[MacPorts] #59135: legacy-support: functions properly only if os.version = deployment target

[MacPorts]

#59135: legacy-support: functions properly only if os.version = deployment target
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  Reporter:  kencu                               |      Owner:
                                                 |  cjones051073
      Type:  defect                              |     Status:  assigned
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  legacy-support, legacy-support-     |
  devel                                          |
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Comment (by kencu):

 I suspect that kind of fix is the only kind of fix that might
 realistically work... well done, Marcus. Hope it pans out.

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Ticket URL: <https://trac.macports.org/ticket/59135#comment:11>
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