--- Libc/Libc-1725.40.4/stdlib/FreeBSD/exit.c
+++ Libc/Libc-583/stdlib/FreeBSD/exit.c
@@ -10,6 +10,10 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
@@ -27,53 +31,43 @@
  * SUCH DAMAGE.
  */
 
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wstrict-prototypes"
-
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)exit.c	8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdlib/exit.c,v 1.9 2007/01/09 00:28:09 imp Exp $");
+__FBSDID("$FreeBSD: src/lib/libc/stdlib/exit.c,v 1.7 2003/12/19 17:11:20 kan Exp $");
 
 #include "namespace.h"
 #include <stdlib.h>
 #include <unistd.h>
 #include "un-namespace.h"
+#include "atexit.h"
 
-#include "atexit.h"
-#include "libc_private.h"
-#include "stdio/FreeBSD/local.h" // for __cleanup
+void (*__cleanup)();
 
-#include <TargetConditionals.h>
-
-#if __APPLE__
-int __cleanup = 0;
-#else
-void (* CLEANUP_PTRAUTH __cleanup)(void);
-#endif // __APPLE__
-
-extern void __exit(int) __attribute__((noreturn));
-#if __has_feature(cxx_thread_local) || __has_feature(c_thread_local)
-extern void _tlv_exit();
-#endif // __has_feature(cxx_thread_local) || __has_feature(c_thread_local)
+/*
+ * This variable is zero until a process has created a thread.
+ * It is used to avoid calling locking functions in libc when they
+ * are not required. By default, libc is intended to be(come)
+ * thread-safe, but without a (significant) penalty to non-threaded
+ * processes.
+ */
+int	__isthreaded	= 0;
 
 /*
  * Exit, flushing stdio buffers if necessary.
  */
 void
-exit(int status)
+exit(status)
+	int status;
 {
-#if __has_feature(cxx_thread_local) || __has_feature(c_thread_local)
-	_tlv_exit(); // C++11 requires thread_local objects to be destroyed before global objects
-#endif // __has_feature(cxx_thread_local) || __has_feature(c_thread_local)
+	/* Ensure that the auto-initialization routine is linked in: */
+	extern int _thread_autoinit_dummy_decl;
+
+	_thread_autoinit_dummy_decl = 1;
+
 	__cxa_finalize(NULL);
 	if (__cleanup)
-#ifdef __APPLE__
-		_cleanup();
-#else
 		(*__cleanup)();
-#endif // __APPLE__
-	__exit(status);
+	_exit(status);
 }
-#pragma clang diagnostic pop