[MacPorts] #71297: postgresql16 @16.4 fails test because of too long path name of socket

[MacPorts]

#71297: postgresql16 @16.4 fails test because of too long path name of socket
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  Reporter:  ballapete     |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.10.2
Resolution:                |   Keywords:
      Port:  postgresql16  |
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Comment (by ryandesign):

 Replying to [ticket:71297 ballapete]:
 > "_opt_local_var_macports_sources" is complete nonsense, echoing a
 standard.

 It's not complete nonsense; it's where the standard portfiles are located.
 MacPorts is also able to use portfiles located anywhere else.

 See #70539 for an idea to shorten the work paths.

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Ticket URL: <https://trac.macports.org/ticket/71297#comment:1>
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