check for existence of binary first

debian/interchange.cron.daily

@@ -2,7 +2,7 @@
 #
 # cron script to expire sessions
 #
-# Copyright 2000,2001 by Stefan Hornburg (Racke) <racke@linuxia.de>
+# Copyright 2000,2001,2004 by Stefan Hornburg (Racke) <racke@linuxia.de>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -19,6 +19,11 @@
 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 # MA  02111-1307  USA.
 
+if [ ! -x /usr/lib/interchange/bin/expireall ] ; then
+	# package probably removed
+	exit 0
+fi
+
 # only accept value from /etc/interchange/init.cfg
 USER=
 . /etc/interchange/init.cfg