#ifdef _GNU_SOURCE
#define __siginfo siginfo
+#define __ucontext ucontext
#endif
#define __NEED_size_t
int sigisemptyset(const sigset_t *);
#define SA_NOMASK SA_NODEFER
#define SA_ONESHOT SA_RESETHAND
+#define NSIG _NSIG
#endif
#include <bits/signal.h>