[wes-exp]

I'm not a lisp pro (more like aspiring to be), but, for what it's worth, I think your use of eval is fine. It doesn't suffer from the "double evaluation" problem, and evaluation at compile time is actually what you want.

If you really want to get rid of eval in the macro, though, I suppose you could hard-code your loop to all-specs rather than attempt to supply the list as an argument. This would be contingent on all-specs being present in the compilation environment, via an eval-when or something.