@@ -68,16 +68,18 @@
 # define OF_INLINE inline __attribute__((__always_inline__))
 # define OF_LIKELY(cond) (__builtin_expect(!!(cond), 1))
 # define OF_UNLIKELY(cond) (__builtin_expect(!!(cond), 0))
 # define OF_CONST_FUNC __attribute__((__const__))
 # define OF_NO_RETURN_FUNC __attribute__((__noreturn__))
+# define OF_WEAK_REF(sym) __attribute__((__weakref__(sym)))
 #else
 # define OF_INLINE inline
 # define OF_LIKELY(cond) cond
 # define OF_UNLIKELY(cond) cond
 # define OF_CONST_FUNC
 # define OF_NO_RETURN_FUNC
+# define OF_WEAK_REF(sym)
 #endif
 
 #ifdef OF_BIG_ENDIAN
 # define OF_BYTE_ORDER_NATIVE OF_BYTE_ORDER_BIG_ENDIAN
 #else