* Makefile.in (install-package-ja): Compile and install lisp files first.

[elisp/gnus.git-] / lisp / gnus-util.el

diff --git a/lisp/gnus-util.el b/lisp/gnus-util.el
index 439dda0..e566243 100644 (file)
--- a/lisp/gnus-util.el
+++ b/lisp/gnus-util.el
@@ -483,14 +483,6 @@ If N, return the Nth ancestor instead."
                     (file-name-nondirectory file))))
   (copy-file file to))
 
-(defun gnus-kill-all-overlays ()
-  "Delete all overlays in the current buffer."
-  (let* ((overlayss (overlay-lists))
-        (buffer-read-only nil)
-        (overlays (delq nil (nconc (car overlayss) (cdr overlayss)))))
-    (while overlays
-      (delete-overlay (pop overlays)))))
-
 (defvar gnus-work-buffer " *gnus work*")
 
 (defun gnus-set-work-buffer ()
@@ -1032,6 +1024,22 @@ Entries without port tokens default to DEFAULTPORT."
       (while (search-backward "\\." nil t)
        (delete-char 1)))))
 
+(if (fboundp 'union)
+    (defalias 'gnus-union 'union)
+  (defun gnus-union (l1 l2)
+    "Set union of lists L1 and L2."
+    (cond ((null l1) l2)
+         ((null l2) l1)
+         ((equal l1 l2) l1)
+         (t
+          (or (>= (length l1) (length l2))
+              (setq l1 (prog1 l2 (setq l2 l1))))
+          (while l2
+            (or (member (car l2) l1)
+                (push (car l2) l1))
+            (pop l2))
+          l1))))
+
 (provide 'gnus-util)
 
 ;;; gnus-util.el ends here