[MacPorts] #55317: gmsh won't build with xcode 9.1

[MacPorts]

#55317: gmsh won't build with xcode 9.1
----------------------+--------------------
  Reporter:  dershow  |      Owner:
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  xcode9
      Port:  gmsh     |
----------------------+--------------------
Changes (by dershow):

 * Attachment "main.log" added.


--
Ticket URL: <https://trac.macports.org/ticket/55317>
MacPorts <https://www.macports.org/>
Ports system for macOS