[MacPorts] #65543: libgcc12 fails to build on Lion 10.7.5

[MacPorts]

#65543: libgcc12 fails to build on Lion 10.7.5
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  Reporter:  RobK88    |      Owner:  cjones051073
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.2
Resolution:            |   Keywords:  lion
      Port:  libgcc12  |
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Comment (by cjones051073):

 builds fine in the build bots

 https://ports.macports.org/port/libgcc12/details/

 just curious, but as you are using the standard prefix and variants, why
 are you building from source at all, and not using the binary tarballs ?

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Ticket URL: <https://trac.macports.org/ticket/65543#comment:3>
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