Re: [BUG] gtags-find-rtag doesn't work through GTAGSLIBPATH

[Shigio YAMAGUCHI]

Hello,
> - under emacs, gtags-find-rtag doesn't work through GTAGSLIBPATH

Yes. It is the specification of GLOBAL itself, it is unrelated to gtags.el.
Please see: http://lists.gnu.org/archive/html/bug-global/2006-08/msg00012.html

However, it is certain that the specification of GTAGSLIBPATH is not
neatly written in the manual. I feel it apologize very much.

> - to overcome this you must first gtags-find-tag and then at the point
> of definition
> execute again gtags-find-rtag ... which is not ok

This occurring is because emacs changes the current directory at each file.
You can fix the current project using gtags-visit-root command.

> - in the documentation for gtags usage is not very clear that GTAGSLIBPATH 
> work
> properly _only_ if the four G* files are found somewhere on the path
> to the root from
> the current point (that is if you are under some "project" files then
> GTAGSLIBPATH is follow)

In the present specification, you must invoke global(1) in a project.
Global(1) looks for GTAGS file aiming at the system's root directory.
If GTAGS file is not found then global(1) exits with a error message
"global: GTAGS not found.".  It is unrelated to GTAGSLIBPATH.
Are you proposing the change in this specification?

> - I use gtags for emacs to browse files and expect gtags to follow
> GTAGSLIBPATH to search
> other files despite that the four G* files are not present somewhere
> on the path to the root.

Is your wanting to do this?

+------------------------------
|#!/bin/sh
|for d in <directory list>
|do
|        (cd $d && global -a $*)
|done
+------------------------------
--
Shigio YAMAGUCHI <address@hidden>
PGP fingerprint: D1CB 0B89 B346 4AB6 5663  C4B6 3CA5 BBB3 57BE DDA3