[MacPorts] #45044: Add "xctool" to ports

[MacPorts]

#45044: Add "xctool" to ports
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  Reporter:  nyriox@…  |      Owner:  ryandesign@…
      Type:  request   |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  xctool    |
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Comment (by nyriox@…):

 I've found some difficulty building it manually myself.  If you check the
 Travis-CI page link on the "Build | Passing" image you can find a list of
 commands used in building.

 Some dependencies are not in MacPorts, so perhaps those need to be added
 first?

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Ticket URL: <https://trac.macports.org/ticket/45044#comment:3>
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