[Issue 17868] add pragma(crt_con/destructor)

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17868

--- Comment #7 from Martin Nowak <c...@dawg.eu> ---
Let's drop the priority for now, too much hassle to debug OMF and optlink,
wasn't supportable on OSX anyhow.

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