Re: your vc-hg.el change

[Chong Yidong <cyd@stupidchicken.com>]

Glenn Morris <rgm@gnu.org> writes:

>> +2008-11-22  Glenn Morris  <rgm@gnu.org>
>> +
>> +       * vc-hg.el (vc-hg-program): New option.
>> +       (vc-hg-state, vc-hg-working-revision, vc-hg-command):
>> +       Use vc-hg-program rather than hard-coded "hg".
>> 
>> Why was it done?  Did any user request it?
>
> Yes.
>
> http://lists.gnu.org/archive/html/emacs-devel/2008-10/msg00286.html

Norman Gray wrote:

> > Within vc-hg.el, the "hg" command is hard-wired as that precise
> > string, rather than being configurable. This is awkward for me at
> > least, since I organise myself so that tools (potentially in
> > multiple different versions) are kept out of /usr/local and similar,
> > and paged in and out via per-shell adjustments to PATH. But that
> > means that hg typically isn't on the default path that emacs picks
> > up.

This exotic setup is probably not a reason to change vc-hg, especially
when there is no equivalent in the other VC backends.  Maybe OP can come
up with a different way to do what he wants (e.g., advising the VC
functions to swap in the correct path).