Add an entry for USES=webplugin

svn path=/head/; revision=43262

en_US.ISO8859-1/books/porters-handbook/uses.xml

@@ -394,6 +394,41 @@
     your port before adding <literal>NEED_ROOT=yes</literal></entry>
 </row>
 
+<row>
+  <entry><literal>webplugin</literal></entry>
+  <entry>(none), <literal>ARGS</literal></entry>
+  <entry>Automatically create and remove symbolic links for each
+      application that supports the webplugin framework.
+      <literal>ARGS</literal> can be one of:
+      <itemizedlist>
+	<listitem><para><literal>gecko</literal>: support plug-ins based
+	    on Gecko</para></listitem>
+	<listitem><para><literal>native</literal>: support plug-ins for
+	    Gecko, Opera, and WebKit-GTK</para></listitem>
+	<listitem><para><literal>linux</literal>: support Linux
+	    plug-ins</para></listitem>
+	<listitem><para><literal>all</literal> (default, implicit):
+	    support all plug-in types</para></listitem>
+	<listitem><para>(individual entries): support only the browsers
+	    listed</para></listitem>
+      </itemizedlist>
+      The following variables can be adjusted:
+      <itemizedlist>
+	<listitem><para><varname>WEBPLUGIN_FILES</varname>: No default,
+	    must be set manually.  The plug-in files to
+	    install.</para></listitem>
+	<listitem><para><varname>WEBPLUGIN_DIR</varname>: The directory
+	    to install the plug-in files to, default <filename
+	      class="directory"><replaceable>PREFIX</replaceable>/lib/browser_plugins/<replaceable>WEBPLUGIN_NAME</replaceable></filename>.
+	    Set this if the port installs plug-in files outside of the
+	    default directory to prevent broken symbolic
+	    links.</para></listitem>
+	<listitem><para><varname>WEBPLUGIN_NAME</varname>: The final
+	    directory to install the plug-in files into, default
+	    <varname>PKGBASE</varname>.</para></listitem>
+      </itemizedlist></entry>
+</row>
+
 <row>
   <entry><literal>zenoss</literal></entry>
   <entry>(none)</entry>