diff --git a/configs/ntosd-dm320/nettest/setenv.sh b/configs/ntosd-dm320/nettest/setenv.sh
index 6090d4cea34..cfb438ce72c 100755
--- a/configs/ntosd-dm320/nettest/setenv.sh
+++ b/configs/ntosd-dm320/nettest/setenv.sh
@@ -32,15 +32,31 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-if [ "$(basename $0)" = "setenv.sh" ] ; then
+if [ "$_" = "$0" ] ; then
   echo "You must source this script, not run it!" 1>&2
   exit 1
 fi
 
-if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
-
 WD=`pwd`
-export BUILDROOT_BIN=${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin
-export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+# export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
 
 echo "PATH : ${PATH}"
diff --git a/configs/ntosd-dm320/nsh/setenv.sh b/configs/ntosd-dm320/nsh/setenv.sh
index a84e68884b6..005aa815305 100755
--- a/configs/ntosd-dm320/nsh/setenv.sh
+++ b/configs/ntosd-dm320/nsh/setenv.sh
@@ -32,15 +32,31 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-if [ "$(basename $0)" = "setenv.sh" ] ; then
+if [ "$_" = "$0" ] ; then
   echo "You must source this script, not run it!" 1>&2
   exit 1
 fi
 
-if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
-
 WD=`pwd`
-export BUILDROOT_BIN=${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin
-export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+# export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
 
 echo "PATH : ${PATH}"
diff --git a/configs/ntosd-dm320/ostest/setenv.sh b/configs/ntosd-dm320/ostest/setenv.sh
index a65be2677d0..75d6f0cd0d2 100755
--- a/configs/ntosd-dm320/ostest/setenv.sh
+++ b/configs/ntosd-dm320/ostest/setenv.sh
@@ -32,15 +32,31 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-if [ "$(basename $0)" = "setenv.sh" ] ; then
+if [ "$_" = "$0" ] ; then
   echo "You must source this script, not run it!" 1>&2
   exit 1
 fi
 
-if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
-
 WD=`pwd`
-export BUILDROOT_BIN=${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin
-export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+# export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
 
 echo "PATH : ${PATH}"
diff --git a/configs/ntosd-dm320/poll/setenv.sh b/configs/ntosd-dm320/poll/setenv.sh
index de3b64ea904..427ffe26ab9 100755
--- a/configs/ntosd-dm320/poll/setenv.sh
+++ b/configs/ntosd-dm320/poll/setenv.sh
@@ -32,15 +32,31 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-if [ "$(basename $0)" = "setenv.sh" ] ; then
+if [ "$_" = "$0" ] ; then
   echo "You must source this script, not run it!" 1>&2
   exit 1
 fi
 
-if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
-
 WD=`pwd`
-export BUILDROOT_BIN=${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin
-export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+# export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
 
 echo "PATH : ${PATH}"
diff --git a/configs/ntosd-dm320/thttpd/setenv.sh b/configs/ntosd-dm320/thttpd/setenv.sh
index 92ff91700e0..ea38c09a51a 100755
--- a/configs/ntosd-dm320/thttpd/setenv.sh
+++ b/configs/ntosd-dm320/thttpd/setenv.sh
@@ -32,15 +32,31 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-if [ "$(basename $0)" = "setenv.sh" ] ; then
+if [ "$_" = "$0" ] ; then
   echo "You must source this script, not run it!" 1>&2
   exit 1
 fi
 
-if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
-
 WD=`pwd`
-export BUILDROOT_BIN=${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin
-export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+# export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
 
 echo "PATH : ${PATH}"
diff --git a/configs/ntosd-dm320/udp/setenv.sh b/configs/ntosd-dm320/udp/setenv.sh
index 052413b089e..92995bee566 100755
--- a/configs/ntosd-dm320/udp/setenv.sh
+++ b/configs/ntosd-dm320/udp/setenv.sh
@@ -32,15 +32,31 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-if [ "$(basename $0)" = "setenv.sh" ] ; then
+if [ "$_" = "$0" ] ; then
   echo "You must source this script, not run it!" 1>&2
   exit 1
 fi
 
-if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
-
 WD=`pwd`
-export BUILDROOT_BIN=${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin
-export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+# export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
 
 echo "PATH : ${PATH}"
diff --git a/configs/ntosd-dm320/uip/setenv.sh b/configs/ntosd-dm320/uip/setenv.sh
index 988e0a1269e..33c252e1ecd 100755
--- a/configs/ntosd-dm320/uip/setenv.sh
+++ b/configs/ntosd-dm320/uip/setenv.sh
@@ -32,15 +32,31 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-if [ "$(basename $0)" = "setenv.sh" ] ; then
+if [ "$_" = "$0" ] ; then
   echo "You must source this script, not run it!" 1>&2
   exit 1
 fi
 
-if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
-
 WD=`pwd`
-export BUILDROOT_BIN=${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin
-export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+# export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
 
 echo "PATH : ${PATH}"