Re: Change copyObject() to use typeof_unqual

Jelte Fennema-Nio <postgres@jeltef.nl> writes:
> On Mon, 16 Mar 2026 at 13:47, Peter Eisentraut <peter@eisentraut.org> wrote:
>> I'm tempted to go with my proposed patch of a version-based override for
>> the time being.

> Sounds good to me.

I confirmed that Peter's
0001-Hardcode-override-of-typeof_unqual-for-clang-for-bit.patch
fixes the problem on my Fedora 40 system.  I concur it seems a
lot less messy than Jelte's patch, although I have a nasty
feeling that we'll eventually need something closer to that.

> But let's not forget to swap back the order of
> detection for typeof_unqual vs __typeof_unqual__. Afaict that's not
> needed anymore and the comment there only becomes confusing with this
> new fix.

+1

> Also, it might be nice to only do your version based override, if
> we're actually compiling bitcode. In my patch I used
> -DPG_COMPILING_BITCODE for that. Otherwise this override can also
> happen for regular compiles using clang, which I think would be a bit
> confusing.

Doesn't seem like an issue.  If we're using an old clang as CC, we
would have detected that it doesn't accept typeof_unqual anyway.
I think there is also no effect if we are using gcc as CC and
clang++ as CXX, because per upthread discussion, typeof_unqual
isn't going to work in C++ mode anyhow.

            regards, tom lane