diff --git a/build.xml b/build.xml
index 8f05de2..624be4c 100644
--- a/build.xml
+++ b/build.xml
@@ -2,9 +2,9 @@
 
 <project name="Fernflower" default="buildAll" basedir=".">
 
-   	<taskdef resource="proguard/ant/task.properties" 
+    <taskdef resource="proguard/ant/task.properties"
    				classpath="${basedir}/lib/proguard_4_11.jar" />
-	
+
    	<taskdef name="javancss"
 	            classname="javancss.JavancssAntTask">
    	    <classpath>
@@ -14,26 +14,33 @@
    	      	<pathelement location="${basedir}/lib/ncss/ccl.jar"/>
    	    </classpath>
 	</taskdef>
-	
+
 	<target name="init" description="initialization">
 		<property name="jar.file" value="fernflower.jar" />
 		<property name="timer.jar.file" value="timer.jar" />
+        <property name="src" value="${basedir}/src" />
 		<property name="bin" value="${basedir}/bin" />
 		<property name="lib" value="${basedir}/lib" />
 		<property name="fulldist" value="${basedir}/dist/full" />
 		<property name="obfuscateddist" value="${basedir}/dist/obfuscated" />
-
-		<property name="tomcat" value="C:/revjava/apache-tomcat-5.5.27/shared/lib/" />
-		<property name="webwrapper" value="D:/Nonbku/workspace/webwrapper/lib/" />
 	</target>
 
-	<target name="buildAll" depends="init, jar, obfuscate" description="build full distribution paket"/>
-	
-	<target name="timer" depends="init" description="generate timer jar file">
-		<jar jarfile="${lib}/timer/${timer.jar.file}" compress="true" basedir="${bin}" includes="com/**/*.class,*.class"/>
-	</target>
+    <target name="buildAll" depends="jar, obfuscate" description="build full distribution packet"/>
 
-	<target name="jar" depends="init" description="generate jar file">
+    <target name="clean" depends="init">
+        <delete includeemptydirs="true" failonerror="false">
+            <fileset dir="${bin}"/>
+            <fileset dir="${fulldist}"/>
+            <fileset dir="${obfuscateddist}"/>
+        </delete>
+    </target>
+
+    <target name="compile" depends="clean" description="compile sources (main module only)">
+        <mkdir dir="${bin}"/>
+        <javac srcdir="${src}" destdir="${bin}" source="1.6" target="1.6" encoding="UTF-8"/>
+    </target>
+
+    <target name="jar" depends="compile" description="generate jar file">
 		<jar jarfile="${fulldist}/${jar.file}" compress="true" basedir="${bin}" includes="**/*.class" excludes="test/**/*.*,com/**/*.*,*.class">
 	        <manifest>
 	            <attribute name="Main-Class" value="de.fernflower.main.decompiler.ConsoleDecompiler"/>
@@ -41,57 +48,64 @@
 		</jar>
 	</target>
 
-	<target name="deploy" depends="jar" description="deploy generated jar file to Tomcat">
-		 <copy todir="${webwrapper}" file="${fulldist}/${jar.file}" overwrite="true"/>
-		 <copy todir="${tomcat}" file="${fulldist}/${jar.file}" overwrite="true"/>
-	</target>
-	
-	<target name="loc" description="count lines of code">
-		<javancss srcdir="${basedir}/src"
-			generateReport="true"
-			functionMetrics="false" 			
-			classMetrics="false"
-		    includes="**/*.java"
-			excludes="**/test/**,**/de/fernflower/code/instructions/**,**/timer/**"
-		/>
-	</target>
-		
-	
-	<target name="obfuscate" description="Call Proguard on Fernflower">
-		<!-- 4.0.1 -->
-	  <proguard>
+    <target name="obfuscate" depends="init" description="Call Proguard on Fernflower">
+        <condition property="rt_jar" value="${java.home}/../Classes/classes.jar" else="${java.home}/lib/rt.jar">
+            <contains string="${java.vendor}" substring="Apple"/>
+        </condition>
+        <proguard>
+            -injars "${fulldist}/${jar.file}"
+            -outjars "${obfuscateddist}/${jar.file}"
+            -libraryjars "${rt_jar}"
 
-	  	-injars       "${fulldist}/${jar.file}"
-	  	-outjars      "${obfuscateddist}/${jar.file}"
-	  	-libraryjars  "${java.home}/lib/rt.jar"
+            -forceprocessing
+            -repackageclasses
+            <!-- -allowaccessmodification -->
 
-	  	-forceprocessing
-	  	-repackageclasses
-	  	<!-- -allowaccessmodification -->
-	  	
-	  	-optimizationpasses 5 
-	  	
-	  	-keep public class de.fernflower.main.decompiler.ConsoleDecompiler {
-	  	    public protected *;
-	  	}
+            -optimizationpasses 5
 
-	  	-keep public class de.fernflower.main.decompiler.EclipseDecompiler {
-	  	    public protected *;
-	  	}
+            -keep public class de.fernflower.main.decompiler.ConsoleDecompiler {
+                public protected *;
+            }
+
+            -keep public class de.fernflower.main.decompiler.EclipseDecompiler {
+                public protected *;
+            }
+
+            -keep public class de.fernflower.main.extern.* {
+                public protected *;
+            }
+
+            <!--
+            -keep public class de.fernflower.code.instructions.* {
+                public protected *;
+            }
+            -->
+        </proguard>
+    </target>
+
+    <!-- Helper targets -->
+
+    <target name="timer" depends="init" description="generate timer jar file">
+        <jar jarfile="${lib}/timer/${timer.jar.file}" compress="true" basedir="${bin}" includes="com/**/*.class,*.class"/>
+    </target>
+
+    <target name="deploy" depends="jar" description="deploy generated jar file to Tomcat">
+        <property name="tomcat" value="C:/revjava/apache-tomcat-5.5.27/shared/lib/" />
+        <property name="webwrapper" value="D:/Nonbku/workspace/webwrapper/lib/" />
+        <copy todir="${webwrapper}" file="${fulldist}/${jar.file}" overwrite="true"/>
+        <copy todir="${tomcat}" file="${fulldist}/${jar.file}" overwrite="true"/>
+    </target>
+
+    <target name="loc" description="count lines of code">
+        <javancss srcdir="${basedir}/src"
+            generateReport="true"
+            functionMetrics="false"
+            classMetrics="false"
+            includes="**/*.java"
+            excludes="**/test/**,**/de/fernflower/code/instructions/**,**/timer/**"
+        />
+    </target>
 
-	  	-keep public class de.fernflower.main.extern.* {
-	  	    public protected *;
-	  	}
-	  	
-	  	<!--
-	  	-keep public class de.fernflower.code.instructions.* {
-	  	    public protected *;
-	  	}
-	  	-->
-	  	
-	  </proguard>
-	</target>
-	
 	<target name="printunused" depends="init" description="Print unused code">
 	  <proguard>
 
@@ -108,7 +122,7 @@
 	  		public *;
 	  	}
 	  	-->
-	  	
+
 	  	-keep public class de.fernflower.main.decompiler.ConsoleDecompiler {
 	  	    public protected *;
 	  	}
@@ -123,9 +137,9 @@
 
 	  	<!--
 	  	-keep public class de.fernflower.code.instructions.*
-	  	-->	  	
-	  	
+	  	-->
+
 	  </proguard>
 	</target>
-	
-</project>
\ No newline at end of file
+
+</project>