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

[zsojka at seznam dot cz via Gcc-bugs]

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

--- Comment #11 from Zdenek Sojka <zsojka at seznam dot cz> ---
I can observe broken header symlinks on other long-standing Gentoo systems. I
don't know what's the situation like for other distros.