[Bug c++/125775] Precompiled header is not used when -Wpedantic is enabled

[usenet at udoline dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125775

--- Comment #4 from Udo Steinbach <usenet at udoline dot de> ---
I think my 2 commands showed that warnings aren't just purely passive in the
sense of "Show this warning? Get info, send to output."