#define SIG_DFL ((void*)0)
#define SIG_IGN ((void*)1)

struct sigaction;

void	runtime·sigpanic(void);
void	runtime·sigaltstack(Sigaltstack*, Sigaltstack*);
void	runtime·sigaction(int32, struct sigaction*, struct sigaction*);
void	runtime·setitimerval(int32, Itimerval*, Itimerval*);
void	runtime·setitimer(int32, Itimerval*, Itimerval*);

void	runtime·raisesigpipe(void);