--- Libc/Libc-583/sys/sem_open.c
+++ Libc/Libc-320/sys/sem_open.c
@@ -1,7 +1,9 @@
 /*
- * Copyright (c) 1999, 2009 Apple Inc. All rights reserved.
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
+ * 
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
@@ -21,12 +23,11 @@
  * @APPLE_LICENSE_HEADER_END@
  */
 
-#include <sys/cdefs.h>
-
 #ifdef __APPLE_PR3375657_HACK__
 
 #include <stdio.h>
 #include <semaphore.h>
+#include <sys/syscall.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <alloca.h>
@@ -34,7 +35,6 @@
 #include <string.h>
 
 __private_extern__ int _sem_match(const char *name);
-extern sem_t *__sem_open(const char *, int, int, unsigned int);
 
 sem_t *
 sem_open (const char *name, int flags, ...)
@@ -64,7 +64,7 @@
 	value = va_arg(ap, unsigned int);
 	va_end(ap);
 
-	return __sem_open(name, flags, mode, value);
+	return syscall (SYS_sem_open, name, flags, mode, value);
 }
 
 #endif /* __APPLE_PR3375657_HACK__ */