-(defvar gnus-kill-file-mode-hook nil
- "*A hook for Gnus kill file mode.")
-
-(defvar gnus-kill-expiry-days 7
- "*Number of days before expiring unused kill file entries.")
-
-(defvar gnus-kill-save-kill-file nil
- "*If non-nil, will save kill files after processing them.")
-
-(defvar gnus-winconf-kill-file nil)
-
-(defvar gnus-kill-killed t
+(defcustom gnus-kill-file-mode-hook nil
+ "Hook for Gnus kill file mode."
+ :group 'gnus-score-kill
+ :type 'hook)
+
+(defcustom gnus-kill-expiry-days 7
+ "*Number of days before expiring unused kill file entries."
+ :group 'gnus-score-kill
+ :group 'gnus-score-expire
+ :type 'integer)
+
+(defcustom gnus-kill-save-kill-file nil
+ "*If non-nil, will save kill files after processing them."
+ :group 'gnus-score-kill
+ :type 'boolean)
+
+(defcustom gnus-winconf-kill-file nil
+ "What does this do, Lars?
+I don't know, Per."
+ :group 'gnus-score-kill
+ :type 'sexp)
+
+(defcustom gnus-kill-killed t