[Bug tree-optimization/125187] -Wstringop-overflow warning while linking {fmt} with LTO

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125187

--- Comment #4 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Since this is one file source for lto, just provide the preprocessed source for
that.

Also this might not be a false positive either.