[fiedzia]

> It it will break BC, then don't use it?

So the choice is between insane behaviour, or breaking the code.

> Instead you started nitpicking on the solution. That's dishonest. And it makes the discussion endless.

Because the problem is unsolvable. You cannot get PHP to behave sanely unless you redo everything it does. If you fix one thing, dozens of other will fall apart.

>Every single major PHP framework is routinely doing it.

Right, I wasn't aware of this. How do you write libraries for PHP than, you choose between using what's in stdlib as it is and being used within a framework where exceptions are thrown? Support both? Ignore the problem? Or every library makes its own choice how stdlib should behave? Do the frameworks convert strerr and errno into something usable?