@item
This function is missing on some platforms:
Solaris 2.5.1, mingw, Interix 3.5, BeOS.
-
-@item
-POSIX recommends using @code{sigaction} with SA_NODEFER instead.
@end itemize
+
+Note: POSIX recommends using @code{sigaction} with SA_RESTART instead of
+@code{siginterrupt (sig, 0)}.