"This is like `define-derived-mode' without the PARENT argument.
The parent is always `compilation-mode' and the customizable `compilation-...'
variables are also set from the name of the mode you have chosen,
-by replacing the first word, e.g `compilation-scroll-output' from
+by replacing the first word, e.g., `compilation-scroll-output' from
`grep-scroll-output' if that variable exists."
(let ((mode-name (replace-regexp-in-string "-mode\\'" "" (symbol-name mode))))
`(define-derived-mode ,mode compilation-mode ,name