[MacPorts] #59832: cmake 3.16.0: does not build on PPC Mac OS X 10.5.8, "Bus Error"

[MacPorts]

#59832: cmake 3.16.0: does not build on PPC Mac OS X 10.5.8, "Bus Error"
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  Reporter:  timishimuni  |      Owner:  michaelld
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.2
Resolution:               |   Keywords:  leopard
      Port:  cmake        |
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Comment (by kencu):

 Iain is not having much luck fixing libgcc so far, so I'll have to roll
 back gcc7 to 7.4.x.

 Chris is hoping we will split this off into different gcc7 versions for
 different systems, so there's that bit of headache to manage...which is
 mostly why I didn't fix this already.

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Ticket URL: <https://trac.macports.org/ticket/59832#comment:12>
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