Configuring faces in LaTeX mode

Question

I use alot the M-o i shortcut (which, according to the key description, runs the command facemenu-set-italic) to emphasize parts of my text. Over the years I have changed several computers (hence OSes and distributions) and I notice that depending on the overall configuration, this command wraps the selected text (... below) either in

\emph{...}

or in

{\em ...}

For several (more or less technical or trivial) reasons, I prefer \emph{...} to {\em ...}, but in my current configuration I get the latter. I tried to find where this is configured, but without any success. Any ideas?

Answer 1

You have to customize the variable tex-latex-face-alist adding this code to .emacs

(with-eval-after-load "tex-mode"
  (setq tex-latex-face-alist `((italic . "\\emph{ ")
                               ,@tex-face-alist)))