Re: find-tag and partial completion mode -- Francisco, urgent!

[Francesco Potorti`]

>So the only problem is that etags does not work if we work to a
>sym-link to the TAGS file. We must use the path to the original TAGS
>file.

The problem is that the TAGS file is built using relative file names
(the usual way to do it), like this:
 etags *.[ch]

Consequently, if you make a link to TAGS from a different dir, the
relative names break.

Solutions have been mentioned:
- create one more TAGS file in your preferred dir and include the
  src/TAGS file with option -i
- create a TAGS file using absolute file names

However, in principle one could change etags.el so that, when the TAGS
file is in fact a symbolic link, it resolves relative file names with
respect to the base directory of the file, rather than the link.  I am
not sure that this is in fact a good idea but, if it is, it should be
eay to implement.

So: either we implement the change to etags.el that I suggest above, or
else I can add a couple of lines in the manual such as:

 Notice that, in the usual case of using relative file names, you should
 not use a symbolic link to a tags file in a different directory.