[MacPorts] #65716: gramps: Failed to destroot gramps: app.executable gramps does not exist

[MacPorts]

#65716: gramps: Failed to destroot gramps: app.executable gramps does not exist
-------------------------+----------------------
  Reporter:  ryandesign  |      Owner:  mascguy
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.2
Resolution:              |   Keywords:
      Port:  gramps      |
-------------------------+----------------------

Comment (by mascguy):

 Replying to [comment:2 ryandesign]:
 > The question is: does that symlink exist when the app portgroup is
 looking for it? I think it does not. What creates the symlink? I think
 it's the post-destroot block created by the python portgroup. The problem
 is that post-destroot blocks run in the order in which they're created.
 The app portgroup's post-destroot block is created the moment the app
 portgroup is included, so it runs first. The python portgroup's post-
 destroot block is created the moment `python.versions` is set, which is
 after the app portgroup is included.

 Ideally the app pg should use a callback, to delay such setup until after
 previous inclusions. Are you aware of any ports/scenarios that might be
 problematic, if we were to go that route?

-- 
Ticket URL: <https://trac.macports.org/ticket/65716#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS