emacs options -batch and --no-site-file

[Roland Winkler]

Following BBDB bug report http://savannah.nongnu.org/bugs/?42482
we have had a discussion about how to call emacs in the Makefile
byte-compiling the lisp sources of BBDB.  The option -batch implies
--no-init-file, but it does not imply --no-site-file.  Is there a
reason for the latter?  Is there a "recommended strategy" which of
these options such a Makefile should / should not use?

Thanks,

Roland