GNU bug report logs - #23769
25.0.95; Mode Line breakage in vc-git

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From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: 23769 <at> debbugs.gnu.org, Phillip Lord <phillip.lord <at> russet.org.uk>
Subject: bug#23769: 25.0.95; Mode Line breakage in vc-git
Date: Thu, 16 Jun 2016 12:54:54 -0400

On Thu, Jun 16, 2016 at 12:06 PM, Dmitry Gutov <dgutov <at> yandex.ru> wrote:
> Actually, this is better. The previous one broke vc-git. :)
>
> diff --git a/lisp/vc/vc-git.el b/lisp/vc/vc-git.el
> index f35c84d..2b827a3 100644
> --- a/lisp/vc/vc-git.el
> +++ b/lisp/vc/vc-git.el
> @@ -1451,6 +1451,7 @@ vc-git--call
>         (coding-system-for-write
>           (or coding-system-for-write vc-git-commits-coding-system))
>         (process-environment (cons "PAGER=" process-environment)))
> +    (setenv "GIT_DIR" nil)
>

I think you want (cons "GIT_DIR" ...) [without "="], using setenv can
modify the process-environment list by side-effect.

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