[MacPorts] #54067: upc @5.2.0.1: error: unknown type name 'isl_constraint'

[MacPorts]

#54067: upc @5.2.0.1: error: unknown type name 'isl_constraint'
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  Reporter:  caverac  |      Owner:  tenomoto
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  upc      |
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Comment (by caverac):

 Thanks for the reply, should I try to upgrade gcc then? Thanks!!

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Ticket URL: <https://trac.macports.org/ticket/54067#comment:2>
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