pthread_create oddity

[Andrei Alexandrescu via Digitalmars-d]

I ran into an oddity of pthread_create, see 
https://github.com/D-Programming-Language/druntime/pull/1340. It appears 
that if stack size is not explicitly set, the 32-bit version of 
pthread_create fails. That's happening at least on Ubuntu64 under VMWare 
hosted on Linux.

Unrelated: what's the deal with the build fail by CyberShadow/DAutoTest?

Andrei