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-rw-r--r--lisp/emacs-lisp/find-func.el21
1 files changed, 20 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/find-func.el b/lisp/emacs-lisp/find-func.el
index 9c4a3e9832c..0194af2e3a8 100644
--- a/lisp/emacs-lisp/find-func.el
+++ b/lisp/emacs-lisp/find-func.el
@@ -141,6 +141,15 @@ See the functions `find-function' and `find-variable'."
(dolist (suffix (get-load-suffixes) (nreverse suffixes))
(unless (string-match "elc" suffix) (push suffix suffixes)))))
+(defun find-library--load-name (library)
+ (let ((name library))
+ (dolist (dir load-path)
+ (let ((rel (file-relative-name library dir)))
+ (if (and (not (string-match "\\`\\.\\./" rel))
+ (< (length rel) (length name)))
+ (setq name rel))))
+ (unless (equal name library) name)))
+
(defun find-library-name (library)
"Return the absolute file name of the Emacs Lisp source of LIBRARY.
LIBRARY should be a string (the name of the library)."
@@ -148,13 +157,23 @@ LIBRARY should be a string (the name of the library)."
;; the same name.
(if (string-match "\\.el\\(c\\(\\..*\\)?\\)\\'" library)
(setq library (replace-match "" t t library)))
- (or
+ (or
(locate-file library
(or find-function-source-path load-path)
(find-library-suffixes))
(locate-file library
(or find-function-source-path load-path)
load-file-rep-suffixes)
+ (when (file-name-absolute-p library)
+ (let ((rel (find-library--load-name library)))
+ (when rel
+ (or
+ (locate-file rel
+ (or find-function-source-path load-path)
+ (find-library-suffixes))
+ (locate-file rel
+ (or find-function-source-path load-path)
+ load-file-rep-suffixes)))))
(error "Can't find library %s" library)))
(defvar find-function-C-source-directory