Re: Bugs related to buffer-local tags-file-name

[Dmitry Gutov]

Hi!

On 22.11.2016 20:53, Josiah Schwab wrote:

> There is a collection of issues related to setting buffer-local values
> of tags-file-name (either directly with setq-local or via
> visit-tags-table).  Many of these have been around for a long time.
>
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=158
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=17326
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=23164
>
> These bugs (and bugs merged into them) have clear steps to reproduce the
> issues, as well as decent analysis (and in some cases proposed patches).

If you could try the one-line patch from 
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=23164#23 and verify which 
of the bugs it fixes (and whether it makes anything worse), it would 
very helpful.

> This morning, I reproduced a number of these with current release
> version of (emacs 25.1) and the development version (git
> c542fab20f53374dd0c71dce949ef370fc76fa48).
>
> Could someone who understands etags.el take a look at these bugs?  It
> seems possible that some minor refactoring might kill several of these
> at once.

I'm not sure such someone exists anymore. Also see my comment in 
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=21443#28.

Dmitry.