X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=docs%2Fusers_guide%2Fusing.xml;h=fad30ac245558c17c752a0e1622d10647e6c8238;hb=46f02d59813499ba2aa44e7831e0b69ec6d8f25d;hp=8b876204ece31167c7ccce065d0a03d622ead402;hpb=058b5c20ba7bb3adc4f130ff24893c13941eca4d;p=ghc-hetmet.git

diff --git a/docs/users_guide/using.xml b/docs/users_guide/using.xml
index 8b87620..fad30ac 100644
--- a/docs/users_guide/using.xml
+++ b/docs/users_guide/using.xml
@@ -1175,6 +1175,11 @@ f foo = foo { x = 6 }
           typographical errors that turn into hard-to-find bugs, e.g.,
           in the inadvertent capture of what would be a recursive call in
           <literal>f = ... let f = id in ... f ...</literal>.</para>
+          <para>The warning is suppressed for names beginning with an underscore.  For example
+          <programlisting>
+             f x = do { _ignore &lt;- this; _ignore &lt;- that; return (the other) }
+          </programlisting>
+         </para>
 	</listitem>
       </varlistentry>