[MacPorts] #64644: DiffPDF fails to build for ppc on 10.5.8

[MacPorts]

#64644: DiffPDF fails to build for ppc on 10.5.8
---------------------------+------------------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.1
Resolution:                |   Keywords:  powerpc, leopard
      Port:  DiffPDF       |
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Comment (by evanmiller):

 It looks like poppler-qt4 expects C++11. Adding {{{compiler.cxx_standard
 2011}}} will get past this error, but I see some other errors when QT4
 actually tries to bundle the application.

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Ticket URL: <https://trac.macports.org/ticket/64644#comment:1>
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