[MacPorts] #73371: selfupdate to 2.11.6 fails with symbol(s) not found on OS X 10.7.5

[MacPorts]

#73371: selfupdate to 2.11.6 fails with symbol(s) not found on OS X 10.7.5
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  Reporter:  dkav    |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  base    |    Version:  2.11.6
Resolution:          |   Keywords:
      Port:          |
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Comment (by dkav):

 Apple clang version 4.0 (tags/Apple/clang-421.0.57) (based on LLVM 3.1svn)
 Target: x86_64-apple-darwin11.4.2
 Thread model: posix

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Ticket URL: <https://trac.macports.org/ticket/73371#comment:2>
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