[MacPorts] #45561: libgcc45 install fails on build -- command execution failure

[MacPorts]

#45561: libgcc45 install fails on build -- command execution failure
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  Reporter:  gentry.e@…  |      Owner:  mww@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.2
Resolution:              |   Keywords:
      Port:  libgcc45    |
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Comment (by mf2k@…):

 This is not surprising given that gcc 4.7 and below do not build on
 Yosemite.

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Ticket URL: <https://trac.macports.org/ticket/45561#comment:3>
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