diff -up ./build.xml.sav ./build.xml
--- ./build.xml.sav	2009-03-20 15:15:18.000000000 -0400
+++ ./build.xml	2009-03-20 15:29:17.000000000 -0400
@@ -209,6 +209,7 @@ Version:
             destdir="${build.dest}"
             debug="${debug}"
             classpathref="build.classpath"
+			source="1.4"
 	  >
         <include name="org/acm/seguin/tools/build/CreateVersion.java"/>
      </javac>
@@ -359,6 +360,7 @@ Version:
             destdir="${build.dest}"
             debug="${debug}"
             classpathref="build.classpath"
+			source="1.4"
             >
         <exclude name="javastyle/**"/>
         <exclude name="org/acm/seguin/ide/jedit/**"    unless="jedit.present"/>
@@ -379,6 +381,7 @@ Version:
             destdir="${build.dest}"
             debug="${debug}"
             classpathref="jEdit.build.classpath"
+			source="1.4"
 	         >
         <exclude name="org/acm/seguin/ide/cafe/**"/>
         <exclude name="org/acm/seguin/ide/jbuilder/**"/>
@@ -400,6 +403,7 @@ Version:
             destdir="${test.classes.dir}"
             debug="${debug}"
             classpathref="test.build.classpath"
+			source="1.4"
 	         >
      </javac>
   </target>
@@ -581,6 +585,7 @@ Version:
 	         destdir="${build.dest}"
 	         debug="${debug}"
 	         classpathref="build.classpath"
+			source="1.4"
             >
         <include name="PrettyPrinter.java" />
         <include name="org/acm/seguin/ant/*.java" />
@@ -1089,6 +1094,7 @@ Version:
 	         destdir="${build.dest}"
 	         debug="${debug}"
 	         classpathref="build.classpath"
+			source="1.4"
             >
         <include name="PrettyPrinter.java" />
         <include name="org/acm/seguin/ant/Pretty.java" />