diff --git a/build.xml b/build.xml
index bfde2d5..110b138 100644
--- a/build.xml
+++ b/build.xml
@@ -1,31 +1,39 @@
-<project default="run">
+<project name="lwjgl-examples">
 
-<target name="clean">
-	<delete dir="bin"/>
-	<delete dir="exe"/>
-</target>
+  <property file="build.properties" />
+  <property name="src.dir" value="src" />
+  <property name="build.dir" value="bin"/>
+  <property name="lwjgl_jars.dir" value="./libs/"/>
+  <property name="lwjgl_natives.dir" value="./libs/"/>
+  <property name="build.sysclasspath" value="last"/>
 
+  <path id="my_cp">
+    <fileset dir="${lwjgl_jars.dir}" includes="lwjgl.jar"/>
+    <fileset dir="${lwjgl_jars.dir}" includes="lwjgl_util.jar"/>
+  </path>
 
-<target name="compile" depends="clean">
-	<mkdir dir="bin"/>
-	<javac srcdir="src" destdir="bin"/>
-</target>
+  <target name="compile">
+    <mkdir dir="${build.dir}"/>
+    <javac srcdir="${src.dir}" destdir="${build.dir}" classpathref="my_cp"/>
+  </target>
 
-<target name="test" depends="compile">
-</target>
+  <target name="clean">
+    <delete dir="${build.dir}"/>
+  </target>
 
-<target name="jar" depends="compile">
-	<mkdir dir="exe"/>
-	<jar destfile="exe/HelloWorld.jar" basedir="bin">
-		<manifest>
-			<attribute name="Main-Class" value="org.sdf.HelloWorld"/>
-		</manifest>
-	</jar>
-</target>
-
-
-<target name="run" depends="jar">
-	<java jar="exe/HelloWorld.jar" fork="true"/>
-</target>
+  <target name="test" depends="compile">
+    <!--
+      fork="true" seems to be absolutely
+      necessary for the setting of java.library.path
+      to be effective. -->
 
+    <java fork="true" classname="Simple">
+      <classpath>
+        <path refid="my_cp"/>
+        <path location="${build.dir}"/>
+      </classpath>
+      <sysproperty key="java.library.path"
+                   value="${lwjgl_natives.dir}"/>
+    </java>
+  </target>
 </project>