[MacPorts] #57875: port:poppler shouldn't require C++14?!

[MacPorts]

#57875: port:poppler shouldn't require C++14?!
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  Reporter:  RJVB     |      Owner:  dbevans
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  poppler  |
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Comment (by sharris40):

 Doing that worries me a little. Upstream didn't seem to point out the
 reason for C++14 source in the documentation, unless I missed something. I
 had to search around to figure out why they were requiring it. If they
 aren't communicating those changes very well, the port may need to start
 playing keep-up. It might be better to pin Poppler's version for older
 platforms if further breakage happens.

 It's also worth pointing out that 0.73.0 renamed one of the options the
 portfile sets to the much more blatant "ENABLE_UNSTABLE_API_ABI_HEADERS",
 which sounds to me like they're planning on more major breakages (such as
 the one that broke texlive-bin until they switched back to the bundled
 version).

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Ticket URL: <https://trac.macports.org/ticket/57875#comment:5>
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