[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 jmroot):

 Replying to [comment:4 kencu]:
 > I assume the xcode PG's "destroot" phase runs some "build-then-install"
 logic in Xcode that might be hard to dissect...

 Note that there is a confirmed bug with the new build system in Xcode 10
 that causes problems with building and then destrooting separately, but
 not when doing both in one step. See
 [9cb3c083519503bb4b404fe57f19466a924523be/macports-ports] and
 [https://echelog.com/logs/browse/macports/1537912800 IRC logs of 26th-27th
 September] (starting around 22:40).

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Ticket URL: <https://trac.macports.org/ticket/57137#comment:9>
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