...but just to file descriptor 2.

Still, it's a little weird that it only prints to file descriptor 2 (hard-wired), if STDERR is closed. I.e., if you reopen STDERR after fd 2 has been taken by something else, so STDERR is then associated with fd 3 for example, the warning is nicely printed to fd 3, not fd 2...

In other words, it seems this behaviour is explicitly coded somewhere as a fallback for when STDERR is closed.

In reply to Re^2: Using warn() when STDERR is closed by almut
in thread Using warn() when STDERR is closed by akeyes

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