Add some undocumented command line options to the DocBook docs.

svn path=/trunk/KDE/kdesdk/doc/scripts/kdesvn-build/; revision=423617

doc/index.docbook

@@ -1129,7 +1129,7 @@ without cleaning the build directory.
 <listitem><para>
 run <command>make <option>-f</option>
 Makefile.cvs</command> again to create the configure script, and continue
-building as normal.  This option implies <option>--reconfigure</option>.
+building as normal.  This option implies <option><link linkend="cmdline-reconfigure">--reconfigure</link></option>.
 </para></listitem>
 </varlistentry>
 
@@ -1183,12 +1183,32 @@ prepare all the configure scripts at once so you can view the <command>./configu
 
 <varlistentry id="cmdline-install"><term><option>--install</option></term>
 <listitem><para>
-if this is the only command-line option, it tries to install all of the modules contained in
+If this is the only command-line option, it tries to install all of the modules contained in
 successfully-built, except for qt-copy, which doesn't need installation.  If command-line
 options are specified after <option>--install</option>, they are all assumed to be modules to install.
 </para></listitem>
 </varlistentry>
 
+<varlistentry id="cmdline-global-option">
+<term><option>--&lt;option-name&gt;=</option></term>
+<listitem><para>
+You can use this option to override an option in your configuration file for
+every module.  For instance, to override the <link
+linkend="conf-log-dir">log-dir</link> option, you would do:
+<option>--log-dir=/path/to/dir</option>.
+</para></listitem>
+</varlistentry>
+
+<varlistentry id="cmdline-module-option">
+<term><option>--&lt;module-name&gt;,&lt;option-name&gt;=</option></term>
+<listitem><para>
+You can use this option to override an option in your configuration file for
+a specific module.  For instance, to override the <link
+linkend="conf-use-unsermake">use-unsermake</link> option for kdemultimedia, you
+would do: <option>--kdemultimedia,use-unsermake=false</option>.
+</para></listitem>
+</varlistentry>
+
 </variablelist>
 
 <para>