[MacPorts] #61298: ffmpeg @4.3.1 +gpl2 +nonfree Build fails Undefined symbols for architecture x86_64: :info:build "_ff_butterflies_fixed_sse2" and more

[MacPorts]

#61298: ffmpeg @4.3.1 +gpl2 +nonfree Build fails Undefined symbols for architecture
x86_64: :info:build   "_ff_butterflies_fixed_sse2" and more
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  Reporter:  MeNdMont  |      Owner:  dbevans
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.3
Resolution:            |   Keywords:
      Port:  ffmpeg    |
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Comment (by kencu):

 Replying to [comment:8 MeNdMont]:
 > I'm on 10.15, does that make a difference?
 It might, I didn't try it on my 10.15 system yet -- but I suggest you try
 what I outlined, and see what happens for you.

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Ticket URL: <https://trac.macports.org/ticket/61298#comment:9>
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