On Tue, 16 Nov 1999 14:52:45 +0100 
 "Dr. Lex Wennmacher" <wennmach@geo.Uni-Koeln.DE> wrote:

 > In short:
 > #include <signal.h>
 > struct sigitimer {
 >         int sig;
 >         int itimer;
 > };
 > struct sigaction {
 >         void             (*sa_handler)(int);
 >         sigset_t         sa_mask;
 >         int              sa_flags;
 >         struct sigitimer *sa_st;
 > };

Please do not add anything to struct sigaction; it changes the ABI; you
still need a new system call.

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>