1 files changed, 13 insertions, 0 deletions
diff --git a/system-clock/include/common.h b/system-clock/include/common.h
new file mode 100644
index 0000000..f58f179
--- /dev/null
+++ b/system-clock/include/common.h
@@ -0,0 +1,13 @@
+#ifndef COMMON__H
+#define COMMON__H
+
+/* Define __IO to be volatile if it's not already. */
+#ifndef __IO
+#define __IO volatile
+#endif
+
+#define bool int
+
+#define PACKED __attribute__((packed))
+
+#endif /* COMMON_H */