--- zzzz-none-000/linux-2.6.32.61/kernel/Makefile	2013-06-10 09:43:48.000000000 +0000
+++ ar10-7272-687/linux-2.6.32.61/kernel/Makefile	2013-12-03 18:19:45.000000000 +0000
@@ -10,7 +10,7 @@
 	    kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
 	    hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \
 	    notifier.o ksysfs.o pm_qos_params.o sched_clock.o cred.o \
-	    async.o
+	    async.o env.o
 obj-y += groups.o
 
 ifdef CONFIG_FUNCTION_TRACER