+ <sect2 id="source-pragma">
+ <title>SOURCE pragma</title>
+
+ <indexterm><primary>SOURCE</primary></indexterm>
+ <para>The <literal>{-# SOURCE #-}</literal> pragma is used only in <literal>import</literal> declarations,
+ to break a module loop. It is described in detail in <xref linkend="mutual-recursion"/>.
+ </para>
+</sect2>
+