> On Oct 9, 2016, at 09:47, Jack Howarth <howarth.at.macpo...@gmail.com> wrote:
> 
> On Sun, Oct 9, 2016 at 3:53 AM, Jeremy Huddleston Sequoia
> <jerem...@apple.com> wrote:
>> thread_local support was added in OS X 10.9 (along with __cxa_thread_atexit 
>> being added to Libc as part of that support).  As long as your minimum 
>> deployment target is 10.9, you should be fine.  The issue is that you're on 
>> 10.6, so you don't have __cxa_thread_atexit.
>> 
>> There is active conversation right now about adding a fallback 
>> implementation of __cxa_thread_atexit directly into libcxxabi.  See 
>> https://reviews.llvm.org/D21803 as that might be quite useful for your 
>> needs.  If so, provide a patch to libcxxabi that incorporates it, and I'll 
>> get it in.
> 
> On the topic of thread local support, the failures in the guile 2.0.x
> test suite should be looked at...
> 
> https://trac.macports.org/ticket/52556
> 
> to determine if Apple's thread-local-storage implementation is buggy
> as upstream guile claims.

Radar?

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