extern "C" {
#endif
+#include <features.h>
+
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
#define SIG_HOLD ((void (*)(int)) 2)
-#ifndef SIG_BLOCK
#define SIG_BLOCK 0
#define SIG_UNBLOCK 1
#define SIG_SETMASK 2
-#endif
#define SI_ASYNCNL (-60)
#define SI_TKILL (-6)
int sigdelset(sigset_t *, int);
int sigismember(const sigset_t *, int);
-int sigprocmask(int, const sigset_t *, sigset_t *);
+int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict);
int sigsuspend(const sigset_t *);
-int sigaction(int, const struct sigaction *, struct sigaction *);
+int sigaction(int, const struct sigaction *__restrict, struct sigaction *__restrict);
int sigpending(sigset_t *);
-int sigwait(const sigset_t *, int *);
-int sigwaitinfo(const sigset_t *, siginfo_t *);
-int sigtimedwait(const sigset_t *, siginfo_t *, const struct timespec *);
+int sigwait(const sigset_t *__restrict, int *__restrict);
+int sigwaitinfo(const sigset_t *__restrict, siginfo_t *__restrict);
+int sigtimedwait(const sigset_t *__restrict, siginfo_t *__restrict, const struct timespec *__restrict);
int sigqueue(pid_t, int, const union sigval);
-int pthread_sigmask(int, const sigset_t *, sigset_t *);
+int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict);
int pthread_kill(pthread_t, int);
void psiginfo(const siginfo_t *, const char *);
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
int killpg(pid_t, int);
-int sigaltstack(const stack_t *, stack_t *);
+int sigaltstack(const stack_t *__restrict, stack_t *__restrict);
int sighold(int);
int sigignore(int);
int siginterrupt(int, int);