[MacPorts] #63096: MacPort installer requires Rosetta 2

[MacPorts]

#63096: MacPort installer requires Rosetta 2
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  Reporter:  gagarine  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  base      |    Version:
Resolution:            |   Keywords:
      Port:            |
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Comment (by gagarine):

 As soon as I launch the installer I get a warning. Certainly is simply a
 missing flag in the installer. Adding "arm64" may fix it.

 hostArchtectures="x86_64,arm64"

 https://developer.apple.com/library/archive/documentation/DeveloperTools/Reference/DistributionDefinitionRef/Chapters/Distribution_XML_Ref.html#//apple_ref/doc/uid/TP40005370-CH100-SW41

 A related question is why using a .pkg and not directly launch a script
 like homebrew, composer and many others command line tools.

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Ticket URL: <https://trac.macports.org/ticket/63096#comment:2>
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