[MacPorts] #61492: Cannot build openmpi-gcc10, mpich-gcc10, etc. on macOS 11.0.1 Big Sur, Xcode 12.2

[MacPorts]

#61492: Cannot build openmpi-gcc10, mpich-gcc10, etc. on macOS 11.0.1 Big Sur,
Xcode 12.2
-------------------------------+--------------------
  Reporter:  ChristopherMayes  |      Owner:  (none)
      Type:  defect            |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.6.4
Resolution:                    |   Keywords:
      Port:  openmpi mpich     |
-------------------------------+--------------------

Comment (by Michael Lass <michael.lass@…>):

 In [changeset:"772b1936909dba5b0096c6862f189bcde67d4dab/macports-ports"
 772b1936909dba5b0096c6862f189bcde67d4dab/macports-ports] (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="772b1936909dba5b0096c6862f189bcde67d4dab"
 openmpi: update to 4.1.0

 This fixes the build on macOS 11 Big Sur.

 See: https://trac.macports.org/ticket/61492
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61492#comment:21>
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