Update the users_guide regarding list notation in :print

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

diff --git a/docs/users_guide/using.xml b/docs/users_guide/using.xml
index 82d7afe..88f9e5e 100644 (file)
--- a/docs/users_guide/using.xml
+++ b/docs/users_guide/using.xml
@@ -1136,6 +1136,20 @@ f "2"    = 2
       </varlistentry>
 
       <varlistentry>
+       <term><option>-fwarn-monomorphism-restriction</option>:</term>
+       <listitem>
+         <indexterm><primary><option>-fwarn-monomorphism-restriction</option></primary></indexterm>
+         <indexterm><primary>monomorphism restriction, warning</primary></indexterm>
+         <para>Have the compiler warn/inform you where in your source
+          the Haskell Monomorphism Restriction is applied.  If applied silently
+         the MR can give rise to unexpected behaviour, so it can be helpful
+         to have an explicit warning that it is being applied.</para>
+
+         <para>This warning is on by default.</para>
+       </listitem>
+      </varlistentry>
+
+      <varlistentry>
        <term><option>-fwarn-unused-binds</option>:</term>
        <listitem>
          <indexterm><primary><option>-fwarn-unused-binds</option></primary></indexterm>