Forgot to include an example: See attached foo.el and try the following
compilations:
emacs -batch -q -f batch-byte-compile foo.el
20:07:00 tmp $
No warnings.
20:08:00 tmp $ emacs -batch -q -no-site-file -f package-initialize -f batch-byte-compile foo.el
Package cl is deprecated
20:08:23 tmp $