[MacPorts] #52414: libarchive port fails problem with -pthread argument to clang

[MacPorts]

#52414: libarchive port fails problem with -pthread argument to clang
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  Reporter:  JustinCB@…  |      Owner:  toby@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.4
Resolution:              |   Keywords:
      Port:  libarchive  |
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Comment (by toby@…):

 Doesn't look like this has anything to do with pthreads. That's just a
 compilation warning.

 Looks more like something sketchy going on with linking.

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Ticket URL: <https://trac.macports.org/ticket/52414#comment:6>
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