@section @code{sigaction}
@findex sigaction
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/sigaction.html}
+POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/sigaction.html}
-Gnulib module: ---
+Gnulib module: sigaction
Portability problems fixed by Gnulib:
@itemize
+@item
+This function is missing on some platforms:
+mingw.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
+POSIX recommends that when specifying SA_RESETHAND, SA_NODEFER must
+also be specified.
+
+@item
+Support for SA_ONSTACK is missing on some platforms:
+mingw, cygwin.
+
+@item
+Support for SA_SIGINFO is missing on some platforms:
+mingw, Interix 3.5.
+
+@item
+Support for SIGCHLD, and thus for SA_NOCLDSTOP and SA_NOCLDWAIT, is
+missing on some platforms:
+mingw.
+
+@item
+Support for SA_RESTART is missing on some platforms:
mingw.
+
+@item
+In spite of having SA_SIGACTION, struct sigaction lacks the
+sa_sigaction member on some platforms:
+Irix 5.3.
+
@item
The symbolic value @code{SIG_IGN} for the @code{SIGCHLD} signal is equivalent
to a signal handler