diff --git a/reference/xslt/reference.xml b/reference/xslt/reference.xml
index 0a6c00f42e..959350908b 100644
--- a/reference/xslt/reference.xml
+++ b/reference/xslt/reference.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
  <reference id="ref.xslt">
   <title>XSLT functions</title>
   <titleabbrev>XSLT</titleabbrev>
@@ -50,6 +50,25 @@
      options. The <productname>Sablotron</productname>
      library should be installed somewhere your compiler can find it.
     </para>
+    <para>
+     Make sure you have the same libraries linked to the
+     <productname>Sablotron</productname> library as those, which are linked
+     with php. The configuration options:
+     <link linked="install.configure.with-expat-dir">--with-expat-dir</link>
+     <link linked="install.configure.with-iconv-dir">--with-iconv-dir</link>
+     are there to help you specify them. When asking for support, always
+     mention these directives, and whether there are other versions of those
+     libraries installed on your system somewhere. Naturally, provide all the
+     version numbers.
+    </para>
+    <para>
+     <title>JavaScript E-XSLT support</title>
+     <simpara>
+      If you compiled <productname>Sablotron</productname> with JavaScript
+      support, you must specify the option:
+      <link linked="install.configure.with-sablot-js">--with-sablot-js</link>.
+     </simpara>
+    </para>
    </section>
 
    <section id="xslt.configuration">
@@ -62,10 +81,7 @@
     &no.resource;
    </section>
 
-   <section id="xslt.constants">
-    &reftitle.constants;
-    &no.constants;
-   </section>
+   &reference.xslt.constants;
 
   </partintro>