common: sync with upstream

1 files changed, 5 insertions, 4 deletions

diff --git a/common/ring.h b/common/ring.h
index 91d4794..0194959 100644
--- a/common/ring.h
+++ b/common/ring.h
@@ -21,16 +21,17 @@
 
 #include <stddef.h>
 
+#ifndef ASSERT
+# include <assert.h>
+# define ASSERT(X) assert(X)
+#endif
+
 typedef struct Ring RingItem;
 typedef struct Ring {
     RingItem *prev;
     RingItem *next;
 } Ring;
 
-#ifndef ASSERT
-# define ASSERT(X)
-#endif
-
 static inline void ring_init(Ring *ring)
 {
     ring->next = ring->prev = ring;