[MacPorts] #68521: ffmpeg @4.4.4 cannot find zvbi: ERROR: zvbi-0.2 not found using pkg-config

[MacPorts]

#68521: ffmpeg @4.4.4 cannot find zvbi: ERROR: zvbi-0.2 not found using pkg-config
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  Reporter:  barracuda156  |      Owner:  mascguy
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.8.1
Resolution:                |   Keywords:  powerpc
      Port:  ffmpeg        |
---------------------------+----------------------

Comment (by mascguy):

 Sergey, it would be very helpful if you could attach the full `main.log`
 for these tickets. Please and thanks!

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Ticket URL: <https://trac.macports.org/ticket/68521#comment:2>
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