diff --git a/build.xml b/build.xml
index 162ea2b19..61f8f10fb 100644
--- a/build.xml
+++ b/build.xml
@@ -37,8 +37,6 @@ build.sysclasspath=ignore
         <mkdir dir="${build.dir}/gen/org/antlr/v4" />
     </target>
 
-
-
 	<target name="antlr" depends="init">
 		<echo>parse grammars</echo>
 		<java classname="org.antlr.Tool" fork="true" failonerror="false" maxmemory="300m"
@@ -57,23 +55,6 @@ build.sysclasspath=ignore
 			</classpath>
 		</java>
 
-<!--
-		<echo>semantics grammars</echo>
-		<java classname="org.antlr.Tool" fork="true" failonerror="false" maxmemory="300m"
-			dir="${basedir}/tool/src/org/antlr/v4/semantics">
-			<arg value="-make"/>
-			<arg value="-lib"/>
-			<arg value="../parse"/>
-			<arg value="BasicSemanticTriggers.g"/>
-			<arg value="CollectSymbols.g"/>
-			<arg value="Refs.g"/>
-			<classpath>
-				<pathelement location="${antlr3.jar}"/>
-				<pathelement path="${java.class.path}"/>
-			</classpath>
-		</java>
-		-->
-
 		<echo>codegen grammars</echo>
 		<java classname="org.antlr.Tool" fork="true" failonerror="false" maxmemory="300m"
 			dir="${basedir}/tool/src/org/antlr/v4/codegen">
@@ -87,21 +68,6 @@ build.sysclasspath=ignore
 			</classpath>
 		</java>
 
-		<!--
-		<echo>gunit grammars</echo>
-		<java classname="org.antlr.Tool" fork="true" failonerror="false" maxmemory="300m"
-			dir="${basedir}/gunit/src/org/antlr/v4/gunit">
-			<arg value="-make"/>
-			<arg value="ASTVerifier.g"/>
-			<arg value="gUnit.g"/>
-			<arg value="jUnitGen.g"/>
-			<arg value="Semantics.g"/>
-			<classpath>
-				<pathelement location="${antlr3.jar}"/>
-				<pathelement path="${java.class.path}"/>
-			</classpath>
-		</java>
-		-->
 	</target>
 
     <target name="compile" depends="antlr" description="Compile for generic OS">
@@ -110,7 +76,6 @@ build.sysclasspath=ignore
 		<copy todir="${build.dir}/src" >
 			<fileset dir="${basedir}/tool/src/"/>
 			<fileset dir="${basedir}/runtime/Java/src/"/>
-			<!-- <fileset dir="${basedir}/gunit/src/"/> -->
 		</copy>
 		<replace dir="${build.dir}/src" token="@version@" value="${version}"/>
         <javac
@@ -163,14 +128,6 @@ build.sysclasspath=ignore
 				<include name="**/*.st"/>
 				<include name="**/*.stg"/>
 			</fileset>
-			<!--
-			<fileset dir="${basedir}/gunit/src/">
-				<include name="**/*.java"/>
-				<include name="**/*.g"/>
-				<include name="**/*.st"/>
-				<include name="**/*.stg"/>
-			</fileset>
-			-->
         </copy>
 
         <copy todir="${install.root.dir}">