[MacPorts] #60287: boost @1.71.0 does not build: clang: error: unknown argument: '-fcoalesce-templates'

[MacPorts]

#60287: boost @1.71.0 does not build: clang: error: unknown argument: '-fcoalesce-
templates'
-------------------------+--------------------
  Reporter:  i0ntempest  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:  boost       |
-------------------------+--------------------

Comment (by i0ntempest):

 This might be related: https://github.com/zcash/zcash/issues/4333

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Ticket URL: <https://trac.macports.org/ticket/60287#comment:1>
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