(and (library-exists-p "vc-git")
(not (memq 'GIT vc-handled-backends))
(not (memq 'Git vc-handled-backends))
+ (not (memq 'git vc-handled-backends))
(setq vc-handled-backends (cons 'GIT vc-handled-backends)))
(trap (or mdw-fast-startup (require 'p4)))