[Bug c++/61412] Warnings incorrectly suppressed when compiling previously preprocessed file

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61412

--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Matt Godbolt from comment #12)
> Compiling the
> original file (not the preprocessed version) directly warns as expected.

Ah I misunderstood that part, sorry.