+install_source_and_build()
+{
+# remove previously existing sources directory
+if [ -f $PRODUCT_DIR ] ; then
+ rm -rf $PRODUCT_DIR
+fi
+
+# install sources
+install_source
+
+# build sources
+prod_bin=`echo $PRODUCT_TYPE | sed "s%src%bin%g"`
+mkdir -p ${INSTALL_ROOT}/KERNEL_${VERSION}
+
+if [ -e ./build.sh ] ; then
+ cp -f ./build.sh ${INSTALL_ROOT}
+fi
+
+CUR_DIR=`pwd`
+cd ${INSTALL_ROOT}
+check_jb build.sh -o -c -d -v 0 -p $INSTALL_ROOT KERNEL
+
+# create environment for the built binaries
+cd $CUR_DIR
+./KERNEL_BIN.sh print_env $INSTALL_WORK $SOURCE_DIR $INSTALL_ROOT $PRODUCT_SEQUENCE $prod_bin
+}
+