diff --git a/docs/CFEBuildInstrs.html b/docs/CFEBuildInstrs.html
index c354213687c..c71d68b5358 100644
--- a/docs/CFEBuildInstrs.html
+++ b/docs/CFEBuildInstrs.html
@@ -101,6 +101,22 @@ invalid code.  Instead, use the system assembler and linker.
 <div class="doc_text">
 <p>
 <ol>
+<li>
+<p>Retrieve the appropriate llvm-gcc4-x.y.source.tar.gz archive from the llvm
+web site.</p>
+<p>It is also possible to download the sources of the llvm-gcc4 front end from
+a read-only mirror using subversion.  To check out the code the first time use;
+</p>
+
+<tt>svn co svn://anonsvn.opensource.apple.com/svn/llvm <i>dst-directory</i></tt>
+
+<p>After that, the code can be be updated in the destination directory using;
+</p>
+
+<tt>svn update</tt>
+
+<p>The mirror is brought up to date every evening.</p>
+</li>
 <li><p>Configure and build the LLVM libraries and tools. There are two ways to
 do this: either with <i>objdir</i> == <i>srcdir</i> or
 <i>objdir</i> != <i>srcdir</i>. It is recommended