[MacPorts] #58762: (10.6.8 - libcxx-5.0.1) build libcxx failed

[MacPorts]

#58762: (10.6.8 - libcxx-5.0.1) build libcxx failed
----------------------+----------------------
  Reporter:  mrkapqa  |      Owner:  jeremyhu
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  libcxx   |
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Comment (by kencu):

 I don't believe anyone ever tried to build `libcxx` with `clang-3.3`. I
 would not expect that to be successful. That is most likely your problem
 here. I would just go with the defaults, as they seem to work.

 If you're following LibcxxOnOlderSystems and running into trouble, please
 post a ticket with exactly where things went wrong. Some compilers have
 been deleted, and I might need to tweak those instructions again.

 During bootstrapping `10.6.8` with LibcxxOnOlderSystems, you build
 `clang-3.4` with the system tools, and then use that `clang-3.4` to build
 an initial version of `libcxx``. Then you build `clang-3.4` again against
 libc++ using the first version of `clang-3.4`, then build `clang-3.7` with
 the new version of `clang-3.4`, then build `clang-5.0` with `clang-3.7`.

 And then, you build `libcxx` again with `clang-5.0` to get the fully
 `thread_local` supporting `libc++` OS we have all come to love. Once you
 are there, you can build `clang-8.0` (and newer, if we remain interested)!

-- 
Ticket URL: <https://trac.macports.org/ticket/58762#comment:2>
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