[MacPorts] #71770: mlt @7.24.0_0+qt6 build failure

[MacPorts]

#71770: mlt @7.24.0_0+qt6 build failure
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  Reporter:  amadeus24  |      Owner:  ddennedy
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.10.5
Resolution:             |   Keywords:
      Port:  mlt        |
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Comment (by ddennedy):

 Upstream does not support building against multiple versions of FFmpeg
 installed to the same prefix.

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Ticket URL: <https://trac.macports.org/ticket/71770#comment:10>
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