Re:Lisp and Haskell (2017)
by jose_zap on Sunday July 15, 2018 @03:26AM
(#17534181)
FWIW the first comment in that blog post shows that at the time of writing the post, the compiler could not detect that error.
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My suspicion is the author just didn't know how to use sbcl for this. I quickly tried this and did not receive any such message.