> Should be doable to add it.  I'm personally somewhat ambivalent about
> this change, and I'm pretty sure some other CHICKEN maintainers will be
> somewhat strongly against it.

That's okay. It would be good to hear their opinion regardless.
Constructive criticism is valuable.

> Where would this go, though?  A SRFI, or should it be part of R8RS?
> It's pretty core to the language.

I thought it would first become a SRFI, and if it proves popular then be
standardized in R8RS (if not popular, it could remain a SRFI for the few
implementations who want it).