[MacPorts] #61879: Add clang11 sub-port to openmpi

[MacPorts]

#61879: Add clang11 sub-port to openmpi
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  Reporter:  aivazis      |      Owner:  mascguy
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  openmpi      |
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Comment (by mascguy):

 I'll try building against gcc 10, for investigative purposes.

 But if we need gcc 11, we'll have to wait for that to be released. It
 looks like it's potentially imminent, but we'll see.

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Ticket URL: <https://trac.macports.org/ticket/61879#comment:7>
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