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by aidenn0 1316 days ago
Common lisp doesn't require tail call elimination either, fwiw
1 comments

But every implementation except clisp, ECL and clisp do it reliably.
sbcl doesn't always do it, depending on optimization settings, and clisp does do it when compiling; by "reliably" perhaps you meant "by default"?
I think you may have meant to substitute ABCL for one of those clisps?