diff --git a/test/fixedbugs/bug478.dir/a.go b/test/fixedbugs/bug478.dir/a.go
new file mode 100644
index 00000000000..a40e454f9b1
--- /dev/null
+++ b/test/fixedbugs/bug478.dir/a.go
@@ -0,0 +1,9 @@
+// Copyright 2013 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p1
+
+type S1 struct{}
+
+func (s S1) f() {}
diff --git a/test/fixedbugs/bug478.dir/b.go b/test/fixedbugs/bug478.dir/b.go
new file mode 100644
index 00000000000..c0fdf1127b4
--- /dev/null
+++ b/test/fixedbugs/bug478.dir/b.go
@@ -0,0 +1,13 @@
+// Copyright 2013 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p2
+
+import "./a"
+
+type S2 struct {
+	p1.S1
+}
+
+func (s S2) f() {}
diff --git a/test/fixedbugs/bug478.go b/test/fixedbugs/bug478.go
new file mode 100644
index 00000000000..5e339e801d5
--- /dev/null
+++ b/test/fixedbugs/bug478.go
@@ -0,0 +1,10 @@
+// compiledir
+
+// Copyright 2013 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Using the same unexported name for a method as a method on an
+// imported embedded type caused a gccgo compilation failure.
+
+package ignored