This is my error when building http://www.processing.org/:
BUILD FAILED /opt/processing/build/build.xml:309: The following error occurred while executing this line: /opt/processing/build/build.xml:365: The following error occurred while executing this line: /opt/processing/java/build.xml:37: Problem: failed to create task or type antlr Cause: the class org.apache.tools.ant.taskdefs.optional.ANTLR was not found. This looks like one of Ant's optional components. Action: Check that the appropriate optional JAR exists in -/opt/apache-ant-1.9.5/lib -/root/.ant/lib -a directory added on the command line with the -lib argument Do not panic, this is a common problem. The commonest cause is a missing JAR. This is not a bug; it is a configuration problem
I have done what it says and placed placed the jar in the right place. i did not see any ant documentation on how to pass the -lib on the commands line i even tried installing antlr via package manager which works i can type antlr and it spits out
Antlr parser generator Version 1.33MR33 1989-2001
What can I do?