[MacPorts] #62436: gti @1.6.1-universal: implicit declaration of function 'usleep'

[MacPorts]

#62436: gti @1.6.1-universal: implicit declaration of function 'usleep'
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  Reporter:  zman0900  |      Owner:  g5pw
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.4
Resolution:            |   Keywords:
      Port:  gti       |
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Comment (by jmroot):

 It's setting `_POSIX_C_SOURCE` to `199009L`, but for `usleep` to be
 available, it has to be at least `199506L`.

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Ticket URL: <https://trac.macports.org/ticket/62436#comment:1>
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