From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#23779: 25.0.95; consing "SHELLVAR" onto process-environment doesn't remove it from subprocess env Date: Sat, 18 Jun 2016 10:51:57 +0300 Message-ID: <83fusbaq8y.fsf@gnu.org> References: <837fdocmrl.fsf@gnu.org> <962d42ee-847c-507e-d457-2d6f9a38e955@yandex.ru> <83wplnc3t8.fsf@gnu.org> <83vb17c2z3.fsf@gnu.org> <91dddf53-b680-5568-cc9e-3f54859c8049@yandex.ru> <83twgrbv8r.fsf@gnu.org> <54d442d1-0053-6966-9cd6-9540448eb31f@yandex.ru> <83mvmjbmpu.fsf@gnu.org> <0b5653ce-1d70-4d5c-2c28-ee8cba1f9f1c@yandex.ru> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1466236351 25947 80.91.229.3 (18 Jun 2016 07:52:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 18 Jun 2016 07:52:31 +0000 (UTC) Cc: 23779@debbugs.gnu.org, eggert@cs.ucla.edu, schwab@linux-m68k.org, npostavs@users.sourceforge.net To: Dmitry Gutov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Jun 18 09:52:17 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bEB3A-0001vf-7B for geb-bug-gnu-emacs@m.gmane.org; Sat, 18 Jun 2016 09:52:16 +0200 Original-Received: from localhost ([::1]:33505 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bEB39-0006iw-HC for geb-bug-gnu-emacs@m.gmane.org; Sat, 18 Jun 2016 03:52:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:43212) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bEB30-0006i0-R9 for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 03:52:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bEB2w-0003jH-K4 for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 03:52:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:60589) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bEB2w-0003jD-GW for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 03:52:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bEB2w-0007ol-9U for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 03:52:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 18 Jun 2016 07:52:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 23779 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 23779-submit@debbugs.gnu.org id=B23779.146623627429970 (code B ref 23779); Sat, 18 Jun 2016 07:52:02 +0000 Original-Received: (at 23779) by debbugs.gnu.org; 18 Jun 2016 07:51:14 +0000 Original-Received: from localhost ([127.0.0.1]:44693 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bEB27-0007nG-6a for submit@debbugs.gnu.org; Sat, 18 Jun 2016 03:51:14 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:52173) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bEB26-0007n4-66 for 23779@debbugs.gnu.org; Sat, 18 Jun 2016 03:51:10 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bEB1z-0003gk-Nj for 23779@debbugs.gnu.org; Sat, 18 Jun 2016 03:51:04 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:53543) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bEB1s-0003fo-DV; Sat, 18 Jun 2016 03:50:56 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1049 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1bEB1q-0006dq-CU; Sat, 18 Jun 2016 03:50:54 -0400 In-reply-to: <0b5653ce-1d70-4d5c-2c28-ee8cba1f9f1c@yandex.ru> (message from Dmitry Gutov on Sat, 18 Jun 2016 00:26:28 +0300) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:119715 Archived-At: > Cc: npostavs@users.sourceforge.net, 23779@debbugs.gnu.org, > schwab@linux-m68k.org, eggert@cs.ucla.edu > From: Dmitry Gutov > Date: Sat, 18 Jun 2016 00:26:28 +0300 > > On 06/17/2016 11:10 PM, Eli Zaretskii wrote: > > > What do I do if I do want to change the original one? > > That's what I was asking: are there scenarios where someone would want > to do that? If they're very exceptional, if might be fine if the caller > has to manipulate the process-environment list on a lower level themselves. I don't think we have good means of finding that out. In general, a use case that was possible (and for many years at that) should remain possible, unless there's clear and hard evidence that it's no longer valid, something I very much doubt we have in this case. > > Not sure what that means, or why do you ask that. > > Do you know which value > > (setq process-environment (cons "PAGER=" ...)) > > assigns to the environment variable PAGER? An empty value, AFAIK.