--- a/wscript	Thu Sep 13 21:36:32 2007 -0700
+++ b/wscript	Thu Sep 13 22:17:29 2007 -0700
@@ -119,6 +119,7 @@
     if 'debug' in Params.g_options.debug_level.lower():
         variant_env.append_value('CXXDEFINES', 'NS3_DEBUG_ENABLE')
         variant_env.append_value('CXXDEFINES', 'NS3_ASSERT_ENABLE')
+        variant_env.append_value('CXXDEFINES', 'NS3_LOG_ENABLE')
 
     ## In optimized builds we still want debugging symbols, e.g. for
     ## profiling, and at least partially usable stack traces.