diff --git a/utils_dev/RUN_build.sh b/utils_dev/RUN_build.sh
index d33744bf78..fd44fc3948 100755
--- a/utils_dev/RUN_build.sh
+++ b/utils_dev/RUN_build.sh
@@ -4,26 +4,30 @@
 #
 #	$Header: /cvsroot/adempiere/utils_dev/myDevEnvTemplate.sh,v 1.6 2003/04/27 12:34:16 marekmosiewicz Exp $
 
-SAVED_DIR=`pwd`			#save current dir
-cd `dirname $0`			#change dir to place where script resides - does not work with sym links
-UTILS_DEV=`pwd`			#this is adempiere source
-cd $SAVED_DIR			#back to the saved directory
-
-.  $UTILS_DEV/myDevEnv.sh	#call environment
-
-
-if [ ! $ADEMPIERE_ENV==Y ] ; then
-    echo "Can't set development environemnt - check myDevEnv.sh"
-    exit 1
+#check java home
+if [ $JAVA_HOME ]; then
+  export PATH=$JAVA_HOME/bin:$PATH	
+else
+  echo JAVA_HOME is not set.
+  echo You may not be able to build Adempiere
+  echo Set JAVA_HOME to the directory of your local JDK.
+  exit
 fi
 
+# check jdk
+if  [ ! -f $JAVA_HOME/lib/tools.jar ] ; then
+   echo "** Need full Java SDK **"
+   exit
+fi
+
+#classpath
+export ANT_CLASSPATH=$CLASSPATH:../tools/lib/ant.jar:../tools/lib/ant-launcher.jar:../tools/lib/ant-swing.jar:../tools/lib/ant-commons-net.jar:../tools/lib/commons-net.jar:$JAVA_HOME/lib/tools.jar
+
 echo Cleanup ...
-$JAVA_HOME/bin/java -Dant.home="." $ANT_PROPERTIES org.apache.tools.ant.Main clean
+$JAVA_HOME/bin/java -classpath $ANT_CLASSPATH -Dant.home="." org.apache.tools.ant.Main clean
 
 echo Building ...
-$JAVA_HOME/bin/java   -Xmx500m  -Dant.home="." $ANT_PROPERTIES org.apache.tools.ant.Main -logger org.apache.tools.ant.listener.MailLogger complete
-
-ls $ADEMPIERE_INSTALL
+$JAVA_HOME/bin/java   -Xmx500m -classpath $ANT_CLASSPATH -Dant.home="." org.apache.tools.ant.Main -logger org.apache.tools.ant.listener.MailLogger complete
 
 echo Done ...
 
diff --git a/utils_dev/RUN_buildIncremental.sh b/utils_dev/RUN_buildIncremental.sh
index 31d06bc1ff..83baca02a9 100755
--- a/utils_dev/RUN_buildIncremental.sh
+++ b/utils_dev/RUN_buildIncremental.sh
@@ -1,32 +1,49 @@
 #	This script compile Adempiere 
 #	Ported from Windows script Marek Mosiewicz<marek.mosiewicz@jotel.com.pl>
 
-
-SAVED_DIR=`pwd`			#save current dir
-cd `dirname $0`/../utils_dev	#change dir to place where script resides - doesn not work with sym links
-UTILS_DEV=`pwd`			#this is adempiere source
-cd $SAVED_DIR			#back to the saved directory
-
-.  $UTILS_DEV/myDevEnv.sh	#call environment
-
-if [ ! $ADEMPIERE_ENV==Y ] ; then
-    echo "Can't set developemeent environemnt - check myDevEnv.sh"
-    exit 1
+# check java home
+if [ $JAVA_HOME ]; then
+  export PATH=$JAVA_HOME/bin:$PATH	
+else
+  echo JAVA_HOME is not set.
+  echo You may not be able to build Adempiere
+  echo Set JAVA_HOME to the directory of your local JDK.
+  exit
 fi
 
-echo "Stop Apps Server (waiting)"
-$ADEMPIERE_HOME/utils/RUN_Server2Stop.sh
-sleep 5
+# check jdk
+if  [ ! -f $JAVA_HOME/lib/tools.jar ] ; then
+   echo "** Need full Java SDK **"
+   exit
+fi
+
+# check adempiere home
+if [ ! $ADEMPIERE_HOME ] ; then
+  echo Warning: ADEMPIERE_HOME is not set.
+  echo You will not be able to update your local Adempiere Deployment.
+  echo Set ADEMPIERE_HOME to the directory of your local Adempiere Deployment.
+fi
+
+# stop running adempiere server
+if [ $ADEMPIERE_HOME ] ; then
+   echo "Stop Apps Server (waiting)"
+   $ADEMPIERE_HOME/utils/RUN_Server2Stop.sh
+   sleep 5
+fi
+
+#classpath
+export ANT_CLASSPATH=$CLASSPATH:../tools/lib/ant.jar:../tools/lib/ant-launcher.jar:../tools/lib/ant-swing.jar:../tools/lib/ant-commons-net.jar:../tools/lib/commons-net.jar:$JAVA_HOME/lib/tools.jar
 
 echo Building ...
-$JAVA_HOME/bin/java -Dant.home="." $ANT_PROPERTIES org.apache.tools.ant.Main update
+$JAVA_HOME/bin/java -classpath $ANT_CLASSPATH -Dant.home="." org.apache.tools.ant.Main update
 
-ls $ADEMPIERE_INSTALL
+# start adempiere server
+if [ $ADEMPIERE_HOME ] ; then
+   echo	Cleaning up ...
+   rm -r -f $ADEMPIERE_HOME/jboss/server/adempiere/tmp
 
-echo	Cleaning up ...
-rm -r -f $ADEMPIERE_HOME/jboss/server/adempiere/tmp
-
-echo	Starting Apps Server ...
-$ADEMPIERE_HOME/utils/RUN_Server2.sh
+   echo	Starting Apps Server ...
+   $ADEMPIERE_HOME/utils/RUN_Server2.sh
+fi
 
 exit 0
diff --git a/utils_dev/build.xml b/utils_dev/build.xml
index ff6d69500e..9ff312ce62 100644
--- a/utils_dev/build.xml
+++ b/utils_dev/build.xml
@@ -60,7 +60,7 @@
 	<!-- ================================================ -->
 	<target name="install" depends="" description="Environment dependent">
 		<echo message="=========== Install Adempiere"/>
-		<copy todir="${env.ADEMPIERE_INSTALL}">
+		<copy todir="${env.ADEMPIERE_INSTALL}" verbose="true">
 			<fileset dir="install/build" includes="Adempiere_*"/>
 		</copy>
 		<!-- Delete Existing stuff, but not utils + data 	-->