Hello, The following example from the Guile manual in subsection 7.5.9, fails for me both on Guile master 2.1.3.94-1a1c3 and Guile 2.0.11 from Debian Testing.
--8<---------------cut here---------------start------------->8--- (use-modules (srfi srfi-10)) (define-reader-ctor 'hash (lambda elems (let ((table (make-hash-table))) (for-each (lambda (elem) (apply hash-set! table elem)) elems) table))) (define (animal->family animal) (hash-ref '#,(hash ("tiger" "cat") ("lion" "cat") ("wolf" "dog")) animal)) --8<---------------cut here---------------end--------------->8--- The error is: --8<---------------cut here---------------start------------->8--- While compiling expression: ERROR: build-constant-store: unrecognized object #<hash-table 1c52c80 3/31> --8<---------------cut here---------------end--------------->8--- Thanks, -- Mathieu Lirzin