[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 RobK88):

 Second time is a charm.  libgcc12 was built successfully this time on my
 old Mac Pro running Lion.

 I still do not know why Macporrs still insists building this port from
 source.  See my Macports.conf.
 If there is a way to get Macports to download and install the prebuilt
 binary builds for at least the compilers that would be great!

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Ticket URL: <https://trac.macports.org/ticket/65543#comment:6>
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