From 3a33ee995cbb151ab2a1c98d1dbe053544454e4e Mon Sep 17 00:00:00 2001
From: ajneu <ajneu@users.noreply.github.com>
Date: Mon, 13 Jun 2016 10:52:41 +0200
Subject: [PATCH] header-guard for lib.h

---
 lib.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib.h b/lib.h
index 36c3a09..2837278 100644
--- a/lib.h
+++ b/lib.h
@@ -41,6 +41,11 @@
  *
  */
 
+#ifndef CAN_UTILS_LIB_H
+#define CAN_UTILS_LIB_H
+
+#include <stdio.h>
+
 /* buffer sizes for CAN frame string representations */
 
 #define CL_ID (sizeof("12345678##1"))
@@ -208,3 +213,5 @@ void snprintf_can_error_frame(char *buf, size_t len, const struct canfd_frame *c
 /*
  * Creates a CAN error frame output in user readable format.
  */
+
+#endif