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Subject: Re: emacsclient from cygwin distro does not work with Cygwin emacs
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From: Leo <leoslists AT letterboxes DOT org>
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Date: Thu, 15 Mar 2012 13:44:01 +1100
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On 15/03/2012, at 2:51 AM, Ken Brown <kbrown AT cornell DOT edu> wrote:

> On 3/14/2012 6:19 AM, Leo wrote:
>> emacsclient works fine when I unset the environment variable
>> "EMACS_SERVER_FILE". This holds true regardless what server-auth-dir is
>> set to.
>> 
>> In order to produce the error, do the following:
>> 
>> (1) start emacs -Q.
>> (2) execute in the scratch buffer
>> (require 'server)
>> 
>> (setq server-auth-dir "~/")
>> 
>> (server-start)
>> 
>> (3) go to a cygwin bash (outside emacs)
>> 
>> (4) set EMACS_SERVER_FILE to "~/server"
>> 
>> (5) run the command
>> 
>> emacsclient ~/.emacs
>> 
>> and you get the error message from the original post, but you'd expect
>> to get in emacs a buffer displayed with the .emasc file.
> 
> You forgot to provide the pointers to the documentation that I requested, explaining why you would expect this.  The documentation for `server-auth-dir' says "We only use this if `server-use-tcp' is non-nil.  Otherwise we use `server-socket-dir'."
> 
> You didn't set `server-use-tcp' in your instructions above.  If I insert
> 
>  (setq server-use-tcp t)
> 
> before
> 
>  (server-start)
> 
> in your step (2), evaluating (server-start) gives me the error message "The directory `~' is unsafe".  So it looks like emacsclient is working as expected.
> 
> Is there a reason you want emacsclient to use TCP instead of (the default) local sockets?  I suspect this is due to your previous use of native Windows emacs.  Here's a quote from the emacsclient info file:
> 
>     An Emacs server usually uses an operating system feature called a
>     "local socket" to listen for connections.  Some operating systems,
>     such as Microsoft Windows, do not support local sockets; in that
>     case, Emacs uses TCP instead. 

Hi Ken

Thanks a lot for your explanation. That exactly seems to happen!

Now I was able to set it up, so that it works under Cygwin/X as well. 

Cheers, Leo

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