compilation fails when classpath is long

[brown]

When the Java classpath is long, the command line "-cp" argument passed to groovyc exceeds the Linux maximum size for any single command argument, which is roughly 131K.

I have a hack to groovy/groovy.bzl that works around the problem by using symlinks. The groovyc command really needs a way to specify very long classpaths. Maybe it would be better to set the CLASSPATH environment variable in the Bazel rule?

What do you think?

[brown]

This problem is fixed for me by pull request #65