diff --git a/tools/build.sh b/tools/build.sh
index 410312e8520..74cb8929445 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -38,7 +38,7 @@ function build_board()
 {
   echo -e "Build command line:"
   echo -e "  ${TOOLSDIR}/configure.sh -e $*"
-  echo -e "  make -C ${NUTTXDIR} EXTRAFLAGS=-Wno-cpp ${@:2}"
+  echo -e "  make -C ${NUTTXDIR} EXTRAFLAGS=[-Wno-cpp] ${@:2}"
   echo -e "  make -C ${NUTTXDIR} savedefconfig"
 
   if [ ! -f "${ROOTDIR}/prebuilts/kconfig-frontends/bin/kconfig-conf" ]; then
@@ -56,9 +56,16 @@ function build_board()
   fi
 
   ARCH=`sed -n 's/CONFIG_ARCH="\(.*\)"/\1/p' ${NUTTXDIR}/.config`
+
+  EXTRAFLAGS=-Wno-cpp
+  if [ $ARCH = "xtensa" ]; then
+    export XTENSAD_LICENSE_FILE=28000@10.221.64.91
+    EXTRAFLAGS=""
+  fi
+
   export PATH=${ROOTDIR}/prebuilts/gcc/linux/$ARCH/bin:$PATH
 
-  if ! make -C ${NUTTXDIR} EXTRAFLAGS=-Wno-cpp ${@:2}; then
+  if ! make -C ${NUTTXDIR} EXTRAFLAGS=$EXTRAFLAGS ${@:2}; then
     echo "Error: ############# build ${1} fail ##############"
     exit 2
   fi