[Issue 22520] darwin: crt_destructor functions not executed on OSX 12

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22520

--- Comment #5 from Iain Buclaw <ibuclaw at gdcproject.org> ---
(In reply to Walter Bright from comment #4)
> But is __cxa_atexit() compatible with older OSX's ? What OS version did it
> start with?

It is in OSX 10.5, possibly older versions too.  That far exceeds DMD's minimum
version requirement of 10.9.

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