Hack to keep delay-agent compiling in the face of different versions

of dummynet code.

event/delay-agent/callback.c

@@ -426,8 +426,9 @@ void set_link_params(int l_index, int blackhole, int p_which)
 	    pipe.bandwidth = p_params->bw;
 	    pipe.delay = p_params->delay;
 
-        /* pramod-CHANGES */
-        pipe.backfill = p_params->backfill;
+#ifdef DN_HAVE_BACKFILL
+	    pipe.backfill = p_params->backfill;
+#endif
 
 	    /* set the pipe number*/
 	    pipe.pipe_nr = link_map[l_index].pipes[p_index];
@@ -600,18 +601,17 @@ int get_new_link_params(int l_index, event_handle_t handle,
     
     while((argvalue = strsep(&temp," \n"))){
 
-        /*pramod-CHANGES: */
-      /* Backfill parameters. */ 
-      if(strcmp(argtype,"BACKFILL")== 0){
-
-    link_map[l_index].params[p_num].backfill = atoi(argvalue) * 1000;
-    if (! gotpipe) {
-      link_map[l_index].params[1].backfill =
-          link_map[l_index].params[0].backfill;
-    }
+#ifdef DN_HAVE_BACKFILL
+    /* Backfill parameters. */ 
+    if(strcmp(argtype,"BACKFILL")== 0){
+      link_map[l_index].params[p_num].backfill = atoi(argvalue) * 1000;
+      if (! gotpipe) {
+	link_map[l_index].params[1].backfill =
+		link_map[l_index].params[0].backfill;
       }
-      
-      else if(strcmp(argtype,"BANDWIDTH")== 0){
+    } else
+#endif
+    if(strcmp(argtype,"BANDWIDTH")== 0){
 	info("Bandwidth = %d\n", atoi(argvalue) * 1000);
 	link_map[l_index].params[p_num].bw = atoi(argvalue) * 1000;
 	if (! gotpipe) {