[MacPorts] #57610: unison @2.51.2_1 (net): build fails in macOS Mojave (v10.14.1)

[MacPorts]

#57610: unison @2.51.2_1 (net): build fails in macOS Mojave (v10.14.1)
------------------------+--------------------
  Reporter:  vkemerlis  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.4
Resolution:             |   Keywords:
      Port:  unison     |
------------------------+--------------------

Comment (by MarcusCalhoun-Lopez):

 This looks like it might be a problem with you Xcode installation.
 {{{
 :info:build 2018-11-15 11:12:29.388 ibtoold[90042:4781377] [MT]
 DVTPlugInLoading: Failed to load code for plug-in
 com.apple.dt.IDE.IDEInterfaceBuilderAppleTVIntegration
 (/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/Library/Xcode/PrivatePlugIns/IDEInterfaceBuilderAppleTVIntegration.ideplugin),
 error = Error Domain=NSCocoaErrorDomain Code=3587
 "dlopen_preflight(/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/Library/Xcode/PrivatePlugIns/IDEInterfaceBuilderAppleTVIntegration.ideplugin/Contents/MacOS/IDEInterfaceBuilderAppleTVIntegration):
 Library not loaded:
 /Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator
 :info:build   Referenced from:
 /Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/Library/Xcode/PrivatePlugIns/IDEInterfaceBuilderAppleTVIntegration.ideplugin/Contents/MacOS/IDEInterfaceBuilderAppleTVIntegration
 :info:build   Reason: image not found"
 UserInfo={NSLocalizedFailureReason=The bundle is damaged or missing
 necessary resources., NSLocalizedRecoverySuggestion=Try reinstalling the
 bundle.,
 NSFilePath=/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/Library/Xcode/PrivatePlugIns/IDEInterfaceBuilderAppleTVIntegration.ideplugin/Contents/MacOS/IDEInterfaceBuilderAppleTVIntegration,
 NSDebugDescription=dlopen_preflight(/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/Library/Xcode/PrivatePlugIns/IDEInterfaceBuilderAppleTVIntegration.ideplugin/Contents/MacOS/IDEInterfaceBuilderAppleTVIntegration):
 Library not loaded:
 /Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator
 }}}

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Ticket URL: <https://trac.macports.org/ticket/57610#comment:1>
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