How to write emacs dependency ?

[TANIGUCHI Takaki <takaki@takaki.media-as.org>]

Hi, 

I am maintainer of darcsum package.

It works on 
 * emacs21 + gnus
 * emacs22 
 * emacs23
 * xmacs21

I can't find how to write Depends field. I want to write such as
"Depends: (emacs21, gnus) | emacs22 | emacs23 | xemacs21".
--
谷口 貴紀 (TANIGUCHI Takaki)    takaki@asis.media-as.org
http://takaki-web.media-as.org/ takaki@debian.org