logrotate question

Hi, I want my apache log files to be rotated when they're bigger then 50M and ONLY when they're bigger. But my /etc/logrotate.conf says: # rotate log files weekly weekly I added a file /etc/logrotate.d/apache: /var/log/apache2/*.log { size=20M ... } What's gonna happen? Are the files rotated even when they're smaller than 50M? Do i have to change the global options and thus all other configurations in /etc/logrotate.d? Till