[MacPorts] #64869: PDAL @2.3.99.1: fatal error: 'filesystem' file not found

[MacPorts]

#64869: PDAL @2.3.99.1: fatal error: 'filesystem' file not found
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  Reporter:  ryandesign  |      Owner:  Veence
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.2
Resolution:              |   Keywords:
      Port:  PDAL        |
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Comment (by Veence):

 Thanks a bunch Ryan.

 Indeed, I had a look and have no dependency on boost in any of the
 executable/libraries files produced by PDAL.

 So yes, I think the best way is to use 2017 as the minimum version of the
 compiler. Introducing an artificial dependency on boost doesn’t seem to me
 like a good idea, since I have no idea if the C++2017 <filesystem> and the
 boost one are equivalent.

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Ticket URL: <https://trac.macports.org/ticket/64869#comment:3>
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