[MacPorts] #64178: python310 @3.10.0_3: cannot build on MacOS 10.5 Leopard

[MacPorts]

#64178: python310 @3.10.0_3: cannot build on MacOS 10.5 Leopard
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  Reporter:  khepler    |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.7.1
Resolution:             |   Keywords:  leopard haspatch
      Port:  python310  |
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Comment (by evanmiller):

 @kencu I'm experimenting with {{{--enable-sjlj-exceptions}}} to see if
 setjmp/longjmp works any better than Dwarf2 exceptions. The run-times
 aren't compatible, but I'm hoping it might be a viable fallback option.

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Ticket URL: <https://trac.macports.org/ticket/64178#comment:7>
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