[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):

 I can confirm that `par2 +universal` builds just fine using clang-7.0 on
 Lion:

 {{{
 bash-3.2$ port installed par2
 The following ports are currently installed:
   par2 @0.4_4+universal
   par2 @0.8.1_0+universal (active)
 bash-3.2$
 }}}

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Ticket URL: <https://trac.macports.org/ticket/64200#comment:9>
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