(progn
  (setq minibuffer-prompt-properties '(read-only t cursor-intangible t face
minibuffer-prompt))

  (defun turn-on-cursor-intangible-mode ()
    "Turns on cursor-intangible-mode."
    (interactive)
    (cursor-intangible-mode 1))
  (define-globalized-minor-mode global-cursor-intangible-mode
cursor-intangible-mode turn-on-cursor-intangible-mode)

  (global-cursor-intangible-mode 1))