GNU bug report logs - #21281
25.0.50.1 (getenv "HOSTNAME") fails

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Package: emacs;

Reported by: Andreas Röhler <andreas.roehler <at> easy-emacs.de>

Date: Mon, 17 Aug 2015 09:00:03 UTC

Severity: minor

Tags: notabug

Found in version 25.0.50.1

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 09:00:03 GMT) Full text and rfc822 format available.
Acknowledgement sent to Andreas Röhler <andreas.roehler <at> easy-emacs.de>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Mon, 17 Aug 2015 09:00:03 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 10:58:49 +0200

(getenv "HOSTNAME") returns nil at

GNU Emacs 25.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.24.23) of
2015-08-10

also affects

GNU Emacs 24.5.3 (i686-pc-linux-gnu, GTK+ Version 2.24.23) of 2015-04-20

;;;;;


echo $HOSTNAME from Bash withing Emacs  is fine
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 09:08:02 GMT) Full text and rfc822 format available.

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Zack Piper <zack <at> apertron.net>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 09:07:08 +0000

On Mon, Aug 17, 2015 at 10:58:49AM +0200, Andreas Röhler wrote:
> echo $HOSTNAME from Bash withing Emacs  is fine

Could you show us the output of "which emacs" it could be that emacs
is being run under a wrapper somehow, it's a low possibility but can
still happen.

-- 
Zack Piper <zack <at> apertron.net> http://apertron.net
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 09:19:02 GMT) Full text and rfc822 format available.

Message #11 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 11:18:40 +0200

Am 17.08.2015 um 11:07 schrieb Zack Piper:
> On Mon, Aug 17, 2015 at 10:58:49AM +0200, Andreas Röhler wrote:
>> echo $HOSTNAME from Bash withing Emacs  is fine
> Could you show us the output of "which emacs" it could be that emacs
> is being run under a wrapper somehow, it's a low possibility but can
> still happen.
>

# which emacs

tells

/usr/bin/emacs

Which is _not_ the emacs reported.

However, error occurs there too.

But another strange thing herewith:

C-u emacs-version says

GNU Emacs 24.3.1 (i686-pc-linux-gnu, GTK+ Version 3.10.7) of 2014-03-07 
on toyol, modified by Debian

where "toyol" if definitely not the HOSTNAME - and never set by me...

Thanks!
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 09:59:02 GMT) Full text and rfc822 format available.

Message #14 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> suse.de>
To: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
Cc: 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 11:58:26 +0200

Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:

> (getenv "HOSTNAME") returns nil at

Which means that the parent process did not export this variable to
Emacs.  Why do you think this is a bug?

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab <at> suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 10:00:03 GMT) Full text and rfc822 format available.

Message #17 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> suse.de>
To: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
Cc: 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 11:59:08 +0200

Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:

> where "toyol" if definitely not the HOSTNAME

There is no relation between these two names.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab <at> suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 10:56:01 GMT) Full text and rfc822 format available.

Message #20 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: Andreas Schwab <schwab <at> suse.de>
Cc: 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 12:55:27 +0200

Am 17.08.2015 um 11:58 schrieb Andreas Schwab:
> Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
>
>> (getenv "HOSTNAME") returns nil at
> Which means that the parent process did not export this variable to
> Emacs.  Why do you think this is a bug?
>
> Andreas.
>

Because $HOSTNAME exists in Bash but not in Emacs started from Bash.
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 11:08:02 GMT) Full text and rfc822 format available.

Message #23 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: Andreas Schwab <schwab <at> suse.de>
Cc: 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 13:07:26 +0200

Am 17.08.2015 um 11:59 schrieb Andreas Schwab:
> Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
>
>> where "toyol" if definitely not the HOSTNAME
> There is no relation between these two names.
>
> Andreas.
>

Which is a bug.

Having a look into defun emacs-version

it reads  emacs-build-system

which is set by function

system-name

which says:

Return the host name of the machine you are running on, as a string.

;;;

So it should not say something strange, unrelated to current machine.


Maybe due to shipping pre-compiled files?
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 11:18:01 GMT) Full text and rfc822 format available.

Message #26 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Nicolas Richard <youngfrog <at> members.fsf.org>
To: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
Cc: Andreas Schwab <schwab <at> suse.de>, 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 13:17:44 +0200

Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
> it reads  emacs-build-system

> So it should not say something strange, unrelated to current machine.

The docstring of emacs-build-system :
> Name of the system on which Emacs was built.

If you don't build your own emacs, it shouldn't be surprising that the
value is unrelated to your machine.

-- 
Nicolas
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 11:33:01 GMT) Full text and rfc822 format available.

Message #29 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: Andreas Schwab <schwab <at> suse.de>
Cc: 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 13:32:30 +0200

Am 17.08.2015 um 11:58 schrieb Andreas Schwab:
> Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
>
>> (getenv "HOSTNAME") returns nil at
> Which means that the parent process did not export this variable to
> Emacs.  Why do you think this is a bug?
>
> Andreas.
>

Writing

export HOSTNAME

into .bashrc and restart solved it.

Remains the question why this isn't needed w/ the bunch of other env's
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 11:42:01 GMT) Full text and rfc822 format available.

Message #32 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: Nicolas Richard <youngfrog <at> members.fsf.org>
Cc: Andreas Schwab <schwab <at> suse.de>, 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 13:40:50 +0200

Am 17.08.2015 um 13:17 schrieb Nicolas Richard:
> Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
>> it reads  emacs-build-system
>> So it should not say something strange, unrelated to current machine.
> The docstring of emacs-build-system :
>> Name of the system on which Emacs was built.
> If you don't build your own emacs, it shouldn't be surprising that the
> value is unrelated to your machine.
>

Maybe read previous posts before responding?
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 12:40:02 GMT) Full text and rfc822 format available.

Message #35 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Nicolas Richard <youngfrog <at> members.fsf.org>
To: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
Cc: Andreas Schwab <schwab <at> suse.de>, 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 14:39:10 +0200

Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
> Maybe read previous posts before responding?

I did. You expressed some surprise because `emacs-build-system' is
unrelated to your current machine, and I said it is meant that way.

-- 
Nico
Added tag(s) notabug. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> debbugs.gnu.org. (Mon, 17 Aug 2015 15:36:01 GMT) Full text and rfc822 format available.
bug closed, send any further explanations to 21281 <at> debbugs.gnu.org and Andreas Röhler <andreas.roehler <at> easy-emacs.de> Request was from Glenn Morris <rgm <at> gnu.org> to control <at> debbugs.gnu.org. (Mon, 17 Aug 2015 15:36:02 GMT) Full text and rfc822 format available.
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#21281; Package emacs. (Mon, 17 Aug 2015 15:38:02 GMT) Full text and rfc822 format available.

Message #42 received at 21281 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
Cc: 21281 <at> debbugs.gnu.org
Subject: Re: bug#21281: 25.0.50.1 (getenv "HOSTNAME") fails
Date: Mon, 17 Aug 2015 11:37:01 -0400

You should read about environment variables and shell variables.
This is nothing to do with Emacs.

http://stackoverflow.com/questions/6353065/hostname-set-in-environment-but-not-visible-to-gmake
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Tue, 15 Sep 2015 11:24:04 GMT) Full text and rfc822 format available.
This bug report was last modified 9 years and 276 days ago.

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