Pervasives.compare != Pervasives.compare

[Elnatan Reisner <elnatan@cs.umd.edu>]

I was surprised when I noticed the following behavior:

         Objective Caml version 3.11.2

# compare == compare;;
- : bool = false
# let f = compare;;
val f : 'a -> 'a -> int = <fun>
# f == compare;;
- : bool = false
# f == f;;
- : bool = true
# let g = compare;;
val g : 'a -> 'a -> int = <fun>
# f == g;;
- : bool = false

Playing around a bit more, I seemed to find that every time you access  
an 'external' function, you get a distinct reference (is there a  
better term?) to it. This seems a bit odd to me. Can someone explain?

Thanks,

Elnatan