[MacPorts] #70850: qt5-qtwebengine @5.15.16_2 : converts to incompatible function type on sequoia

[MacPorts]

#70850: qt5-qtwebengine @5.15.16_2 : converts to incompatible function type on
sequoia
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  Reporter:  m0nt0            |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.10.1
Resolution:                   |   Keywords:  sequoia
      Port:  qt5-qtwebengine  |
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Comment (by ryandesign):

 Your proposed fix silences the warnings. Instead, can we fix the problems
 the warnings are pointing out? For example, the harfbuzz problem is fixed
 by this upstream commit I think:

 https://github.com/harfbuzz/harfbuzz/commit/d88269c827895b38f99f7cf741fa60210d4d5169

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Ticket URL: <https://trac.macports.org/ticket/70850#comment:6>
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