undefined symbol: __cxx_global_var_init

[Andarwinux]

main.cpp

int DoIt()
{
    return 0; 
}
inline int Unused0 = DoIt();

int GetUnused();

int main(int, char **)
{
    return GetUnused();
}

lib.cpp

int DoIt();
inline int Unused0 = DoIt();

int GetUnused()
{
    return Unused0;
}

x86_64-w64-mingw32-clang++ -mguard=cf -flto=thin lib.cpp main.cpp

ld.lld: error: undefined symbol: __cxx_global_var_init
>>> referenced by /tmp/a.exe.lto.main-bf068e.obj
clang: error: linker command failed with exit code 1 (use -v to see invocation)

It looks like only the most recent nightly appears this

[mstorsjo]

Bisected and reported further upstream, see llvm/llvm-project#110232.

[mstorsjo]

The problematic commit upstream was reverted, so this should be fixed in the next nightly (in around 24h).