https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87521
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- The C++03 definition of POD struct (which is what matters for the ABI) requires that it has no user-defined destructor. Your type has a user-declared destructor, which is implicitly-defined when odr-used. That is not user-defined. So it's can be a POD struct.
