To build BSF3.0rc , one needs the followings: - Servlet API.jar via Tomcat or other source - Supporting language .jar files: Rhino -> http://www.mozilla.org/rhino Make sure the .jars (and Ant) are in your CLASSPATH, and then use the command ant [target] where [target] is one of the following: - compile -> creates the "bsf.jar" package in "./build/lib" (default target) - bindist -> creates the complete binary distribution - srcdist -> creates the complete source distribution - dist -> creates both binary and source distributions - javadocs -> generates the docs for the whole package in "./dist/javadocs"