[MacPorts] #58895: gcc9: search path for standard libraries is incomplete/incorrect (was: OpenBLAS @0.3.7 +native build failure: ld: library not found for -lSystem)

[MacPorts]

#58895: gcc9: search path for standard libraries is incomplete/incorrect
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  Reporter:  prbuen  |      Owner:  (none)
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  gcc9    |
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Changes (by kencu):

 * owner:  NicosPavlov => (none)
 * cc: michaelld (removed)
 * port:  OpenBLAS => gcc9


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Ticket URL: <https://trac.macports.org/ticket/58895#comment:14>
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