[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):

 BTW, the other advice from upstream seems less palatable, perhaps -- to
 replace /usr/lib/libstdc++.dylib with the newer one from libgcc7 7.5.0. I
 can't see us being able to do the amount of testing that would be needed
 to see if that is a good idea.

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Ticket URL: <https://trac.macports.org/ticket/59832#comment:21>
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