On 05/05/2015 10:50 AM, Stefan Monnier wrote:
>>>> +      (setf nmark (marker-position saved-mark))
>>> ^^^^
>>> Old habits die hard.
>> Should `setf' be avoided?  Is it only when `setq' would do instead?
> 
> Sorry, I guess `setf' work as well, here.  I've just been bitten by
> bootstrapping problems too many times, but simple.el should be late
> enough that it can't be a problem.

There ought to be a file-local variable marking early-loadup files that
tells the compiler to warn about certain otherwise-safe facilities.