1 files changed, 4 insertions, 1 deletions
diff --git a/tools.h b/tools.h
index c49f137..718d8df 100644
--- a/tools.h
+++ b/tools.h
@@ -1,6 +1,9 @@
-#define memcpy0 memcpy32
+#ifndef _PCITOOL_TOOLS_H
+#define _PCITOOL_TOOLS_H
 
 void * memcpy8(void * dst, void const * src, size_t len);
 void * memcpy32(void * dst, void const * src, size_t len);
 void * memcpy64(void * dst, void const * src, size_t len);
 int get_page_mask();
+
+#endif /* _PCITOOL_TOOS_H */