find-function & load-history

Just because I'm a curious old soul, and this has been bugging me for a while now... By default, 'M-x find-function RET abbrev-mode RET'[1] shows a buffer with /usr/local/src/xemacs-21.5/lisp/abbrev.el in it. And if that file doesn't exist, an error. How can I make it show me: /usr/local/lib/xemacs-21.5-b0/lisp/abbrev.el ie, the installed version? Footnotes: [1] Just a randomly chosen defun in core lisp to make the point. -- |---<Steve Youngs>---------------<GnuPG KeyID: 9E7E2820>---| | XEmacs - It's not just an editor. | | It's a way of life. | |------------------------------------&lt;youngs(a)xemacs.org&gt;---|