diff --git a/share/sgml/freebsd.dtd b/share/sgml/freebsd.dtd
index 29718f7b91..8374f3b226 100644
--- a/share/sgml/freebsd.dtd
+++ b/share/sgml/freebsd.dtd
@@ -1,102 +1,115 @@
 <!-- FreeBSD Documentation Project, Extended DocBook DTD
 
      This DTD builds upon the DocBook 3.1 DTD. It extends it in order to
      add some new elements.
 
      The comment style and section headings are drawn from the DocBook DTD.
 
      The FPI for this DTD is "-//FreeBSD//DTD DocBook V3.1-Based Extension//EN"
 
-     $FreeBSD$
+     $FreeBSD: doc/share/sgml/freebsd.dtd,v 1.3 1999/09/06 06:53:40 peter Exp $
 -->
 
 <!-- ..................................................................... -->
 <!-- Parameter entities .................................................. -->
 
 <!-- These parameter entities have specific meanings, and default to 
      "IGNORE". The SGML parser is free to redefine them to "INCLUDE" to
      cause special processing.                                             -->
 
 <!ENTITY % output.html  "IGNORE">    <!-- HTML output is being generated   -->
 <!ENTITY % output.print "IGNORE">    <!-- Print output is being generated  -->
 
 <!-- ..................................................................... -->
 <!-- Entities for element classes and mixtures ........................... -->
 
 <!-- Object-level classes ................................................ -->
 
 <!ENTITY % local.list.class "|FAQList">
 
 <!-- Character level classes -->
 <!ENTITY % local.tech.char.class "|HostID|Username|Devicename|MakeTarget|MakeVar">
 
+<!-- OS Version attributes ...............................................
+
+     Each element has three attributes which specify which version(s) of
+     FreeBSD the element's content applies to.  It is up to the
+     pre-processor to include or exclude elements based on the value of
+     these attributes.                                                     -->
+<!ENTITY % local.common.attrib
+     "OSVersionMin        CDATA        #IMPLIED
+      OSVersionMax        CDATA        #IMPLIED
+      OSVersionIn         CDATA        #IMPLIED">
+
 <!-- Altered general entities ............................................
 
      The HTML 4.0 DTD includes some new ISO entities. Most browsers don't
      support them yet. Change the definition of some of these entities to
      character strings that the browsers will support.
 
      This does not apply when generating printed output, so these are 
      contained within a %output.html; marked section.
 
      As browser technology improves, these definitions can be removed.     -->
 
 <![ %output.html; [
 <!ENTITY ldquo  "``">
 <!ENTITY rdquo  "''">
-<!ENTITY mdash  "---">
-<!ENTITY ndash  "--">
+<!ENTITY lsquo  "`">
+<!ENTITY rsquo  "'">
+<!ENTITY mdash  "--">
+<!ENTITY ndash  "-">
 <!ENTITY hellip "...">
 <!ENTITY dollar "$">
 ]]>
 
 <!-- Pull in the original DTD -->
 <!ENTITY % orig-docbook PUBLIC "-//OASIS//DTD DocBook V3.1//EN">
 %orig-docbook;
 
 <!-- ...................................................................... -->
 <!-- Inline, link, and ubiquitous elements ................................ -->
 
 <!-- Technical and computer terms ......................................... -->
 
 <!ELEMENT HostID - - ((%cptr.char.mix;)+)>
 <!ATTLIST HostID
                 --
                 Role: More specific information about this hostname.
                 If not specified then the default is 'hostname'.
                 --
                 Role    (Hostname
                         |Domainname
                         |FQDN
                         |IPAddr
                         |Netmask
                         |MAC)      #IMPLIED
                 %common.attrib;
 >
 
 <!ELEMENT Username - - ((%cptr.char.mix;)+)>
 <!ATTLIST Username
                 %common.attrib;
 >
 
 <!ELEMENT Devicename - - ((%cptr.char.mix;)+)>
 <!ATTLIST Devicename
                 %common.attrib;
 >
 
 <!ELEMENT MakeTarget - - ((%cptr.char.mix;)+)>
 <!ATTLIST MakeTarget
                 %common.attrib;
 >
 
 <!ELEMENT MakeVar - - ((%cptr.char.mix;)+)>
 <!ATTLIST MakeVar
                 %common.attrib;
 >
 
 <!-- ...................................................................... -->
 <!-- General entities for reuse ........................................... -->
 
 <!ENTITY prompt.root		"<prompt>#</prompt>">
 <!ENTITY prompt.user		"<prompt>%</prompt>">