string.h: Include null.h

diff --git a/include/string.h b/include/string.h
index 87fa3aa6828999471b2ec146f1b6097fbbcd9bfa..4d27b3481f0a6a764b2abbc1a6c117fb9760ff10 100644 (file)
--- a/include/string.h
+++ b/include/string.h
@@ -10,8 +10,7 @@
  * string.h is include.
  */
 #include <stdint.h>
-
-#define NULL    ((void *)0)
+#include <sys/null.h>
 
 #ifndef _SIZE_T
 #define _SIZE_T