[MacPorts] #59480: R @3.5.1_3 +builtin_lapack+cairo+gcc8+recommended+x11: Building issue: Symbol not found: _timespec_get expected in: /usr/lib/libSystem.B.dylib

[MacPorts]

#59480: R @3.5.1_3 +builtin_lapack+cairo+gcc8+recommended+x11: Building issue:
Symbol not found: _timespec_get expected in: /usr/lib/libSystem.B.dylib
------------------------+----------------------
  Reporter:  ceandrade  |      Owner:  kjellpk
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:
      Port:  R          |
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Comment (by cooljeanius):

 I think this is a dup of #59453

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Ticket URL: <https://trac.macports.org/ticket/59480#comment:3>
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