<sect1 id="aa-m4" xreflabel="M4"> <title>M4</title> <?dbhtml filename="m4.html" dir="appendixa"?> <para>For installation instructions see <xref linkend="ch06-m4"/>.</para> &aa-m4-down; &aa-m4-shortdesc; &aa-m4-desc; &aa-m4-dep; </sect1>
