--- subversion-1.4.x/build/generator/gen_make.py
+++ subversion-1.4.x/build/generator/gen_make.py
@@ -292,6 +292,6 @@
           self.ofile.write(
             '%s_SRC = %s\n'
             '$(%s_OBJECTS): $(%s_SRC)\n'
-            '\t%s -d %s -classpath %s:$(%s_CLASSPATH) $(%s_SRC)\n'
+            '\t%s -source 1.4 -target 1.4 -d %s -classpath %s:$(%s_CLASSPATH) $(%s_SRC)\n'
             % (targ_varname, string.join(object_srcs),
 
--- subversion-1.4.x/subversion/bindings/java/javahl/build/build.xml
+++ subversion-1.4.x/subversion/bindings/java/javahl/build/build.xml
@@ -17,13 +17,13 @@
         </javah>
     </target>
     <target name="javac" unless="junit.path">
-        <javac compiler="modern" destdir="classes">
+        <javac source="1.4" target="1.4" destdir="classes">
             <src path="src"/>
             <exclude name="org/tigris/subversion/javahl/tests/**"/>
         </javac>
     </target>
     <target name="javac-tests" if="junit.path">
-        <javac compiler="modern" destdir="classes">
+        <javac source="1.4" target="1.4" destdir="classes">
             <src path="src"/>
             <classpath path="${junit.path}"/>
         </javac>