9.781 pthread_mutex_unlock

POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/pthread_mutex_unlock.html

Gnulib module: —

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

• This function is missing on some platforms: Minix 3.1.8, HP-UX 11, IRIX 5.3, Solaris 2.4, mingw, MSVC 9, BeOS.