[MacPorts] #55748: rsgislib @2.1.20140825_3: build failure, update problems with Boost

[MacPorts]

#55748: rsgislib @2.1.20140825_3: build failure, update problems with Boost
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  Reporter:  ForTozs   |      Owner:  Veence
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.4.2
Resolution:            |   Keywords:  haspatch
      Port:  rsgislib  |
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Comment (by ForTozs):

 Thanks so much Ryan. It is extremely helpful to see what you did.
 Hopefully, I can do a better job fixing similar issues in the future and
 help give back to the community. Unfortunately, I am getting the same
 error (the second one) after cleaning and patching. This is helpful
 though. At least now I know it is likely specific to my system.

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Ticket URL: <https://trac.macports.org/ticket/55748#comment:2>
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