I mean, de facto, if Windows isn't good at it, at the very least compilers will have a "never mind ignore this" option if they even do start enforcing them. And

I mean, de facto, if Windows isn't good at it, at the very least compilers will have a "never mind ignore this" option if they even do start enforcing them. And while Raymond Chen knows Windows and can speak to it, I'd bet the Linux kernel has plenty of violations of this, and it's the same thing; no future C compilers are going to invalidate that no matter what some C committee somewhere says.