2 @subsection @code{pthread_yield}
7 Portability problems fixed by Gnulib:
11 Portability problems not fixed by Gnulib:
14 This function is missing on some platforms:
15 Mac OS X 10.5, NetBSD 5.0, Minix 3.1.8, HP-UX 11, IRIX 6.5, Solaris 11.3, Cygwin 1.7.7, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.