[MacPorts] #64276: macports will not build ports with Xcode 13.2.1

[MacPorts]

#64276: macports will not build ports with Xcode 13.2.1
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  Reporter:  AgilentGCMS  |      Owner:  (none)
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.7.1
Resolution:               |   Keywords:
      Port:  gperf        |
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Comment (by AgilentGCMS):

 There was indeed another config.log inside the lib folder. I've attached
 that now.

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Ticket URL: <https://trac.macports.org/ticket/64276#comment:12>
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