[MacPorts] #73870: 'sudo port -vst install' crashes with SIGSEGV

[MacPorts]

#73870: 'sudo port -vst install' crashes with SIGSEGV
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  Reporter:  aeiouaeiouaeiouaeiouaeiouaeiou  |      Owner:  (none)
      Type:  defect                          |     Status:  new
  Priority:  Normal                          |  Milestone:
 Component:  base                            |    Version:  2.12.99
Resolution:                                  |   Keywords:
      Port:                                  |
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Comment (by jmroot):

 If you can't get line numbers in the backtrace, an alternative would be to
 add some debug printfs to pinpoint where the crash is happening.

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Ticket URL: <https://trac.macports.org/ticket/73870#comment:18>
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