calhost etc # cat logrotate.conf 
# $Header: /var/cvsroot/gentoo-x86/app-admin/logrotate/files/logrotate.conf,v 1.3 2008/12/24 20:49:10 dang Exp $
#
# Logrotate default configuration file for Gentoo Linux
#
# See "man logrotate" for details

# rotate log files weekly
weekly
#daily

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# use date as a suffix of the rotated file
dateext

# uncomment this if you want your log files compressed
compress

# packages can drop log rotation information into this directory
include /etc/logrotate.d

notifempty
nomail
olddir /var/log/old_logs

# no packages own lastlog or wtmp -- we'll rotate them here
/var/log/wtmp {
    monthly
    create 0664 root utmp
    rotate 2
}

/var/log/btmp {
    missingok
    monthly
    create 0600 root utmp
    rotate 2
}

# system-specific logs may be also be configured here.
/var/log/messages {
    rotate 4
    weekly
    postrotate
         /usr/bin/killall -HUP rsyslogd
    endscript
}
localhost etc # logrotate /etc/logrotate.conf 
error: /etc/logrotate.conf:45 duplicate log entry for /var/log/messages
error: found error in /var/log/messages , skipping
localhost etc #

localhost logrotate.d # cat rsyslog
# $Header: /var/cvsroot/gentoo-x86/app-admin/rsyslog/files/3-stable/rsyslog.logrotate,v 1.1 2008/04/09 17:32:56 dev-zero Exp $
#
# Syslog-ng logrotate snippet for Gentoo Linux
#

/var/log/messages /var/log/secure /var/log/maillog /var/log/cron /var/log/spooler /var/log/boot.log {
    sharedscripts
    postrotate
        /etc/init.d/rsyslog reload > /dev/null 2>&1 || true
    endscript
}