[MacPorts] #68490: libomp @17.0.3: needs compiler with atomic support

[MacPorts]

#68490: libomp @17.0.3: needs compiler with atomic support
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  Reporter:  RobK88  |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.8.1
Resolution:          |   Keywords:  lion mountainlion mavericks
      Port:  libomp  |
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Comment (by kencu):

 The most appropriate compiler to use for this on older systems would be
 clang-11-bootstrap, I would think.

 No circular deps with that.

 If clang-11-bootstrap doesn't have atomics enabled, I can toggle that on.

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Ticket URL: <https://trac.macports.org/ticket/68490#comment:7>
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