Add separate target to build the ops files by itself.

rc.d/GNUmakefile.in

 #
 # EMULAB-COPYRIGHT
-# Copyright (c) 2000-2011 University of Utah and the Flux Group.
+# Copyright (c) 2000-2012 University of Utah and the Flux Group.
 # All rights reserved.
 #
 # For installation.
@@ -50,6 +50,8 @@ endif
 # 
 all: $(RC_SCRIPTS) $(OPS_SCRIPTS) $(SUBBOSS_SCRIPTS) capture.sh 3.v0_gateway.sh
 
+control-build:	$(OPS_SCRIPTS) 
+
 include $(TESTBED_SRCDIR)/GNUmakerules
 
 # Like the INSTALL_BINDIR target