From: Michael Albinus <michael.albinus@gmx.de>
To: pmlists@free.fr (Peter Münster)
Cc: help-gnu-emacs@gnu.org
Subject: Re: dbus: "(setenv ...)" not the same as "export ...=..."
Date: Sun, 30 Oct 2011 09:51:55 +0100 [thread overview]
Message-ID: <87d3deq2tw.fsf@gmx.de> (raw)
In-Reply-To: <87wrbnz7le.fsf@micropit.couberia.bzh> ("Peter \=\?utf-8\?Q\?M\?\= \=\?utf-8\?Q\?\=C3\=BCnster\=22's\?\= message of "Sun, 30 Oct 2011 01:44:13 +0200")
pmlists@free.fr (Peter Münster) writes:
> Hello,
Hi,
> Emacs is the only program, that requires the DBUS_SESSION_BUS_ADDRESS
> environment variable,
Nope. $DBUS_SESSION_BUS_ADDRESS is used to identify the respective D-Bus
session bus, for any application connecting to D-Bus. Other applications
might start the session bus if they don't find it. In Emacs we have
discarded this feature, see <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6579>
for the reasoning.
> so instead of setting it in the global environment,
> I prefer to set it in my .emacs file:
>
> (when window-system
> (unless (getenv "DBUS_SESSION_BUS_ADDRESS")
> (setenv "DBUS_SESSION_BUS_ADDRESS" "autolaunch:"))
> (require 'notifications))
>
> But it does not work: D-Bus error: "No connection to bus", :session
>
> The workaround is to start emacs like this:
> DBUS_SESSION_BUS_ADDRESS=autolaunch: emacs
>
> Could anybody explain, why emacs needs the DBUS_SESSION_BUS_ADDRESS (or
> why other programs don't need it), and why setting it with (setenv ...)
> does not work?
I do not see the use case for starting the D-Bus session bus from inside
Emacs. In this case, you could only communicate with D-Bus-aware
applications which have been started from inside Emacs as well, other
applications won't see your session bus.
> TIA for any hints!
> P.S.: I don't know, where the dbus is started on my system, the parent
> PID is 1. Perhaps from xinit or fvwm, how can I know?
Best regards, Michael.
PS: I'm not able to respond for the next days, we're just starting to go
to the Baltic sea for some relaxed days. Being back next Sunday.
next prev parent reply other threads:[~2011-10-30 8:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-29 23:44 dbus: "(setenv ...)" not the same as "export ...=..." Peter Münster
2011-10-30 8:51 ` Michael Albinus [this message]
2011-10-30 15:08 ` Peter Münster
2011-11-07 10:07 ` Michael Albinus
2011-11-02 4:56 ` Kevin Rodgers
2011-11-02 21:54 ` Peter Münster
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