diff --git a/ChangeLog b/ChangeLog
index e507be70d4..a4ebf8225c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Mon Jun  4 04:24:06 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* marshal.c: experimental test aborted.
+	* complex.c: ditto.
+	* rational.c: ditto.
+	* include/ruby/intern.h: ditto.
+
 Mon Jun  4 00:45:18 2012  Tanaka Akira  <akr@fsij.org>
 
 	* process.c (rb_spawn_process): fix for Windows.  not tested.
diff --git a/complex.c b/complex.c
index 6036ab72fd..1aae3b6ca8 100644
--- a/complex.c
+++ b/complex.c
@@ -1254,17 +1254,6 @@ nucomp_marshal_dump(VALUE self)
     return a;
 }
 
-#ifdef MARSHAL_OLD_STYLE
-/* :nodoc: */
-static VALUE
-nucomp_marshal__dump(VALUE self, VALUE limit)
-{
-    VALUE arg;
-    arg = nucomp_marshal_dump(self);
-    return rb_marshal_dump(arg, Qnil);
-}
-#endif
-
 /* :nodoc: */
 static VALUE
 nucomp_marshal_load(VALUE self, VALUE a)
@@ -1283,30 +1272,6 @@ nucomp_marshal_load(VALUE self, VALUE a)
     return self;
 }
 
-#ifdef MARSHAL_LOAD_DIRECT
-/* :nodoc: */
-static VALUE
-nucomp_marshal_load_fake(VALUE self, VALUE a)
-{
-    rb_raise(rb_eNotImpError, "not implemented");
-}
-
-VALUE
-rb_Complex_marshal_load(VALUE obj, VALUE a)
-{
-    return nucomp_marshal_load(obj, a);
-}
-#endif
-
-#ifdef MARSHAL_OLD_STYLE
-/* :nodoc: */
-static VALUE
-nucomp_marshal__load(VALUE klass, VALUE s)
-{
-    return nucomp_marshal_load(nucomp_s_alloc(klass), rb_marshal_load(s));
-}
-#endif
-
 /* --- */
 
 VALUE
@@ -1985,18 +1950,8 @@ Init_Complex(void)
     rb_define_method(rb_cComplex, "to_s", nucomp_to_s, 0);
     rb_define_method(rb_cComplex, "inspect", nucomp_inspect, 0);
 
-#ifndef MARSHAL_LOAD_DIRECT
-#ifndef MARSHAL_OLD_STYLE
     rb_define_method(rb_cComplex, "marshal_dump", nucomp_marshal_dump, 0);
     rb_define_method(rb_cComplex, "marshal_load", nucomp_marshal_load, 1);
-#else
-    rb_define_method(rb_cComplex, "_dump", nucomp_marshal__dump, 1);
-    rb_define_singleton_method(rb_cComplex, "_load", nucomp_marshal__load, 1);
-#endif
-#else
-    rb_define_method(rb_cComplex, "marshal_dump", nucomp_marshal_dump, 0);
-    rb_define_method(rb_cComplex, "marshal_load", nucomp_marshal_load_fake, 1);
-#endif
 
