[MacPorts] #54785: R-app 1.68.1 fails to build on 10.13 beta 9 (high sierra) with Xcode 9.0 beta 6

[MacPorts]

#54785: R-app 1.68.1 fails to build on 10.13 beta 9 (high sierra)  with Xcode 9.0
beta 6
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  Reporter:  AP1010  |      Owner:  kjell.konis@…
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.4.1
Resolution:          |   Keywords:  highsierra sierra xcode9
      Port:  R-app   |
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Changes (by raimue):

 * keywords:  highsierra => highsierra sierra xcode9


Comment:

 The build also fails on macOS 10.12, so Xcode 9 seems to be the culprit.

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Ticket URL: <https://trac.macports.org/ticket/54785#comment:4>
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