Function: package--library-stem
package--library-stem is a byte-compiled function defined in
package.el.gz.
Signature
(package--library-stem FILE)
Source Code
;; Defined in /usr/src/emacs/lisp/emacs-lisp/package.el.gz
(defsubst package--library-stem (file)
(catch 'done
(let (result)
(dolist (suffix (get-load-suffixes) file)
(setq result (string-trim file nil suffix))
(unless (equal file result)
(throw 'done result))))))