[Bug c++/89519] POD data member fails to be packed; G++ incorrectly claims it is non-POD

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89519

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Matt Whitlock from comment #3)
> For instance, the ABI of std::string differs between C++98 and C++11.

No it doesn't.

https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html