Re: Thoughts on getting correct line numbers in the byte compiler's warning messages

[Stefan Monnier]

> Unfortunately, this isn't going to work.  There will be macros which do
> things like:
>
>     (cond ((eq (car form) 'bar) ....) .....)
>
> Here, (car form) is going to be #<symbol bar at 42>, so the eq is going
> to return nil.
[...]
> This isn't pretty.  If this modification of eq, memq, .... is too much
> to take, then I think the current approach is doomed to failure.

It's indeed a serious concern.  Maybe we can circumvent by changing
those pieces of code to use `eql` (and make sure `eql` consider
a symbol and its symbol-with-pos as equal, obviously).
Changing `eq` would better be avoided,


        Stefan