[MacPorts] #59096: postgis2 fails to build with Xcode 11 on 10.14

[MacPorts]

#59096: postgis2  fails to build with Xcode 11 on 10.14
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  Reporter:  rstrauss-logyx  |      Owner:  Veence
      Type:  defect          |     Status:  closed
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.6.0
Resolution:  wontfix         |   Keywords:
      Port:  postgis2        |
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Comment (by jmroot):

 It is the port that is broken, because it's not using configure.sdkroot.
 Whether we like it or not, the new reality that Apple has made is that the
 SDK your build tool built against may not be the SDK you have to build
 with now.

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Ticket URL: <https://trac.macports.org/ticket/59096#comment:8>
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