"Iain Buclaw via D.gnu" <d.gnu@puremagic.com> writes:

> On 5 June 2015 at 08:40, Dan Olson via D.gnu <d.gnu@puremagic.com>

> wrote:
>>
>> Sorry for a long chain on OSX. But one last unresolved symbol from
> make
>> check-d: "_d_osx_image_init". Is it just a placeholder or is it
> hidden
>> somewhere. Does gdc still need the code to set setup gc scanning?
> How
>> is TLS on OSX? - if not ready, would emutls work?
>> --
>> Dan
>

> I hope I'm not shying you away by saying, this is what someone needs
> to find out.
>
> I'd first suggest to build gcc only and test what is outputted. Use a
> test program such as __thread int tls; and a main program that sets
> it's value to 0xdeadbeef then build with -S and check if the output
> shows calls to emutls like functions.
>
> GDC already has GC support for emutls, so the interesting part is if
> GCC does native tls on osx.

GCC with vanilla configure is generating emutls calls for OSX.