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Subject:	Re: Package emacs-x11 depends on package dbus-x11, but fails to declare this
To:	cygwin AT cygwin DOT com
References:	<trinity-5b204260-ca4d-43e5-b164-36e5c35aefc4-1438698591820 AT 3capp-gmx-bs38> <55C0E86C DOT 6010805 AT cornell DOT edu> <55C4C230 DOT 9050204 AT dronecode DOT org DOT uk>
From:	Ken Brown <kbrown AT cornell DOT edu>
Message-ID:	<55C4F4FF.7020409@cornell.edu>
Date:	Fri, 7 Aug 2015 14:12:15 -0400
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On 8/7/2015 10:35 AM, Jon TURNEY wrote:
> On 04/08/2015 17:29, Ken Brown wrote:
>> On 8/4/2015 10:29 AM, Rainer Blome wrote:
>>> Package emacs-x11 depends on package dbus-x11 and should declare this,
>>> but apparently does not.
>>>
>>> Please change package emacs-x11 so that it declares its dependency on
>>> package dbus-x11.
>>>
>>> Details:
>>> When doing a fresh install of Cygwin 64bit, I selected xlaunch,
>>> "emacs-x11" and a few other packages and let the dependency
>>> satisfaction mechanism do its thing.
>>> This resulted in a working X Server
>>
>> I would say that it didn't result in a working X server in view of the
>> error message, "D-Bus library appears to be incorrectly set up".
>>
>> The documentation on the Cygwin/X home page (http://x.cygwin.com/) says
>> that you should install the xinit package in order to use the Cygwin X
>> server.  And xinit depends on dbus-x11.  But not everyone reads the
>> documentation before installing, so maybe xlaunch should require xinit.
>>
>> Jon?  Yaakov?
>
> Hmm... not sure about this.
>
> On the one hand, this is really a defect with xlaunch, which doesn't know enough
> to do all the things which xinit does (like starting a dbus session bus instance)
>
> On the other hand, just making xlaunch depend on dbus-x11 would solve this problem.

Yes, that would suffice for this particular problem.  I was just thinking that 
someone who installs xlaunch probably assumes that they'll get whatever they 
need for using Cygwin/X.  Since the user's guide 
(http://x.cygwin.com/docs/ug/setup.html#setup-cygwin-x-installing) describes 
xinit as required and xlaunch as optional, having xlaunch require xinit seems 
reasonable to me.

Ken

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