>>>>> On Thu, 19 May 2016 10:36:57 +0200,
        Martin Husemann <mar...@duskware.de> said:

>> Adding real implementation (instead of the ENOSYS stub) is desired,
>> of course...

> In this case: is it even possible in a portable way for all of our
> architectures?

Yes.
Easiest way is to call a locking system call always, in the case of
PTHREAD_PROCESS_SHARED.
-- 
soda

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