private void runCompiler(String[] commandLine) {
// hand crank it so we can add our own compiler configuration
try {
Options options = FileSystemCompiler.createCompilationOptions();
CommandLineParser cliParser = new GroovyInternalPosixParser();
CommandLine cli;
cli = cliParser.parse(options, commandLine);
configuration = FileSystemCompiler.generateCompilerConfigurationFromOptions(cli);
configuration.setScriptExtensions(getScriptExtensions());
String tmpExtension = getScriptExtension();
if (tmpExtension.startsWith("*."))