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by weavie 2668 days ago
If I recall somewhere around SBCL 1.2 they changed the way the backquote worked (totally fine for them to do that as it wasn't specified in the standard..) which broke the Let over Lambda macro.

I think CCL still works.

The code here should fix the problems : https://github.com/thephoeron/let-over-lambda

Note, it's been a while since I looked at it so I could have some of the details wrong. The book is still well worth reading to help you understand the possibilities with a programmable programming language, but just bear in mind the various caveats..