[P-Nuts]

It’s explicitly stated: “I figured, okay, maybe it's doing some optimization because it was built on the 4B. So, I went and did a build on the B+ natively. It also broke.”

So she was originally compiling on a newer RPi, but immediately switched to compiling on the same one that couldn’t run it. And I believe the actual system images for RPi are built to support all models (there aren’t separate downloads for different models unless you want 64-bit) so it’s not crazy to think that everything would work building on a newer model.

This is just a packaging defect, Clang/LLVM isn’t being configured correctly by RPiOS (Raspbian).