Upstream status: https://github.com/ghollisjr/cl-ana/pull/49 From 491ba1127126ca6209b7c4dc1485377c7f772f7e Mon Sep 17 00:00:00 2001 From: Philip Taron Date: Mon, 16 Feb 2026 12:32:04 -0800 Subject: [PATCH] Fix type error in fixed-mem-cache for SBCL 2.6.0 In cl-ana.makeres, the fixed-mem-cache function uses (setf (cdr (last cache)) (list id)) where cache can be nil (initial state or after popping all elements). (last nil) returns nil, making (setf (cdr nil) ...) undefined. SBCL 2.6.0's stricter type inference catches this as a type conflict, causing COMPILE-FILE-ERROR. Replace with nconc which handles the nil case correctly. --- makeres/makeres.lisp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/makeres/makeres.lisp b/makeres/makeres.lisp index 1999ac4..373bb57 100644 --- a/makeres/makeres.lisp +++ b/makeres/makeres.lisp @@ -936,8 +936,8 @@ compressed storage, but alas." (> total maxmem)) do (unload-target (pop cache)))) (load-target id) - (setf (cdr (last cache)) - (list id))))))))) + (setf cache + (nconc cache (list id)))))))))) ;; Caching utility functions: