int __libc_current_sigrtmin(void);
int __libc_current_sigrtmax(void);
#define SIGRTMIN (__libc_current_sigrtmin())
#define SIGRTMAX (__libc_current_sigrtmax())
int __libc_current_sigrtmin(void);
int __libc_current_sigrtmax(void);
#define SIGRTMIN (__libc_current_sigrtmin())
#define SIGRTMAX (__libc_current_sigrtmax())
int sigtimedwait(const sigset_t *, siginfo_t *, const struct timespec *);
int sigqueue(pid_t, int, const union sigval);
int sigtimedwait(const sigset_t *, siginfo_t *, const struct timespec *);
int sigqueue(pid_t, int, const union sigval);
-int siginterrupt(int, int);
+int pthread_sigmask(int, const sigset_t *, sigset_t *);
+int pthread_kill(pthread_t, int);