[MacPorts] #56309: gpsd: enhance to avoid conflict with mach policy_t type via forthcoming Boost 1.67.0

[MacPorts]

#56309: gpsd: enhance to avoid conflict with mach policy_t type via forthcoming
Boost 1.67.0
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  Reporter:  michaelld    |      Owner:  ryandesign
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  gpsd, boost  |
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Changes (by michaelld):

 * owner:  (none) => ryandesign
 * status:  new => assigned


Comment:

 Please note that this issue is really just with any OS using the Mach
 kernel, so it likely doesn't impact Linux. That said, I think it's wise to
 fix such type names to be unique for the project, and not something that
 could easily conflict with type names outside the project.

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Ticket URL: <https://trac.macports.org/ticket/56309#comment:1>
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