Well, Packages are a reader-hack, so you couldn't express them with parenthesis, although you should be able to IMHO. #+FOO (bar) This could almost be: (when

Well, Packages are a reader-hack, so you couldn't express them with parenthesis, although you should be able to IMHO. #+FOO (bar) This could almost be: (when (member FOO features) (bar)) Just wrap it in an eval-when.