In case anyone is trying to build from a recent 680-based workspace such as cws_src680_ooo20040329 and is seeing this error in Rhino:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/tools/ant/launch/AntMain You should change the ANT= line in solenv/inc/ant.mk: -ANT=$(WRAPCMD) java -classpath $(CLASSPATH) -Xmx128m org.apache.tools.ant.Main -Djava.home=$(JAVA_HOME) -Dant.home=$(ANT_HOME) +ANT=$(ANT_HOME)/bin/ant (Taken from ant01 branch.) Chris