--- a/src/wscript	Wed Jun 01 17:34:53 2011 +0100
+++ b/src/wscript	Wed Jun 01 17:01:55 2011 -0700
@@ -90,6 +90,7 @@
     conf.sub_config('click')
     conf.sub_config('openflow')
     conf.sub_config('stats')
+    conf.sub_config('visualizer')
 
     blddir = os.path.abspath(os.path.join(conf.blddir, conf.env.variant()))
     conf.env.append_value('NS3_MODULE_PATH', blddir)