Add -fextended-default-rules and -fmono-pat-binds

[ghc-hetmet.git] / docs / users_guide / ghci.xml

diff --git a/docs/users_guide/ghci.xml b/docs/users_guide/ghci.xml
index 786815d..1736757 100644 (file)
--- a/docs/users_guide/ghci.xml
+++ b/docs/users_guide/ghci.xml
@@ -676,7 +676,7 @@ Wed Mar 14 12:23:13 GMT 2001
 
     </sect2>
 
-    <sect2>
+    <sect2 id="extended-default-rules">
       <title>Type defaulting in GHCi</title>
     <indexterm><primary>Type default</primary></indexterm>
     <indexterm><primary><literal>Show</literal> class</primary></indexterm>
@@ -715,6 +715,8 @@ Wed Mar 14 12:23:13 GMT 2001
            numeric, <emphasis>or is <literal>Show</literal>, 
                <literal>Eq</literal>, or <literal>Ord</literal></emphasis>.</para></listitem>
       </itemizedlist>
+   The same type-default behaviour can be enabled in an ordinary Haskell
+   module, using the flag <literal>-fextended-default-rules</literal>.
    </para>
     </sect2>
   </sect1>