--- a/src/internet-stack/wscript	Fri Jun 19 14:12:59 2009 -0700
+++ b/src/internet-stack/wscript	Sun Jun 21 22:29:08 2009 -0700
@@ -74,6 +74,7 @@
     obj.source = [
         'tcp-test.cc',
         'udp-test.cc',
+        'ipv4-test.cc',
         'ipv4-l4-protocol.cc',
         'udp-header.cc',
         'tcp-header.cc',