maxima debug feature? - or how to accomplish same



>  The reason I say this is because you can run the Maxima package with
>  the Lisp reader on inside of, eg. SLIME. This is an Emacs mode that
>  gives you gdb-like features to step through code (more precisely, it
>  is similar to gdb-mode in Emacs).

can you please advice, 
if I want to have a possibility to do  step-by-step through code, should I compile Maxima with some special options?

i.e.
(proclaim '(optimize (safety 0) (debug 4)))

so LISP could have symbols, etc, to be displayed?

How this "debugging" mode turned on?

Best regards,
Vadim.