[MacPorts] #63443: ffmpeg-4.4_3+gpl2: build failures: libffi dylib version bump breaks core ports like LLVM

[MacPorts]

#63443: ffmpeg-4.4_3+gpl2: build failures: libffi dylib version bump breaks core
ports like LLVM
----------------------------+---------------------
  Reporter:  Tommaso93      |      Owner:  mascguy
      Type:  defect         |     Status:  closed
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.7.1
Resolution:  fixed          |   Keywords:
      Port:  ffmpeg libffi  |
----------------------------+---------------------

Comment (by mascguy):

 Great point, and perhaps that's enough to fix `ffmpeg`.

 But are you certain that we don't have a fair number of other ports, which
 opportunistically utilize `cctools` components?

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Ticket URL: <https://trac.macports.org/ticket/63443#comment:27>
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