diff options
Diffstat (limited to 'Xfuncproto.h.in')
| -rw-r--r-- | Xfuncproto.h.in | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Xfuncproto.h.in b/Xfuncproto.h.in index e9e5e71..5daa83e 100644 --- a/Xfuncproto.h.in +++ b/Xfuncproto.h.in @@ -152,6 +152,9 @@ in this Software without prior written authorization from The Open Group. argument macros, must be only used inside #ifdef _X_NONNULL guards, as many legacy X clients are compiled in C89 mode still. */ #if __has_attribute(nonnull) \ + && defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 199901L) /* C99 */ +#define _X_NONNULL(...) __attribute__((nonnull(__VA_ARGS__))) +#elif __has_attribute(nonnull) \ || defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 303) #define _X_NONNULL(args...) __attribute__((nonnull(args))) #elif defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 199901L) /* C99 */ |