[MacPorts] #61635: calc-2.12.6.8 errors calling __builtin___memmove_chk when building with Big Sur/Xcode 12.2

[MacPorts]

#61635: calc-2.12.6.8 errors calling __builtin___memmove_chk when building with Big
Sur/Xcode 12.2
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  Reporter:  leuliett  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.4
Resolution:            |   Keywords:  Big Sur
      Port:            |
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Changes (by leuliett):

 * Attachment "main.log" added.

 calc/main.log

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Ticket URL: <https://trac.macports.org/ticket/61635>
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