[MacPorts] #62783: openmpi: validate that buildbot binaries are hardware-independent

[MacPorts]

#62783: openmpi: validate that buildbot binaries are hardware-independent
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  Reporter:  mascguy  |      Owner:  mascguy
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  openmpi  |
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Comment (by mascguy):

 Reviewing sibling port `mpich`, there is one case where buildbot binaries
 should not be used: When using the compiler provided by Xcode. That can
 vary between the buildbot and users' machines, so don't use binaries in
 that case.

 So the following subports will not use a buildbot binary:
 * openmpi-default
 * openmpi-clang
 * openmpi-devel-default
 * openmpi-devel-clang

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Ticket URL: <https://trac.macports.org/ticket/62783#comment:2>
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