[MacPorts] #55706: gle-graphics @4.2.5: build failure under 10.13

[MacPorts]

#55706: gle-graphics @4.2.5: build failure under 10.13
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  Reporter:  majoc-at-astro  |      Owner:
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.4.2
Resolution:                  |   Keywords:
      Port:  gle-graphics    |
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Comment (by ryandesign):

 Confirmed on Sierra with Xcode 9.2. It built successfully on Sierra on
 2017-04-24 with whatever version of Xcode we had installed on the buildbot
 worker at that time.

 The code in question is... terrible...

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Ticket URL: <https://trac.macports.org/ticket/55706#comment:1>
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