[MacPorts] #57883: libcxx @5.0.1_3: error: thread-local storage is unsupported for the current target

[MacPorts]

#57883: libcxx @5.0.1_3: error: thread-local storage is unsupported for the current
target
-------------------------+-------------------------
  Reporter:  ryandesign  |      Owner:  jeremyhu
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:  fixed       |   Keywords:  snowleopard
      Port:  libcxx      |
-------------------------+-------------------------

Comment (by ryandesign):

 Is there any way to backport the
 [changeset:5949e6264728ac7f74625c9eaf5b41d2852d07e6/macports-ports changes
 you made to clang-5.0 to support emulated tls] to clang-3.4, which doesn't
 require libcxx? If so, then libcxx could continue to build with clang-3.4
 which would break the dependency cycle.

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Ticket URL: <https://trac.macports.org/ticket/57883#comment:13>
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