diff --git a/include/stdlib.h b/include/stdlib.h
index 4e7ffbd6a..05148d7da 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -44,6 +44,12 @@ typedef unsigned size_t;
 #define _HAVE_size_t
 #endif
 
+/* NULL pointer */
+#ifndef _HAVE_NULL
+#define NULL    ((void *) 0)
+#define _HAVE_NULL
+#endif
+
 /* Standard exit codes */
 #define EXIT_SUCCESS    0
 #define EXIT_FAILURE    1
@@ -167,6 +173,3 @@ int __fastcall__ putenv (char* s);
 
 /* End of stdlib.h */
 #endif
-
-
-