diff --git a/ChangeLog b/ChangeLog
index 9cca25f39e..bb739c05d2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Dec  6 14:13:59 2002  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* numeric.c (num_cmp): define Numeric#<=>, remove Numeric#==.
+
 Tue Dec  3 01:48:06 2002  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* eval.c (backtrace): should ignore line 0 frame.
diff --git a/numeric.c b/numeric.c
index 912f9dd30b..8bf48aa232 100644
--- a/numeric.c
+++ b/numeric.c
@@ -422,6 +422,14 @@ num_eql(x, y)
     return rb_equal(x, y);
 }
 
+static VALUE
+num_cmp(x, y)
+    VALUE x, y;
+{
+    if (x == y) return INT2FIX(0);
+    return Qnil;
+}
+
 static VALUE
 num_equal(x, y)
     VALUE x, y;
@@ -1559,8 +1567,8 @@ Init_Numeric()
 
     rb_define_method(rb_cNumeric, "+@", num_uplus, 0);
     rb_define_method(rb_cNumeric, "-@", num_uminus, 0);
-    rb_define_method(rb_cNumeric, "==", num_equal, 1);
     rb_define_method(rb_cNumeric, "===", num_equal, 1);
+    rb_define_method(rb_cNumeric, "<=>", num_cmp, 1);
     rb_define_method(rb_cNumeric, "eql?", num_eql, 1);
     rb_define_method(rb_cNumeric, "divmod", num_divmod, 1);
     rb_define_method(rb_cNumeric, "modulo", num_modulo, 1);