[MacPorts] #60506: Can't install grass7

[MacPorts]

#60506: Can't install grass7
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  Reporter:  dershow  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  grass7   |
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Comment (by dershow):

 I needed a few minor changes from what you suggested.  First, I had to
 create /opt/local/share/grass78 and /opt/local/share/grass78/lib as they
 didn't exist.  The path to copy from was dist.x86_64-apple-darwin19.5.0 (
 not 19.4....I assume because I'm on 10.15).
 Is this hardcoded somewhere and the cause of the problem?!?

 I then was able to build, remove the share directory and install
 successfully!

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Ticket URL: <https://trac.macports.org/ticket/60506#comment:29>
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