&&)::{lambda()#2}::_FUN()"

new:

8132          cxx_sym = bfd_demangle (link_info.output_bfd, sym,
Value returned is $2 = 0x2598a70 "std::call_once<void (std::thread::*)(),
std::reference_wrapper<std::thread> >(std::once_flag&, void
(std::thread::*&&)(),
std::reference_wrapper<std::thread>&&)::{lambda()#2}::_FUN()"

i still don't know what's the expected behaviour though.