1 files changed, 2 insertions, 4 deletions
diff --git a/gdbstub.h b/gdbstub.h
index 3f981f3..e72635d 100644
--- a/gdbstub.h
+++ b/gdbstub.h
@@ -23,6 +23,8 @@
 #ifndef _GDBSTUB_H_
 #define _GDBSTUB_H_
 
+#include <stddef.h>
+
 /* Enable debug statements (printf) */
 #ifndef DEBUG
 #define DEBUG 0
@@ -50,10 +52,6 @@
 #define EOF (-1)
 #endif
 
-#ifndef NULL
-#define NULL ((void*)0)
-#endif
-
 #ifndef ASSERT
 #if DEBUG
 #define ASSERT(x) { \