     /* --- */
 
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index e963d99b06..9690964ac8 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -147,9 +147,6 @@ VALUE rb_rational_new(VALUE, VALUE);
 VALUE rb_Rational(VALUE, VALUE);
 #define rb_Rational1(x) rb_Rational((x), INT2FIX(1))
 #define rb_Rational2(x,y) rb_Rational((x), (y))
-#ifdef MARSHAL_LOAD_DIRECT
-VALUE rb_Rational_marshal_load(VALUE, VALUE);
-#endif
 /* complex.c */
 VALUE rb_complex_raw(VALUE, VALUE);
 #define rb_complex_raw1(x) rb_complex_raw((x), INT2FIX(0))
@@ -161,9 +158,6 @@ VALUE rb_complex_polar(VALUE, VALUE);
 VALUE rb_Complex(VALUE, VALUE);
 #define rb_Complex1(x) rb_Complex((x), INT2FIX(0))
 #define rb_Complex2(x,y) rb_Complex((x), (y))
-#ifdef MARSHAL_LOAD_DIRECT
-VALUE rb_Complex_marshal_load(VALUE, VALUE);
-#endif
 /* class.c */
 VALUE rb_class_boot(VALUE);
 VALUE rb_class_new(VALUE);
diff --git a/marshal.c b/marshal.c
index 45048db2f2..046729d364 100644
--- a/marshal.c
+++ b/marshal.c
@@ -1622,21 +1622,7 @@ r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
 	    }
 	    v = r_entry(v, arg);
 	    data = r_object(arg);
-#ifndef MARSHAL_LOAD_DIRECT
 	    rb_funcall(v, s_mload, 1, data);
-#else
-	    switch (TYPE(v)) {
-	    case T_COMPLEX:
-	      rb_Complex_marshal_load(v, data);
-	      break;
-	    case T_RATIONAL:
-	      rb_Rational_marshal_load(v, data);
-	      break;
-	    default:
-	      rb_funcall(v, s_mload, 1, data);
-	      break;
-	    }
-#endif
 	    check_load_arg(arg, s_mload);
             v = r_leave(v, arg);
 	}
diff --git a/rational.c b/rational.c
index 6fda5a29ce..c4469c8092 100644
--- a/rational.c
+++ b/rational.c
@@ -1600,16 +1600,6 @@ nurat_marshal_dump(VALUE self)
     return a;
 }
 
-#ifdef MARSHAL_OLD_STYLE
-/* :nodoc: */
-static VALUE
-nurat_marshal__dump(VALUE self, VALUE limit)
-{
-    VALUE arg = nurat_marshal_dump(self);
-    return rb_marshal_dump(arg, Qnil);
-}
-#endif
-
 /* :nodoc: */
 static VALUE
 nurat_marshal_load(VALUE self, VALUE a)
@@ -1632,30 +1622,6 @@ nurat_marshal_load(VALUE self, VALUE a)
     return self;
 }
 
-#ifdef MARSHAL_LOAD_DIRECT
-/* :nodoc: */
-static VALUE
-nurat_marshal_load_fake(VALUE self, VALUE a)
-{
-    rb_raise(rb_eNotImpError, "not implemented");
-}
-
- VALUE
-rb_Rational_marshal_load(VALUE obj, VALUE a)
-{
-    return nurat_marshal_load(obj, a);
-}
-#endif
-
-#ifdef MARSHAL_OLD_STYLE
-/* :nodoc: */
-static VALUE
-nurat_marshal__load(VALUE klass, VALUE s)
-{
-    return nurat_marshal_load(nurat_s_alloc(klass), rb_marshal_load(s));
-}
-#endif
-
 /* --- */
 
 VALUE
@@ -2408,18 +2374,8 @@ Init_Rational(void)
     rb_define_method(rb_cRational, "to_s", nurat_to_s, 0);
     rb_define_method(rb_cRational, "inspect", nurat_inspect, 0);
 
-#ifndef MARSHAL_LOAD_DIRECT
-#ifndef MARSHAL_OLD_STYLE
     rb_define_method(rb_cRational, "marshal_dump", nurat_marshal_dump, 0);
     rb_define_method(rb_cRational, "marshal_load", nurat_marshal_load, 1);
-#else
-    rb_define_method(rb_cRational, "_dump", nurat_marshal__dump, 1);
-    rb_define_singleton_method(rb_cRational, "_load", nurat_marshal__load, 1);
-#endif
-#else
-    rb_define_method(rb_cRational, "marshal_dump", nurat_marshal_dump, 0);
-    rb_define_method(rb_cRational, "marshal_load", nurat_marshal_load_fake, 1);
-#endif
 
     /* --- */