[MacPorts] #62773: libgcc10 @10.3.0: failed to build from source on Big Sur 11.3

[MacPorts]

#62773: libgcc10 @10.3.0: failed to build from source on Big Sur 11.3
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  Reporter:  ferdy     |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.4
Resolution:            |   Keywords:
      Port:  libgcc10  |
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Comment (by jmroot):

 See also #62775.

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Ticket URL: <https://trac.macports.org/ticket/62773#comment:2>
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