Luis Henrique Gomes Higino schreef op di 01-02-2022 om 10:04 [-0300]: > +                      (substitute* "Makefile" > +                        (("/usr/local") (assoc-ref %outputs "out")))))) Is this necessary? The Makefile does 'PREFIX ?= /usr/local', so it would seem to me that overriding PREFIX by setting #:make-flags appropriately should be sufficient. Greetings, Maxime.