It'd be good if etags didn't tag defvar declaration forms, only actual
variable definitions.  For example it picks up

    (defvar message-indent-citation-function)

in longlines.el ahead of that variable's actual definition in
message.el, so M-. of that var goes to longlines.el first.

Perhaps something along the lines below.

I found the tripe-negative of while(!noninname) hard to follow and
thought a skip_name() could be clearer.  It might be shared by
Perl_functions, PHP_functions and Makefile_functions.

2010-02-18  Kevin Ryde  <user42@zip.com.au>

	* etags.c (Lisp_functions): Don't tag "(defvar foo)" declarations.
	(skip_name): New helper.