[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:  closed
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.2
Resolution:  fixed     |   Keywords:  lion
      Port:  libgcc12  |
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Comment (by RobK88):

 I agree.  None of the exceptions apply to me.

 Given my settings un macports.conf, Macports should be downloading and
 installing  binary packages for the vast majority of the ports.  But
 Macports wants to build from source every port.  There must be a setting
 that I am missing.

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Ticket URL: <https://trac.macports.org/ticket/65543#comment:9>
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