X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=docs%2Fusers_guide%2Fusing.xml;h=88f9e5e60080cc91f75c5b7f99e5b801a043eb4c;hb=8f081b6469ca70363385be3ed2eac0965dab3be1;hp=82d7afe581ac3f9d3371e33b74a0fb11bdb58426;hpb=bb7d80b3b8d1396d481d3b24302bee24a3d92f71;p=ghc-hetmet.git

diff --git a/docs/users_guide/using.xml b/docs/users_guide/using.xml
index 82d7afe..88f9e5e 100644
--- 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>