[MacPorts] #65994: gflags tries to use gcc-4.0 on 10.5.8 and fails direly

[MacPorts]

#65994: gflags tries to use gcc-4.0 on 10.5.8 and fails direly
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  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  powerpc, leopard
      Port:  gflags        |
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Comment (by barracuda156):

 This is just for the record. I will submit a PR to fix it.

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Ticket URL: <https://trac.macports.org/ticket/65994#comment:1>
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