diff --git a/reference/image/configure.xml b/reference/image/configure.xml
index 332b216471..cbee27c33b 100644
--- a/reference/image/configure.xml
+++ b/reference/image/configure.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <section id="image.installation">
  &reftitle.install;
  <para>
@@ -13,6 +13,11 @@
   Also note that the preferred truecolor image functions, such as 
   <function>imagecreatetruecolor</function>, require GD2.
  </para>
+ <para id="image.configure.php3">
+  To disable GD support in <emphasis>PHP 3</emphasis> add
+  <option role="configure">--without-gd</option> to your configure line.
+ </para>
+ 
  <para>
   Enhance the capabilities of GD to handle more image formats by specifying
   the <literal>--with-XXXX</literal> configure switch to your PHP configure
diff --git a/reference/uodbc/configure.xml b/reference/uodbc/configure.xml
index db0939a46d..88d2ee41c7 100644
--- a/reference/uodbc/configure.xml
+++ b/reference/uodbc/configure.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <section id="odbc.installation">
  &reftitle.install;
  <para>
@@ -158,6 +158,12 @@
     </listitem>
    </varlistentry>
   </variablelist>
+ </para>
+  <para id="odbc.configure.php3">
+  To disable unified ODBC support in <emphasis>PHP 3</emphasis> add
+  <option role="configure">--disable-unified-odbc</option> to your configure
+  line. Only applicable if iODBC, Adabas, Solid, Velocis or a custom ODBC
+  interface is enabled.
  </para>
  &windows.builtin;
 </section>