cp -R ./extlibs/mbedtls/ $sourcedir/tmp/con/mbedtls/
cp -R ./extlibs/timer/ $sourcedir/tmp/con/extlibs/
cp -R ./extlibs/libcoap/ $sourcedir/tmp/con/extlibs/
cp -R ./extlibs/mbedtls/ $sourcedir/tmp/con/mbedtls/
cp -R ./extlibs/timer/ $sourcedir/tmp/con/extlibs/
cp -R ./extlibs/libcoap/ $sourcedir/tmp/con/extlibs/