update docs build system to use the new centralized httpd version info


git-svn-id: https://svn.apache.org/repos/asf/httpd/docs-build/trunk@333058 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/deps.xml b/deps.xml
index 73754b8..ce438be 100644
--- a/deps.xml
+++ b/deps.xml
@@ -113,7 +113,8 @@
                             xsl/common.xsl
                             xsl/util/*.xml
                             xsl/util/*.xsl
-                            lang/@{lang}.xml"
+                            lang/@{lang}.xml
+                            version.ent"
                   excludes="xsl/util/designations.xml
                             xsl/util/allmodules.xml" />
         <targetfileset dir="../"
@@ -232,7 +233,8 @@
             <srcfileset    dir="../style/"
                       includes="xsl/nroff.xsl
                                 xsl/util/*.xml
-                                lang/@{lang}.xml"
+                                lang/@{lang}.xml
+                                version.ent"
                       excludes="xsl/util/designations.xml
                                 xsl/util/allmodules.xml" />
             <targetfileset dir="../../man"
diff --git a/prereq.xml b/prereq.xml
index a45f9c5..7e7d677 100644
--- a/prereq.xml
+++ b/prereq.xml
@@ -1,4 +1,9 @@
 <?xml version="1.0"?>
+<!DOCTYPE project [
+    <!ENTITY % HTTPD-VERSION SYSTEM "../style/version.ent">
+    %HTTPD-VERSION;
+]>
+
 <!--
  Copyright 2004-2005 The Apache Software Foundation or its licensors,
                      as applicable
@@ -99,6 +104,8 @@
 
 
 <!-- load version dependent properties -->
+<property name="ap.httpd.version"
+         value="&httpd.major;.&httpd.minor;.&httpd.patch;" />
 <property prefix="ap" file="../style/build.properties" />
 
 </project>