[MacPorts] #64200: par2 @0.8.1+universal: Undefined symbols for architecture i386: ___atomic_compare_exchange ___atomic_load

[MacPorts]

#64200: par2 @0.8.1+universal: Undefined symbols for architecture i386:
___atomic_compare_exchange ___atomic_load
---------------------+----------------------
  Reporter:  RobK88  |      Owner:  (none)
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.7.1
Resolution:          |   Keywords:  lion
      Port:  par2    |
---------------------+----------------------

Comment (by RobK88):

 Thanks Ken.  I will try building par2 +universal using clang 7.0.

 FYI -- there is an open ticket on the missing atomic builtins in clang-7.0
 and greater for i386.  It looks like kencu fixed Clang-7.0 leaving the
 newer clangs still missing the atomic builtins.  See
 https://trac.macports.org/ticket/58712

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Ticket URL: <https://trac.macports.org/ticket/64200#comment:8>
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