[MacPorts] #61430: Allow x86_64 ports to be used on arm64 hardware via Rosetta 2

[MacPorts]

#61430: Allow x86_64 ports to be used on arm64 hardware via Rosetta 2
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  Reporter:  ryandesign   |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:
Resolution:               |   Keywords:
      Port:               |
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Comment (by jmroot):

 You could certainly set build_arch (or configure.build_arch) to ppc on
 Intel machines with Rosetta, but we never auto-demoted the value like we
 do x86_64 to i386 or ppc64 to ppc.

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Ticket URL: <https://trac.macports.org/ticket/61430#comment:4>
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