From: Xue Fuqiao <xfq.free@gmail.com>
To: Sebastian Wiesner <lunaryorn@gmail.com>
Cc: emacs-devel <emacs-devel@gnu.org>
Subject: Re: compile mode and $EMACS
Date: Sun, 11 Aug 2013 06:38:20 +0800 [thread overview]
Message-ID: <CAAF+z6ENtABx95zT2SEown=Ch1A8a_yebtL78N1yTeZi9WaMDg@mail.gmail.com> (raw)
In-Reply-To: <CALf2awR+W2Yy+GCU1nb6d4Hv0Ve_7Ru=asUBzn1ZLzd5WJn5Ng@mail.gmail.com>
On Sun, Aug 11, 2013 at 12:47 AM, Sebastian Wiesner <lunaryorn@gmail.com> wrote:
> Hello,
>
> I just discovered that compile mode adds "EMACS=t" to the process
> environment (see "compilation-start").
>
> What is this variable for? How is it supposed to be interpreted by
> the invoked program? Which programs do actually use it?
In (info "(emacs) Interactive Shell"):
Emacs sets the environment variable `INSIDE_EMACS' in the subshell
to `VERSION,comint', where VERSION is the Emacs version (e.g., `24.1').
Programs can check this variable to determine whether they are running
inside an Emacs subshell. (It also sets the `EMACS' environment
variable to `t', if that environment variable is not already defined.
However, this environment variable is deprecated; programs that use it
should switch to using `INSIDE_EMACS' instead.)
--
Best regards, Xue Fuqiao.
http://www.gnu.org/software/emacs/
next prev parent reply other threads:[~2013-08-10 22:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-10 16:47 compile mode and $EMACS Sebastian Wiesner
2013-08-10 22:38 ` Xue Fuqiao [this message]
2013-08-11 10:39 ` Sebastian Wiesner
2013-08-11 12:28 ` Pascal J. Bourguignon
2013-08-11 12:42 ` Sebastian Wiesner
2013-08-11 13:06 ` Andreas Schwab
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