1#ifndef __sigset_t_defined
2#define __sigset_t_defined 1
3
4#include <bits/types/__sigset_t.h>
5
6/* A set of signals to be blocked, unblocked, or waited for. */
7typedef __sigset_t sigset_t;
8
9#endif
10

source code of include/x86_64-linux-gnu/bits/types/sigset_t.h