+(eval-when-compile
+ (defvar xemacs-codename))
+
+(defun gnus-emacs-version ()
+ "Stringified Emacs version."
+ (let ((system-v
+ (cond
+ ((eq gnus-user-agent 'emacs-gnus-config)
+ system-configuration)
+ ((eq gnus-user-agent 'emacs-gnus-type)
+ (symbol-name system-type))
+ (t nil))))
+ (cond
+ ((eq gnus-user-agent 'gnus)
+ nil)
+ ((string-match "^\\(\\([.0-9]+\\)*\\)\\.[0-9]+$" emacs-version)
+ (concat "Emacs/" (match-string 1 emacs-version)
+ (if system-v
+ (concat " (" system-v ")")
+ "")))
+ ((string-match
+ "\\([A-Z]*[Mm][Aa][Cc][Ss]\\)[^(]*\\(\\((beta.*)\\|'\\)\\)?"
+ emacs-version)
+ (concat
+ (match-string 1 emacs-version)
+ (format "/%d.%d" emacs-major-version emacs-minor-version)
+ (if (match-beginning 3)
+ (match-string 3 emacs-version)
+ "")
+ (if (boundp 'xemacs-codename)
+ (concat
+ " (" xemacs-codename
+ (if system-v
+ (concat ", " system-v ")")
+ ")"))
+ "")))
+ (t emacs-version))))
+
+(defun gnus-rename-file (old-path new-path &optional trim)
+ "Rename OLD-PATH as NEW-PATH. If TRIM, recursively delete
+empty directories from OLD-PATH."
+ (when (file-exists-p old-path)
+ (let* ((old-dir (file-name-directory old-path))
+ (old-name (file-name-nondirectory old-path))
+ (new-dir (file-name-directory new-path))
+ (new-name (file-name-nondirectory new-path))
+ temp)
+ (gnus-make-directory new-dir)
+ (rename-file old-path new-path t)
+ (when trim
+ (while (progn (setq temp (directory-files old-dir))
+ (while (member (car temp) '("." ".."))
+ (setq temp (cdr temp)))
+ (= (length temp) 0))
+ (delete-directory old-dir)
+ (setq old-dir (file-name-as-directory
+ (file-truename
+ (concat old-dir "..")))))))))
+
+(defun gnus-set-file-modes (filename mode)
+ "Wrapper for set-file-modes."
+ (ignore-errors
+ (set-file-modes filename mode)))
+