[MacPorts] #57394: pdfpc @4.2.1: No package 'gstreamer-audio-1.0' found

[MacPorts]

#57394: pdfpc @4.2.1: No package 'gstreamer-audio-1.0' found
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  Reporter:  ryandesign  |      Owner:  maehne
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  pdfpc       |
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Comment (by maehne):

 I think that I have found all missing dependencies by looking at the
 {{{CMakeLists.txt}}} of {{{pdfpc}}} more closely. {{{fix-pdfpc-x11
 -variant-Portfile.diff​}}} contains the necessary changes to the
 {{{Portfile}}}. Could you please apply them?

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Ticket URL: <https://trac.macports.org/ticket/57394#comment:2>
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