[MacPorts] #57994: OpenBLAS compilation fails on MacBook Pro MacOS 10.14

[MacPorts]

#57994: OpenBLAS compilation fails on MacBook Pro MacOS 10.14
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  Reporter:  Tim-at-AST  |      Owner:  NicosPavlov
      Type:  defect      |     Status:  reopened
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.5.4
Resolution:              |   Keywords:
      Port:  OpenBLAS    |
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Comment (by adamcrussell):

 I had the same issue as the OP and the suggested fix

 sudo port uninstall gcc9
 sudo port clean gcc9
 sudo port -s install gcc9
 sudo port -s install OpenBLAS

 worked for me as well.

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Ticket URL: <https://trac.macports.org/ticket/57994#comment:27>
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