diff options
| -rw-r--r-- | sys/sys/_null.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/sys/_null.h b/sys/sys/_null.h index 9e965f100b1a..caae78133c9d 100644 --- a/sys/sys/_null.h +++ b/sys/sys/_null.h @@ -31,11 +31,15 @@ #if defined(_KERNEL) || !defined(__cplusplus) #define NULL ((void *)0) #else +#if defined(__GNUG__) && defined(__GNUC__) && __GNUC__ >= 4 +#define NULL __null +#else #if defined(__LP64__) #define NULL (0L) #else #define NULL 0 #endif /* __LP64__ */ +#endif /* __GNUG__ */ #endif /* _KERNEL || !__cplusplus */ #endif |