[MacPorts] #64732: barrier @2.4.0: error: expected unqualified-id before '=' token

[MacPorts]

#64732: barrier @2.4.0: error: expected unqualified-id before '=' token
-------------------------+-------------------------------------------------
  Reporter:              |      Owner:  ryanakca
  barracuda156           |
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:  powerpc, snowleopard, rosetta,
      Port:  barrier     |  leopard
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Comment (by barracuda156):

 Replying to [comment:1 ryandesign]:
 > According to the barrier web page, barrier 2.4.0 requires macOS 10.12 or
 later for the GUI though the CLI portion should be usable on some earlier
 versions. The port currently doesn't build on 10.11 or earlier.

 Yeah, the task is to build it without GUI at least.

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Ticket URL: <https://trac.macports.org/ticket/64732#comment:2>
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