[MacPorts] #55233: OpenMPI @1.10.3 builds but always hangs or segfaults on High Sierra

[MacPorts]

#55233: OpenMPI @1.10.3 builds but always hangs or segfaults on High Sierra
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  Reporter:  mkuron           |      Owner:
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.4.2
Resolution:                   |   Keywords:  highsierra
      Port:  openmpi-default  |
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Comment (by mkuron):

 Note that this is with Apple's Clang compiler (openmpi-default port). With
 GCC (openmpi-gcc7 port), there is another unrelated issue #54993 where
 OpenMPI doesn't even build.

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Ticket URL: <https://trac.macports.org/ticket/55233#comment:1>
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