Index: releases/bedework-3.7/build/buildTools/deftasks.xml
===================================================================
--- releases/bedework-3.7/build/buildTools/deftasks.xml (revision 3169)
+++ releases/bedework-3.7/build/buildTools/deftasks.xml (revision 3173)
@@ -349,15 +349,47 @@
       </if>      
 
-      <if>
-        <uptodate targetfile="@{jar-file}" >
-          <srcfiles refid="buildjar.java.sources" />
-          <srcfiles refid="buildjar.generated.java.sources" />
-          <srcfiles refid="buildjar.resource.files"/>
-          <srcfiles refid="dependency.fileset"/>
-        </uptodate>
+      <!-- See if the libraries are later than any classes --> 
+
+      <var name="org.bedework.libraries.changed" value="false" />
+      
+      <outofdate outputsources="org.bedework,changed.sources">
+        <sourcefiles>
+          <fileset dir="${lib.dir}">
+             <include name="*.jar"/>
+          </fileset>
+          <!-- This makes almost everything rebuild all the time
+               because it has the generated jars for the current package
+          <path refid="compile.classpath"/> 
+          -->
+        </sourcefiles>
+        <targetfiles>
+          <pathelement path="@{jar-file}"/>
+        </targetfiles>
+        <sequential>
+          <var name="org.bedework.libraries.changed" value="true" />
+          <noisyMsg message="**** @{jar-file} needs rebuilding - libraries changed" />
+        </sequential>
+      </outofdate>
+      
+      <noisyMsg message="**** org.bedework,changed.sources = ${org.bedework,changed.sources}" />
+      <noisyMsg message="**** org.bedework.libraries.changed = ${org.bedework.libraries.changed}" />
+
+      <if>
+        <and>
+          <not>
+            <equals arg1="${org.bedework.libraries.changed}" arg2="true" />
+          </not>
+          <uptodate targetfile="@{jar-file}" >
+            <srcfiles refid="buildjar.java.sources" />
+            <srcfiles refid="buildjar.generated.java.sources" />
+            <srcfiles refid="buildjar.resource.files"/>
+            <srcfiles refid="dependency.fileset"/>
+          </uptodate>
+        </and>
         <then>
           <noisyMsg message="**** @{jar-file} is up to date" />
         </then>
         <else>
+          <echo message="**** @{jar-file} being rebuilt" />
           <noisyMsg message="**** @{jar-file} needs rebuilding" />
 
Index: releases/bedework-3.7/build/buildTools/getJar.xml
===================================================================
--- releases/bedework-3.7/build/buildTools/getJar.xml (revision 3107)
+++ releases/bedework-3.7/build/buildTools/getJar.xml (revision 3173)
@@ -102,5 +102,5 @@
                   <noisyMsg message="Fetch ${org.bedework.getjar.jarname} from project @{project}" />
                   <copy file="${org.bedework.getjar.project.jar}"
-                        todir="@{lib}" overwrite="yes" />
+                        todir="@{lib}" overwrite="yes" preservelastmodified="true" />
                 </then>
               </if>
@@ -153,5 +153,5 @@
             	
               <copy file="@{libcache}/${org.bedework.getjar.jarname}"
-                    todir="@{lib}" overwrite="yes" />
+                    todir="@{lib}" overwrite="yes" preservelastmodified="true" />
             </else>
           </if>
Index: releases/bedework-3.7/build/buildTools/xjc.xml
===================================================================
--- releases/bedework-3.7/build/buildTools/xjc.xml (revision 3169)
+++ releases/bedework-3.7/build/buildTools/xjc.xml (revision 3173)
@@ -42,8 +42,8 @@
         </and>
         <then>
-          <noisyMsg message="**** @{jar.file} is up to date" />
+          <noisyMsg message="**** @{jar-file} is up to date" />
         </then>
         <else>
-          <noisyMsg message="**** @{jar.file} needs rebuilding" />
+          <noisyMsg message="**** @{jar-file} needs rebuilding" />
 
           <delete dir="${sourcedestdir}" />