https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112318
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Last reconfirmed| |2023-10-31 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Yes, the use of the deprecated function occurs in a system header, so it's suppressed. There's not really anything libstdc++ can do here. It seems to me that the front-end should consider the context where the deprecated function is declared as well as where it's used. If the declaration is not in a system header, then the use in a system header is probably a template instantiation involving a user's type. In which case, it's not "system" code, and should trigger the deprecated warning.