[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:
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.4.1
Resolution:          |   Keywords:
      Port:  R-app   |
---------------------+-------------------
Changes (by AP1010):

 * Attachment "main.log" added.

 Log file

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