This is the new remote target simulation directory.
Copy to your own writable directory the following trees:

cp -r source  yourdir/.
cp -r example yourdir/.
cp -r $OSTYPE  yourdir/.  (i.e. the one for your host env.)

In each of the OS-specific directories is a README file.

If you have /usr/bin/csh  this file is executable (!)

You can do:
README 	             for instructions
README make          to build a sample target for your host machine
README clean         to remove temporary files from make.

Please also check that your $sdtdir variable is set
(if not, there are instructions in the README file)