Index: Makefile
===================================================================
--- Makefile	(revision 41102)
+++ Makefile	(working copy)
@@ -20,6 +20,7 @@
 
 # XML content
 SRCS=  book.xml
+SRCS+= uses.xml
 
 # Use the local DSSSL file
 DSLHTML?= 	${.CURDIR}/freebsd.dsl
Index: book.xml
===================================================================
--- book.xml	(revision 41102)
+++ book.xml	(working copy)
@@ -3,14 +3,22 @@
 	"../../../share/xml/freebsd42.dtd" [
 <!ENTITY % entities PUBLIC "-//FreeBSD//ENTITIES DocBook FreeBSD Entity Set//EN" "../../share/xml/entities.ent">
 %entities;
-]>
 
+
 <!--
      The FreeBSD Documentation Project
 
      $FreeBSD$
 -->
 
+<!ENTITY % values.uses "INCLUDE">
+
+<![%values.uses;[
+  <!ENTITY values.uses SYSTEM "uses.xml">
+]]>
+
+]>
+
 <book lang='en'>
   <bookinfo>
     <title>FreeBSD Porter's Handbook</title>
@@ -3772,6 +3780,20 @@
 	  is the same as <makevar>DEPENDS_TARGET</makevar>.</para>
       </sect2>
 
+      <sect2 id="uses">
+	<title><makevar>USES</makevar></title>
+
+	<para>There several parameters exist for defining different kind
+	  of features and dependencies that the port in question uses.
+	  They can be specified by adding the following line to the
+	  <filename>Makefile</filename> of the port:</para>
+
+	<programlisting>USES= feature[:arguments]</programlisting>
+
+	<para>For the complete list of such values, please see <xref
+	    linkend="uses-values"/>.</para>
+      </sect2>
+
       <sect2 id="use-vars">
 	<title><makevar>USE_<replaceable>*</replaceable></makevar></title>
 
@@ -16840,4 +16862,28 @@
 	about creating has already been submitted.</para>
     </sect1>
   </chapter>
+
+  <chapter id="appendices">
+    <title>Appendices</title>
+
+    <sect1 id="uses-values">
+      <title>Values of <makevar>USES</makevar></title>
+
+      <table frame="none">
+	<title>Values of <makevar>USES</makevar></title>
+	  <tgroup cols="2">
+	    <thead>
+	      <row>
+		<entry>Feature</entry>
+		<entry>Arguments</entry>
+		<entry>Description</entry>
+	      </row>
+	    </thead>
+	    <tbody>
+    &values.uses;
+	    </tbody>
+	  </tgroup>
+      </table>
+    </sect1>
+  </chapter>
 </book>
Index: uses.xml
===================================================================
--- uses.xml	(revision 0)
+++ uses.xml	(working copy)
@@ -0,0 +1,8 @@
+<row>
+  <entry>pathfix</entry>
+  <entry>none</entry>
+  <entry>Look for the <filename>Makefile.in</filename> and
+    <filename>configure</filename> files in the port's associated
+    sources and fix common paths to make sure they respect the &os;
+    hierarchy.</entry>
+</row>