[Bug preprocessor/61638] "warning: multi-line comment" unclear and has false positives

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61638

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And you also can't use #pragma GCC diagnostic ignored "-Wcomment" to silence
it.