In the IRC-channel, I was told that the undocumented, magic %output variable is deprecated. Instead, I should use #$output. But I couldn't get this done. I always ran into strange errors.
How should I change the following snippet? --8<---------------cut here---------------start------------->8--- (arguments '( #:tests? #f ; no tests #:make-flags (list "CC=gcc") #:phases (modify-phases %standard-phases (delete 'configure) (add-after 'unpack 'patch-makefile (lambda _ (substitute* "Makefile" (("/usr/local") %output))))))) --8<---------------cut here---------------end--------------->8--- The whole file is available here: http://ix.io/3T71/scm