--- a/src/core/wscript Fri Oct 17 13:11:39 2008 +0200 +++ b/src/core/wscript Fri Oct 17 14:15:52 2008 +0200 @@ -72,6 +72,7 @@ 'traced-callback.cc', 'trace-source-accessor.cc', 'config.cc', + 'callback.cc', ] core.uselib = 'RT'