(defvar ibuffer-tmp-hide-regexps)
(defvar ibuffer-tmp-show-regexps)
+(declare-function ibuffer-mark-on-buffer "ibuf-ext"
+ (func &optional ibuffer-mark-on-buffer-mark group))
+(declare-function ibuffer-format-qualifier "ibuf-ext" (qualifier))
+(declare-function ibuffer-generate-filter-groups "ibuf-ext"
+ (bmarklist &optional noempty nodefault))
+(declare-function ibuffer-format-filter-group-data "ibuf-ext" (filter))
+
(defgroup ibuffer nil
"An advanced replacement for `buffer-menu'.