pthread_create
==============

POSIX specification:
 https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_create.html

Gnulib module: pthread-thread

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: Minix 3.1.8, mingw, MSVC 14. But the provided replacement is just a dummy on some of these platforms: Minix 3.1.8.

  * This function is only defined as an inline function on some platforms: HP-UX 11.11.

Portability problems not fixed by Gnulib:

  * On Linux/glibc platforms before the advent of NPTL in 2003, signals could only be sent to one particular thread.  In POSIX, signals are sent to the entire process and executed by any thread of the process that happens to have the particular signal currently unblocked.