[MacPorts] #50845: libunwind: fails to find 'bits/c++config.h' on 10.5/PPC

[MacPorts]

#50845: libunwind: fails to find 'bits/c++config.h' on 10.5/PPC
------------------------+----------------------
  Reporter:  mojca      |      Owner:  jeremyhu
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  leopard
      Port:  libunwind  |
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Comment (by mascondante):

 Per https://trac.macports.org/wiki/LibcxxOnOlderSystems#Leopardppc I stall
 here.
 My specific log (should it help) can be found here:
 https://ghostbin.com/paste/gpxuz
 My configuration: https://ghostbin.com/paste/nd557

 Hoping to get up to C++ 11. The older systems file (unrelated I realize)
 seems to show it's doable. Hoping some love for the last of the PPC
 generation continues to be shown as you folks have been so fabulously
 spearheading so far.

 Thank you.

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Ticket URL: <https://trac.macports.org/ticket/50845#comment:7>
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