--- gcc/objc/Object.h	2018/04/24 18:10:17	1.1.1.2
+++ gcc/objc/Object.h	2018/04/24 18:13:42	1.1.1.3
@@ -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;
@@ -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;