From ba5265a4e0f7df4a5ad96b335cc807444f4c4730 Mon Sep 17 00:00:00 2001
From: Andrew Opalach <andrew@akon.city>
Date: Fri, 27 Sep 2019 18:40:40 -0400
Subject: add header guard

---
 lib/cetris.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/cetris.h b/lib/cetris.h
index dc92d83..49faf87 100644
--- a/lib/cetris.h
+++ b/lib/cetris.h
@@ -1,3 +1,6 @@
+#ifndef CETRIS_H
+#define CETRIS_H
+
 #include <assert.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -681,3 +684,5 @@ void rotate_matrix(cetris_game *g, piece_matrix *m, bool clockwise) {
     }
   }
 }
+
+#endif /* CETRIS_H */
-- 
cgit v1.2.3-101-g0448