@section @code{pselect}
@findex pselect
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/pselect.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/pselect.html}
Gnulib module: ---
Portability problems fixed by Gnulib:
@itemize
+@item
+This function is missing on some platforms:
+OpenBSD 3.8, AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw, Interix 3.5, BeOS.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
-OpenBSD 3.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw, Interix 3.5, BeOS.
+When the @var{sigmask} argument is nonnull on platforms that do not
+natively support this function, race conditions are possible when its
+gnulib implementation temporarily modifies the signal mask, and the
+behavior is unspecified in a multi-threaded process.
@end itemize