@node sys/select.h
@section @file{sys/select.h}

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_select.h.html}

Gnulib module: sys_select

Portability problems fixed by Gnulib:
@itemize
@item
This header file is missing on some platforms:
HP-UX 11.11, NonStop Kernel, mingw, MSVC 14.
@item
This header file is not self-contained on some platforms: it requires
@code{<sys/types.h>} to be included first.
@item
This header file is not self-contained---it requires @code{<string.h>}
before @code{FD_ZERO} can be used---on some platforms:
AIX 7.1, Solaris 11.4.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@end itemize