On Tue, 31 Mar 2026 at 10:33, Peter Eisentraut <[email protected]> wrote: > Hmm, note that C++ is also used for LLVM/JIT, and by requiring this > additional feature set we are also imposing new requirements for those > users. This has not been fully explored, and I hesitate to add such a > new requirement at the last moment.
I understand the hesitation, but in practice we already impose those requirements anyway for non-MSVC compilers because test_cplusplusext doesn't compile without it. So any compiler that would cause problems with the new featureset would have already complained about that before. > But how about this: We add the feature test that you propose and enable > the extension based on that. See attached patch. This reduces to > essentially a three-line patch, much simpler than all previous proposals. If you're still worried, then this sounds like a fine middle-ground for now. I think we should reconsider adding the automatic /std:c++20 flag for the PG20 dev cycle though.
