Merge over into the trunk.

[tinyos-2.x.git] / tos / platforms / null / hardware.h

diff --git a/tos/platforms/null/hardware.h b/tos/platforms/null/hardware.h
index 3c52c2a851fab5787f0774f1d7b9d0dcce9f8dcb..bd9ff077616c39793fa5fdcbec6228106a4ad252 100644 (file)
--- a/tos/platforms/null/hardware.h
+++ b/tos/platforms/null/hardware.h
@@ -1,3 +1,6 @@
+
+#ifndef HARDWARE_H
+#define HARDWARE_H
 inline void __nesc_enable_interrupt() { }
 inline void __nesc_disable_interrupt() { }
 
@@ -9,3 +12,5 @@ inline __nesc_atomic_t __nesc_atomic_start(void) @spontaneous() {
 
 inline void __nesc_atomic_end(__nesc_atomic_t x) @spontaneous() { }
 inline void __nesc_atomic_sleep() { }
+
+#endif