At least in emacs24, this removes the "site-lisp" directories from the
load path in addition to enforcing --no-site-lisp --no-init-file.
This works around a slightly mysterious bug on Debian that causes
test-lib.el not to load when there is cl-lib.el(c) in some site-lisp
directory. It should be harmless in general since we really don't
want to load any files from addon packages to emacs.
# Here's what we are using here:
#
-# --no-init-file Don't load users ~/.emacs
-#
-# --no-site-file Don't load the site-wide startup stuff
+# --quick Use minimal customization. This implies --no-init-file,
+# --no-site-file and (emacs 24) --no-site-lisp
#
# --directory Ensure that the local elisp sources are found
#
# --load Force loading of notmuch.el and test-lib.el
-exec ${TEST_EMACS} --no-init-file --no-site-file \
+exec ${TEST_EMACS} --quick \
--directory "$TEST_DIRECTORY/../emacs" --load notmuch.el \
--directory "$TEST_DIRECTORY" --load test-lib.el \
"\$@"