[ESS] R doesn't function in *R* buffer after "M-x R"
maechler at stat.math.ethz.ch
Mon Nov 16 13:19:02 CET 2009
>>>>> "p" == pleydell <pleydell at supagro.inra.fr>
>>>>> on Mon, 16 Nov 2009 11:18:11 +0100 writes:
>>> But as Emacs initializes exec-path from the active PATH
>>> when emacs starts, the correct solution really is to
>>> make sure R is in your PATH independently of emacs, and
>>> then, also M-x R will work fine.
>> Thanks for pointing that out; of course, the best
>> solution is to set PATH outside of Emacs!
p> I don't get it. I forgot to mentioned in my original post
p> that my .bashrc did contain the lines
p> PATH=$PATH:/home/david/lib/emacs23/bin export PATH
p> PATH=$PATH:/home/david/lib/R-2.10.0/bin export PATH
p> but this was not enough to get M-x R working in emacs. I
p> suppose emacs needs to know where to find .bashrc or that
p> I use bash and not some other shell, but I do use the
p> default location (~/.bashrc) so why was this not a
Aahh.... I think I know what's going on.
We are diverting from ESS here, definitely, but....
---> How do you start Emacs?
If you start emacs from a "terminal window",
I bet that everything will work
since PATH will be fine from the process where you start Emacs
--> Emacs will have the correct exec-path already.
HOWEVER, if you start emacs via menu / panel / ...
Emacs will take its environment (including PATH) from from
" Gnome / xdm/gdm Desktop - Enviroment "
has set the environment from.
In recent versions of Gnome/KDE/Linux/....
I think I have noticed, that indeed, a users ~/.bashrc
may *NOT* have been run at all for the applications that are
started via "mouse click".
Instead , the PATH and all (?) other environment variables are
set from something like
(e.g. by "sourcing" ~/.bash_profile or ~/.bashrc or ...)
I must say that I found this (change of behavior, a few versions of
an inifinitely unwise decision, since for me this practically
means that I do need to
- either start emacs from a terminal shell (which I do)
- or setup ~/.Xclients (or equivalently) correctly , e.g.,
having it itself do something like sourcing
~/.bash_profile and ~/bashrc
BTW: If some X11/GNOME/... guru on this list can shed a brigher
light on this than me, I'm more than happy to learn ....
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