anchor.diff:          -                   (<= (file-write-date fasl) newest))
           -          (delete-file fasl))))))
           +  (declare (ignore swank-files contrib-files fasl-dir)))
  -         
  +
            (defun compile-contribs (&key (src-dir (contrib-dir *source-directory*))
                                       (fasl-dir (contrib-dir *fasl-directory*))
           EOD
  
positive.code:         @@ -155,7 +155,7 @@
                            ,(unique-dir-name)))
              (user-homedir-pathname)))
           
          -(defvar *fasl-directory* (default-fasl-dir)
          +(defvar *fasl-directory* #P"$out/lib/common-lisp/swank/fasl/"
             "The directory where fasl files should be placed.")
           
           (defun binary-pathname (src-pathname binary-dir)
          @@ -277,12 +277,7 @@
                            (contrib-dir src-dir))))
           
           (defun delete-stale-contrib-fasl-files (swank-files contrib-files fasl-dir)
          -  (let ((newest (reduce #'max (mapcar #'file-write-date swank-files))))
          -    (dolist (src contrib-files)
  
negative.code:       '';
        preInstall = ''
          type gcc
          mkdir -p "$out/lib/common-lisp/"
          cp -r . "$out/lib/common-lisp/cl-fuse/"
          "gcc" "-x" "c" "$out/lib/common-lisp/cl-fuse/fuse-launcher.c-minus" "-fPIC" "--shared" "-lfuse" "-o" "$out/lib/common-lisp/cl-fuse/libfuse-launcher.so"
        '';
      };
    };
  