Re: shell-command causes problems with absolute/relative paths in TAGS

[Eli Zaretskii <eliz@gnu.org>]

> From: "David Chappaz" <david.chappaz@free.fr>
> Date: Fri, 6 Jan 2012 16:03:47 -0000
> 
> 
> > > The variable name depends on which shell you use. By default, only
> > > explicit-bash-args and explicit-sh-args are defined in emacs.
> > > On windows, cmdproxy.exe is the default shell, hence the variable name.
> > 
> > Well, I tried that on Windows with cmdproxy as the shell, and I still
> > don't see this variable.
> 
> Ah well I haven't been accurate enough.
> It's for the user to create this variable if they want to. It will only be
> used if its name perfectly matches that of the shell.
> See details in section 7.10 of
> http://www.gnu.org/software/emacs/windows/Sub_002dprocesses.html

Never mind, that variable is not needed for reproducing the problem.

> Surely emacs must be passing slightly different arguments to ctags (perhaps
> slashes in a different orientation), before and after the first call to
> call-process-region ?

Probably some environment variable rather than command-line argument.