[MacPorts] #57155: clang-3.7 build fails ld64-127 seg fault

[MacPorts]

#57155: clang-3.7 build fails ld64-127 seg fault
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 Reporter:  cheongi  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.5.3
 Keywords:           |       Port:
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 Following instructions per
 https://trac.macports.org/wiki/LibcxxOnOlderSystems

 clang-3.4 working
 clang-3.7 install falls over with seg fault

 previous builds used +universal, so have cleaned out that and default
 -universal.

 Could this be due to running multiple jobs??? -j8 defaulted somewhere
 (can't recall where I did that many years ago and can't find it at present
 to change to single job)

 tried building other versions of ld64 but they also fail.

 log attached.

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Ticket URL: <https://trac.macports.org/ticket/57155>
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