[MacPorts] #54982: port pinentry-mac fails to build on macOS 10.13 High Sierra with Xcode 9.0

[MacPorts]

#54982: port pinentry-mac fails to build on macOS 10.13 High Sierra with Xcode 9.0
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  Reporter:  korseby       |      Owner:  Ionic
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.4.1
Resolution:                |   Keywords:
      Port:  pinentry-mac  |
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Comment (by korseby):

 Seems to be a bug in Xcode 9. Re-installing
 /Applications/Xcode.app/Contents/Resources/Packages/XcodeSystemResources.pkg
 fixed the problem for me.

 I encountered a similar issue installing MacVIM. The bug in Xcode 9 was
 documented here:
 https://stackoverflow.com/questions/44962684/xcode-9-beta-2-fails-
 dvtpluginerrordomain-plugin-load-fails#45289055

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Ticket URL: <https://trac.macports.org/ticket/54982#comment:2>
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