[MacPorts] #39886: Make depends_run yelp a variant for gnome apps?

[MacPorts]

#39886: Make depends_run yelp a variant for gnome apps?
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  Reporter:  c.herbig@…   |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  yelp         |
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Comment (by egall@…):

 Replying to [comment:3 c.herbig@…]:
 > Sorry, I looked again, it gives you a popup stating that yelp could not
 be found.

 Could we add some text to the popup's message telling users to re-install
 the port they're using with the `+yelp` variant if they want its help
 button to work?

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Ticket URL: <https://trac.macports.org/ticket/39886#comment:4>
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