--- a/wscript	Wed Dec 17 12:17:17 2008 -0800
+++ b/wscript	Wed Dec 17 12:42:02 2008 -0800
@@ -492,9 +492,11 @@
         if not regression_traces:
             regression_traces = None
         try:
-            regression.run_regression(regression_traces)
+            retval = regression.run_regression(regression_traces)
         finally:
             os.chdir(_dir)
+        if retval:
+            sys.exit(retval)
 
     if Params.g_options.lcov_report:
         lcov_report()