[MacPorts] #65539: isl v0.25: Failed to build isl on Macbook Pro osx 10.13.6

[MacPorts]

#65539: isl v0.25: Failed to build isl on Macbook Pro osx 10.13.6
-------------------------+--------------------
  Reporter:  Tom-Bertin  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.2
Resolution:              |   Keywords:
      Port:  isl         |
-------------------------+--------------------
Changes (by Tom-Bertin):

 * Attachment "main.log" added.

 main.log

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Ticket URL: <https://trac.macports.org/ticket/65539>
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