Change view-command in Emacs and AUCTeX (pdf mode)

Solution: to use `TeX-view-program-list' in order to define a new viewer description (which contains an Evince command without sync). This new command will override the description of Evince defined in `TeX-view-program-list-builtin' (which contains the problematic command TeX-evince-sync-view).

To do so :

M-x customize-variable <RET> TeX-view-program-list <RET>
  <INS>
    Name = Evince
    Command = evince --page-index=%(outpage) %o

I have no idea why this code in .emacs does not work:

(setq TeX-view-program-list '(("Evince" "evince --page-index=%(outpage) %o")))

Via configuration, I find the following works:

(defun my-LaTeX-mode()
  (add-to-list 'TeX-view-program-list '("Evince" "evince --page-index=%(outpage) %o"))
  (setq TeX-view-program-selection '((output-pdf "Evince")))
  ; Other mode specific config
  )
(add-hook 'LaTeX-mode-hook 'my-LaTeX-mode)