Add the -ddump-mod-cycles flag to the user manual

diff --git a/docs/users_guide/separate_compilation.xml b/docs/users_guide/separate_compilation.xml
index 934deb1..91cefb4 100644 (file)
--- a/docs/users_guide/separate_compilation.xml
+++ b/docs/users_guide/separate_compilation.xml
@@ -1016,6 +1016,15 @@ ghc -M -optdep-f -optdep.depend ...
 
        <variablelist>
          <varlistentry>
+           <term><option>-ddump-mod-cycles</option></term>
+           <listitem>
+             <para>Display a list of the cycles in the module graph. This is
+         useful when trying to eliminate such cycles.  You do not need the <literal>-optdep</literal> prefix
+         for this flag.</para>
+           </listitem>
+         </varlistentry>
+
+         <varlistentry>
            <term><option>-w</option></term>
            <listitem>
              <para>Turn off warnings about interface file shadowing.</para>