Added boilerplate interface code

1 files changed, 3 insertions, 3 deletions

diff --git a/mutex.h b/mutex.h
index 78b4cdf..2894b41 100644
--- a/mutex.h
+++ b/mutex.h
@@ -1,5 +1,5 @@
-#ifndef MUTEX_H
-#define MUTEX_H
+#ifndef MUTEX_H_
+#define MUTEX_H_
 
 #include <pthread.h>
 
@@ -19,5 +19,5 @@ extern pthread_cond_t cond_synth;
 void initialize_mutex();
 void destroy_mutex();
 
-#endif // MUTEX_H
+#endif // MUTEX_H_