Re: alignas (C11)

Peter Eisentraut <peter(at)eisentraut(dot)org> writes:
> Well, in C11, alignas is itself a macro (defined to _Alignas). I
> suppose not in C++ though. That seems too tricky, though. I went with
> your original proposal of disabling the affected typedefs on the
> affected platform. That seems safest. These types aren't likely to be
> used in extensions anyway, so this should have minimal practical impact.

I suspected that we'd have to supply the types as abstract structs
per my earlier suggestion, and just found a good reason why:
"headerscheck --cplusplus" is failing for me on RHEL8, because it
tries to parse all headers under C++. This is blocking progress on
another patch, so I went ahead and committed the addition.

regards, tom lane