[MacPorts] #64427: libgphoto2: builds failing on some buildbots

[MacPorts]

#64427: libgphoto2: builds failing on some buildbots
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  Reporter:  mascguy     |      Owner:  ryandesign
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:
      Port:  libgphoto2  |
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Comment (by thomasrussellmurphy):

 I'm seeing this failure with the same `js0n.c` line referenced on 10.14.6.
 If useful, I can provide a full log.

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Ticket URL: <https://trac.macports.org/ticket/64427#comment:4>
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