--- Gnu-Mach/vm/memory_object.h	2020/09/02 04:36:57	1.1.1.1
+++ Gnu-Mach/vm/memory_object.h	2020/09/02 04:45:25	1.1.1.3
@@ -1,25 +1,25 @@
-/* 
+/*
  * Mach Operating System
  * Copyright (c) 1991 Carnegie Mellon University
  * All Rights Reserved.
- * 
+ *
  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
  * software, derivative works or modified versions, and any portions
  * thereof, and that both notices appear in supporting documentation.
- * 
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
+ *
  * Carnegie Mellon requests users of this software to return to
- * 
+ *
  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  *  School of Computer Science
  *  Carnegie Mellon University
  *  Pittsburgh PA 15213-3890
- * 
+ *
  * any improvements or extensions that they make and grant Carnegie the
  * rights to redistribute these changes.
  */
@@ -28,16 +28,12 @@
 #define	_VM_MEMORY_OBJECT_H_
 
 #include <mach/boolean.h>
+#include <ipc/ipc_types.h>
 
-/*
- *	We use "struct ipc_port *" instead of "ipc_port_t"
- *	to avoid include file circularities.
- */
-
-extern struct ipc_port *memory_manager_default_reference();
-extern boolean_t memory_manager_default_port();
-extern void memory_manager_default_init();
+extern ipc_port_t memory_manager_default_reference(void);
+extern boolean_t memory_manager_default_port(ipc_port_t);
+extern void memory_manager_default_init(void);
 
-extern struct ipc_port *memory_manager_default;
+extern ipc_port_t memory_manager_default;
 
-#endif	_VM_MEMORY_OBJECT_H_
+#endif	/* _VM_MEMORY_OBJECT_H_ */