[MacPorts] #60476: grass7-7.8.3_0 update fails

[MacPorts]

#60476: grass7-7.8.3_0 update fails
---------------------------+--------------------
 Reporter:  gjolleyrogers  |      Owner:  (none)
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  ports          |    Version:  2.6.2
 Keywords:                 |       Port:  grass7
---------------------------+--------------------
 Routine update fails grass7-7.8.3_0+postgresql12+python38.darwin_18.x86_64

 Sorry to be an idiot,  previously correcting permissions on build
 directories worked for me.

 Many thanks
 G

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Ticket URL: <https://trac.macports.org/ticket/60476>
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