its only purpose was for use on non-BSD systems that implement sysv
semantics for signal() by default.
#define SIGSTKSZ 8192
#endif
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-void (*bsd_signal(int, void (*)(int)))(int);
-#endif
-
#ifdef _BSD_SOURCE
typedef void (*sig_t)(int);
#endif
#ifdef _GNU_SOURCE
typedef void (*sighandler_t)(int);
+void (*bsd_signal(int, void (*)(int)))(int);
int sigisemptyset(const sigset_t *);
#define SA_NOMASK SA_NODEFER
#define SA_ONESHOT SA_RESETHAND