[MacPorts] #47025: poppler: add Qt5 subport and optional test support.

[MacPorts]

#47025: poppler: add Qt5 subport and optional test support.
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  Reporter:  rjvbertin@…  |      Owner:  devans@…
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  poppler      |
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Comment (by rjvbertin@…):

 Replying to [comment:13 devans@…]:

 > Yes, I was talking about the basic poppler build using --enable-gtk-
 tests.  These definitely use/require gtk3 (see configure.ac for details).

 I'd hope so :)
 And I didn't touch that option. I just thought it could be useful to do
 the testing, optionally.

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Ticket URL: <https://trac.macports.org/ticket/47025#comment:15>
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