Charles-François Natali added the comment:

> On Linux, you can try to set the LD_PRELOAD environment variable as a
> workaround.
>
> LD_PRELOAD=libgcc_s.so.1 python bug.py
>
> You may need to specify the full path.

I don't think that'll work.
Despite its name, using LD_PRELOAD won't "preload" the library. It
will only be loaded upon dlopen(). It just makes sure that symbols
will be looked for in this library first, even before the libc.

> Because in python2.x it wasn't loaded at runtime.

Yes it was. As explained above, you can get the very same crash upon
pthread_exit().

> Alright ... would it be a very big hack to preload libgcc in the thread 
> module (at import
> time) ?

IMO yes, but if someone writes a patch, I won't oppose to it :-)

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<http://bugs.python.org/issue18748>
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