[logback-user] commons-compiler required?

Hi, I'm using Janino with logback to utilize evaluators after installing Janino as described at http://logback.qos.ch/setup.html. It's working great. However I noticed that over on Janino's site (http://docs.codehaus.org/display/JANINO/Download#Download-installation) they require commons-compiler.jar. My question is, does Logback also require commons-compiler.jar? I just want to make sure I don't run into a ClassNotFoundException down the road. Thanks!