(define-public sbcl-winner-mode
  (let ((commit "8fbed038e2e51d9034a9bb0273c10ae3e9221026"))
    (package
      (name "sbcl-winner-mode")
      (version (git-version "0.1" "1" commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/stumpwm/stumpwm-contrib.git")
               (commit commit)))
         (file-name (string-append name "-" version "-checkout"))
         (sha256
          (base32
           "1918axy82v7yj5j2igvp6220aibzk0yay6wdgqwgxf2b8mi13jmw"))))
      (inputs
       `(("sbcl-stumpwm" ,sbcl-stumpwm)))
      (arguments
       `(#:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'chdir-elisp
             ;; ‘winner-mode’ directory is not in root of the source.
             (lambda _
               (chdir "util/winner-mode"))))))
      (build-system asdf-build-system/sbcl)
      (home-page "https://github.com/stumpwm/stumpwm-contrib")
      (synopsis "External modules for StumpWM window manager")
      (description
       "This package provides external modules for StumpWM window manager.")
      (license #f))))