Is there a mechanism by which we can declare code to be eliminated when compiling with (declare (not safe))?
I haven't been able to find anything, and it would be very nice to have something like (when-declare (safe) stuff ...),
which would be eliminated in unsafe compilation.
The context is that I want to add a contract system to Gerbil, but I don't want the runtime checks to persist when
compiling with (not safe).

-- vyzo