# error "missing endian definiton"
#endif
+--- a/src/linux/ifxos_linux_thread_drv.c
++++ b/src/linux/ifxos_linux_thread_drv.c
+@@ -34,7 +34,9 @@
+ #include <linux/sched.h>
+ #include <linux/version.h>
+ #include <linux/completion.h>
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
+ #include <linux/smp_lock.h>
++#endif
+ #include <linux/signal.h>
+
+