[Bug pch/61250] Random pch failures on x86_64-apple-darwin1(3|4).

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61250

--- Comment #6 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Does the -Winvalid-pch flag give any extra information?

AFAICT no.