--- gcc/objc/Object.h	2018/04/24 18:10:17	1.1.1.2
+++ gcc/objc/Object.h	2018/04/24 18:20:17	1.1.1.4
@@ -1,5 +1,5 @@
 /* Interface for the Object class for Objective-C.
-   Copyright (C) 1993 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -61,6 +61,7 @@ the Free Software Foundation, 675 Mass A
 - self;
 - (unsigned int)hash;
 - (BOOL)isEqual:anObject;
+- (int)compare:anotherObject;
 
         /* Testing object type */
 - (BOOL)isMetaClass;
@@ -92,8 +93,8 @@ the Free Software Foundation, 675 Mass A
 - perform:(SEL)aSel with:anObject1 with:anObject2;
 
         /* Forwarding */
-- forward:(SEL)aSel :(arglist_t)argFrame;
-- performv:(SEL)aSel :(arglist_t)argFrame;
+- (retval_t)forward:(SEL)aSel :(arglist_t)argFrame;
+- (retval_t)performv:(SEL)aSel :(arglist_t)argFrame;
 
         /* Posing */
 + poseAs:(Class*)aClassObject;
@@ -102,6 +103,7 @@ the Free Software Foundation, 675 Mass A
         /* Enforcing intentions */
 - subclassResponsibility:(SEL)aSel;
 - notImplemented:(SEL)aSel;
+- shouldNotImplement:(SEL)aSel;
 
         /* Error handling */
 - doesNotRecognize:(SEL)aSel;