[ESS] Upgraded to El Capitan (OS X 10.11) and ESS Cannot Find R

[Stephen Eglen]

hi Vincent/Marc,

Is it worth adding this to the Emacs.app that Vincent kindly bundles?

https://github.com/purcell/exec-path-from-shell

(apologies if you already have this).

Stephen

On Thu, Oct 01 2015, Vincent Goulet wrote:

>> Le 1 oct. 2015 à 15:54, Marc Schwartz <marc_schwartz using me.com> a écrit :
>> 
>> Hi all,
>> 
>> Using ess-15.09 with Emacs 24.5, which worked fine on OS X Yosemite until yesterday.
>> 
>> I know that this has been reported on prior versions of OS X and have attempted the proposed solutions, but I am at a loss to figure this one out at the moment.
>> 
>> I upgraded to the new El Capitan yesterday and now ESS cannot find R. I get the familiar:
>> 
>>  no such file or directory, R
>> 
>> when using M-x R.
>
> Same here.
>
>> I did a re-install of R as well, along with XQuartz.
>
> Reinstalling R 3.2.2 fixed the issue for me. I guess this reinstated the symlink in /usr/local/bin.
>
>> R.app (the standard OS X GUI) finds R without issue and I can run R from the OS X shell (Terminal). 
>> 
>> When I use:
>> 
>>  M-x shell
>> 
>> in Emacs, I can then run R without issue within the shell. So the $PATH seems to be picked up correctly in those settings to /usr/local/bin/R.
>> 
>> I do have the location added to $PATH in my ~/.bash_profile and I have a line in my .emacs:
>> 
>>  (setenv "PATH" "/usr/texbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin")
>> 
>> so the path is set there as as well, so that Emacs will pick up $PATH when run from the dock, which I know has been an issue.
>
> Did you check the Emacs variable exec-path? I think this one is the key. My distribution has a patch to correctly import the shell environment at Emacs startup. For example, I have:
>
> exec-path is a variable defined in `C source code'.
> Its value is
> ("/opt/local/bin/" "/opt/local/sbin/" "~/bin/" "/usr/local/bin/" "/usr/bin/" "/bin/" "/usr/sbin/" "/sbin/" "/opt/X11/bin/" "/Library/TeX/texbin/" "/Applications/Emacs.app/Contents/MacOS/bin-x86_64-10_9/" "/Applications/Emacs.app/Contents/MacOS/libexec-x86_64-10_9/" "/Applications/Emacs.app/Contents/MacOS/libexec/")
>
> Hope this helps!
>
> v.
>
>> Anyone else upgrade yet and/or have recommendations based upon fresh eyes?
>> 
>> Thanks!
>> 
>> Marc Schwartz
>> 
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