[MacPorts] #43738: gnuplot: upgrade to 5.0

[MacPorts]

#43738: gnuplot: upgrade to 5.0
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  Reporter:  mojca@…  |      Owner:  mojca@…
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  haspatch
      Port:  gnuplot  |
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Comment (by mojca@…):

 Replying to [comment:17 devans@…]:
 > Yes, but this is a particularly complex package and the demos are an
 easy way to come up to speed.  However, there is nothing that
 > immediately tells you that there are demos or how to run them.  But I
 guess you could leave it up to the user to figure it out (as I did) and
 wait for the tickets to come in saying the demos are broken. :-)  I'll
 leave it up to you.

 What exactly would you write in the notes?

 I remember my first experience from windows. One runs the exe, uses
 File->Open and it opens at location where the program is installed, so one
 just needs to pick the folder `demo` and then `all.dem` (or any other file
 for that matter). But I don't know how to replicate that user experience
 on Mac lacking a standalone Gnuplot.app (which would require a tiny bit of
 Qt expertise to write a Qt gui with "built-in" "terminal" to resemble the
 behaviour in windows).

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Ticket URL: <https://trac.macports.org/ticket/43738#comment:20>
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