--- Net2/sys/ptrace.h	2018/04/24 18:03:58	1.1.1.1
+++ Net2/sys/ptrace.h	2018/04/24 18:16:14	1.1.1.2
@@ -30,11 +30,12 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)ptrace.h	7.4 (Berkeley) 2/22/91
+ *	from: @(#)ptrace.h	7.4 (Berkeley) 2/22/91
+ *	ptrace.h,v 1.3 1993/05/20 16:22:53 cgd Exp
  */
 
-#ifndef	_PTRACE_H_
-#define	_PTRACE_H_
+#ifndef _SYS_PTRACE_H_
+#define _SYS_PTRACE_H_
 
 #define	PT_TRACE_ME	0	/* child declares it's being traced */
 #define	PT_READ_I	1	/* read word in child's I space */
@@ -57,4 +58,4 @@ __END_DECLS
 
 #endif /* !KERNEL */
 
-#endif	/* !_PTRACE_H_ */
+#endif /* !_SYS_PTRACE_H_ */