"
ls yocto/*/conf/machine/*.conf > /dev/null 2>&1
-# ls sources/meta-freescale-distro/conf/distro/fslc-*.conf > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo -e "
Supported machines: `echo; ls conf/*/conf/machine/*.conf \
echo
fi
+# indicate Yocto environment on shell prompt
+export PS1="[yocto] $PS1"
+
clean_up