[MacPorts] #70675: gh: Error: Failed to destroot gh: dyld: Symbol not found: _exit

[MacPorts]

#70675: gh:  Error: Failed to destroot gh: dyld: Symbol not found: _exit
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  Reporter:  RobK88             |      Owner:  (none)
      Type:  defect             |     Status:  new
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.10.1
Resolution:                     |   Keywords:  elcapitan mtnlion
      Port:  gh legacy-support  |
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Comment (by fhgwright):

 I'll take a look at it, though it's bizarre that `legacy-support` would be
 relevant for something as basic as `_exit`.

 At least `gh` has minimal dependencies, so it shouldn't be a big hassle to
 reproduce.

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Ticket URL: <https://trac.macports.org/ticket/70675#comment:4>
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