[MacPorts] #67003: qpdf @11.2.0_0+gnutls: fatal error: 'string_view' file not found

[MacPorts]

#67003: qpdf @11.2.0_0+gnutls: fatal error: 'string_view' file not found
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  Reporter:  macdeport  |      Owner:  Schamschula
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.8.1
Resolution:             |   Keywords:  yosemite
      Port:  qpdf       |
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Comment (by Schamschula):

 Perhaps Yosemite needs to use newer version of {{{clang}}}, as
 {{{string_view.h}}} is provided by {{{clang}}}.

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Ticket URL: <https://trac.macports.org/ticket/67003#comment:2>
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