Index: en_US.ISO8859-1/books/porters-handbook/makefiles/chapter.xml
===================================================================
--- en_US.ISO8859-1/books/porters-handbook/makefiles/chapter.xml
+++ en_US.ISO8859-1/books/porters-handbook/makefiles/chapter.xml
@@ -3200,10 +3200,15 @@
 	<package role="port">devel/gmake</package> to
 	<varname>BUILD_DEPENDS</varname>.  To prevent such additional
 	dependencies from polluting <varname>RUN_DEPENDS</varname>,
-	take care to assign with expansion, that is, expand the value
-	before assigning it to the variable:</para>
-
-      <programlisting>RUN_DEPENDS:=	${BUILD_DEPENDS}</programlisting>
+	create another variable with the current content of
+	<varname>BUILD_DEPENDS</varname> and assign it to both
+	<varname>BUILD_DEPENDS</varname> and
+	<varname>RUN_DEPENDS</varname>:</para>
+
+      <programlisting>MY_DEPENDS=	some:${PORTSDIR}/devel/some \
+		other:${PORTSDIR}/lang/other
+BUILD_DEPENDS=	${MY_DEPENDS}
+RUN_DEPENDS=	${MY_DEPENDS}</programlisting>
     </sect2>
 
     <sect2 xml:id="makefile-build_depends">