I work with Emacs 24 (Emacs-pretest-24.0.91-universal-10.6.7 from http://emacsformacosx.com/builds) on Mac OS X 10.7.3 with R 2.15. When I open a new R buffer, the buffer name is */usr/local/bin/R*. For all other buffers I receive a reasonable file name, but for R buffers, the filename always contains this path. This is quite annoying if you have multiple R buffers open and you display a buffer menu (for example). Then you see a lot of buffers displayed as */usr/local/... and you can't see which of the buffers corresponds to which R process.
Is this a problem of the Mac or just my setup?
The only thing I can image as a reason for this is the following. To call R from the console (as from within Emacs), I defined a symbolic link in /usr/local/bin pointing to the correct path where R is installed. This link I called "R".
cd /usr/local/bin
sudo ln -s /Library/Frameworks/R.framework/Resources/bin/R R
I could imagine that the emacs buffer name is determined from the link /usr/lcoal/bin/R but I don't know how to fix this since without the link I can't start R. On Ubuntu, I simply see the buffer name R (or R[2],... etc.), it would be great to have the same on Mac OS.
Update
inferior-R-program-name is a variable defined in `ess-custom.el'.
Its value is "/usr/local/bin/R"
Original value was "R"
ess-dialect is a variable defined in `ess-custom.el'.
Its value is "R"
Local in buffer */usr/local/bin/R*; global value is "R"
Automatically becomes buffer-local when set in any fashion.
ess-use-inferior-program-name-in-buffer-name is a variable defined in `ess-custom.el'.
Its value is t
Original value was nil