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#include <sys/signal.h>
#if NSIG <= 32
#define __SIGEMPTYSET 0
#define __SIGFILLSET 0xffffffff
#define __SIGADDSET(s, n) (*(s) |= 1 << ((n) - 1), 0)
#define __SIGDELSET(s, n) (*(s) &= ~(1 << ((n) - 1)), 0)
#define __SIGISMEMBER(s, n) ((*(s) & (1 << ((n) - 1))) != 0)
#else /* XXX Netbsd >= 1.3H */
#define __SIGEMPTYSET { 0, 0, 0, 0}
#define __SIGFILLSET { 0xffffffff, 0xffffffff, \
0xffffffff, 0xffffffff }
#define __SIGMASK(n) (1 << (((n) - 1) & 31))
#define __SIGWORD(n) (((n) - 1) >> 5)
#define __SIGADDSET(s, n) ((s)->__bits[__SIGWORD(n)] |= __SIGMASK(n))
#define __SIGDELSET(s, n) ((s)->__bits[__SIGWORD(n)] &= ~__SIGMASK(n))
#define __SIGISMEMBER(s, n) (((s)->__bits[__SIGWORD(n)] & __SIGMASK(n)) != 0)
#endif
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