diff -ruN xen-2.0-testing.bk/tools/vnet/Makefile xen/tools/vnet/Makefile
--- xen-2.0-testing.bk/tools/vnet/Makefile      2005-01-31 20:38:33.000000000 -0400
+++ xen/tools/vnet/Makefile     2005-02-09 11:28:48.132468424 -0400
@@ -20,10 +20,8 @@
        tar xfz gc.tar.gz
        ln -sf gc?.? gc
  
-gc/Makefile:
-       (cd gc && ./configure --prefix=`pwd`/install)
-
 gc-install: gc gc/Makefile
+       (cd gc && make test && ./configure --prefix=`pwd`/install)
        make -C gc
        make -C gc install