pymol crashing under Qt on Catalina

[Chris Jones]

> On 13 Oct 2019, at 2:46 pm, Joshua Root <jmr at macports.org> wrote:
> 
> On 2019-10-14 00:35 , Chris Jones wrote:
>> 
>> After that, my next guess would perhaps another issue related to the
>> stack-check issue with Xcode 11. See e.g. the fix I added for OpenBLAS
>> 
>> https://github.com/macports/macports-ports/commit/6e78e5c9495b4dc4e7e050fae2b41dd5b9accfdd#diff-a755de84ca7f97ab071328807d829e0b
> 
> I'd be wary of removing a hardening measure and leaving it at that. It
> could be revealing a genuine stack-smashing bug.

Agreed. Accordingly to Jeremy though its a Xcode bug expected to be fixed in 11.2. Thats why I subsequently added a version check, see e.g.

https://github.com/macports/macports-ports/blob/master/math/OpenBLAS/Portfile

Line 109.

> 
> - Josh
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