[ESS] ESS installation with cygwin needs unsetting DISPLAY
Nitin Jain
nj7w at yahoo.com
Tue Sep 4 23:32:03 CEST 2007
Thanks Rodney.
This means that for now, I should use either native xemacs or unset the DISPLAY every time I start cygwin.
Best,
Nitin
--------------------------
Nitin Jain
----- Original Message ----
From: Rodney Sparapani <rsparapa at mcw.edu>
To: ess-help at stat.math.ethz.ch
Sent: Tuesday, September 4, 2007 2:23:56 PM
Subject: Re: [ESS] ESS installation with cygwin needs unsetting DISPLAY
Nitin Jain wrote:
> Dear all,
>
> I am facing a problem in ESS installation when using with cygwin. Here are the steps that I followed:
>
> - unzipped .tgz ess file
> - added the ess path in init.el
> (load "/cygdrive/C/cygwin/usr/share/xemacs/xemacs-packages/lisp/ess-5.3.5/lisp/ess-site")
> - Modiffied /usr/share/xemacs/xemacs-packages/lisp/ess-5.3.5/lisp/essd-r-args.el file to comment the tooltip lines:
> (eval-when-compile
> (require 'tooltip)); for tooltip-show
>
>
> When I start cygwin and type,
> xemacs a.R -f R &
> it asks me for the starting R directory to which I press enter and then I get the message "Process R is not running"
>
> However, when I open another xterm and do: "unset DISPLAY", the above command works fine (though several times, it hangs and then i have to restart cygwin).
>
> The difference in the two xemacs sessions is that 1st one (with default DISPLAY set to 127.0.0.1:0.0), xemacs opens with grey background (much like default unix xemacs) whereas after unsetting DISPLAY, I get xemacs with white background (much like native xemacs on windows).
>
> Is this a bug or am I missing something?
>
> Thanks.
>
> Best,
> Nitin
>
This behavior is most likely a side-effect of ESS. ESS can be run under
2 different "flavors" on Windows. 1. vanilla, native Windows or 2.
tutti-frutti: Unix-like Cygwin. 1. should work best if you are working
with R/S-plus or SAS locally, i.e. Windows native versions of those
packages. 2. will work best if you are running these packages remotely,
i.e. ESS-elsewhere. At the time that this was designed, native Windows
xemacs and Unix-like Cygwin xemacs were separate installs so you could
have both. But, it seems that recently, Cygwin has managed to include
both flavors in one install. In the future, this will make supporting
ESS on Windows easier (assuming GNU emacs is similarly contrived by
Cygwin). And, I'm guessing, that it looks for the DISPLAY environment
variable to decide your favorite flavor. YMMV
Rodney
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