[MacPorts] #57137: xcode portgroup should set -derivedDataPath on Xcode versions that need it

[MacPorts]

#57137: xcode portgroup should set -derivedDataPath on Xcode versions that need it
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  Reporter:  ryandesign     |      Owner:  (none)
      Type:  enhancement    |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  xcode-1.0.tcl  |
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Comment (by ddrum2000):

 So I suspect I have the same problem when trying to build graphviz-gui.
 I'm running Mojave with Xcode 10. I have attached a log file.

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Ticket URL: <https://trac.macports.org/ticket/57137#comment:6>
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