1 files changed, 5 insertions, 0 deletions

diff --git a/include/internal.h b/include/internal.h
index 07253b7..f30ce61 100644
--- a/include/internal.h
+++ b/include/internal.h
@@ -18,8 +18,13 @@ int __launch_rt_task(rt_fn_t rt_prog, void *rt_arg,
         }
 
 
+/* taken from the kernel */
+
 #define likely(x)   __builtin_expect((x), 1)
 #define unlikely(x) __builtin_expect((x), 0)
 
+#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
+#define BUILD_BUG_ON(condition) ((void)BUILD_BUG_ON_ZERO(condition))
+
 #endif