<?xml version="1.0"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:t="test" targetNamespace="test">

  <!-- Type base depends on derived which in turn depends on base -->
 
  <complexType name="derived">
    <complexContent>
      <extension base="t:base"/>
    </complexContent>
  </complexType>
  
  <complexType name="base">
    <sequence>
      <element name="e">
        <complexType>
          <complexContent>
            <extension base="t:derived"/>
          </complexContent>
        </complexType>
      </element>
    </sequence>
  </complexType>

  <element name="root" type="t:base"/>

</schema>
