[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:  kencu
      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):

 Yes, for the headers/SDK definitions.

 But then the library function replacements should still hinge on
 MIN_REQUIRED as that is what’s in the system library...

 I think the library may have to be unique to each os.version and so
 setting for a deployment target less than the os won’t reliably work,

 Unless do something like static linking, etc.

 Luckily it’s not a common use case on MacPorts...

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Ticket URL: <https://trac.macports.org/ticket/59135#comment:4>
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