What Lisp do you use?  CommonLisp variables are lexically scoped by
default.  Dynamic scoping is available on a per-symbol basis via a
declaration.

O.K., o.k., I "use" "my own" somewhat of an Interlisp dialect. For
some strange reason I never really got to use Lisp much, I just
worked on implementing Lisp interpreter several times (as a hobby.)
But to go back on topic, the point is that I want to be able to
choose using dynamic scoping if I need to. Not that everyone should
have to use dynamic scoping even if it's a bother.

--
Gunther Schadow, M.D., Ph.D.                    gschadow@xxxxxxxxxxxxxxx
Medical Information Scientist      Regenstrief Institute for Health Care
Adjunct Assistant Professor        Indiana University School of Medicine
tel:1(317)630-7960                         http://aurora.regenstrief.org