[Bug bootstrap/103306] [12 Regression] parallel build hangs since r12-5234-g04c5a9 when /usr/include includes broken symbolic links

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103306

--- Comment #13 from Zdenek Sojka <zsojka at seznam dot cz> ---
(In reply to Xi Ruoyao from comment #12)
> I'll make a workaround in maybe an hour...
> 
> But why should a distro ship broken symlinks?

It broke during on of the updates, probably around 2017.