https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108342
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #5)
> I don't know whether clang allows packing non-PODs, or just doesn't ever
> warn for them, or has a special case for std::complex, or does something
> smarter like not warn for types that have no padding bytes anyway (so that
> packing them would be a no-op).
clang allows packing of non-PODs:
```
class f
{
public:
f();
private:
int t[2];
};
typedef struct __attribute__((__packed__))
{
/** Every frame starts with BB_FRAME_MAGIC. */
unsigned magic;
unsigned char t;
f bb_iq_samples[100];
} bb_frame_t;
```
