[MacPorts] #58712: macports-clangs > 6.0 are missing atomic builtins on i386

[MacPorts]

#58712: macports-clangs > 6.0 are missing atomic builtins on i386
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  Reporter:  devernay                            |      Owner:  kencu
      Type:  defect                              |     Status:  assigned
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  clang-7.0 clang-8.0 clang-9.0       |
  clang-10 clang-devel                           |
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Comment (by ken-cunningham-webuse):

 In [changeset:"c53a09036eb6c71a52055965b4d300441f22da5a/macports-ports"
 c53a09036eb6c71a52055965b4d300441f22da5a/macports-ports] (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="c53a09036eb6c71a52055965b4d300441f22da5a"
 clang-7.0: allow compiler-rt to build atomic builtins

 these were previously on by default. We need atomics for
 32bit atomic support. 64bit atomics are supported by
 the compiler/processor but 32bit are not.

 see: https://trac.macports.org/ticket/58712
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/58712#comment:17>
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