*
* clang: https://clang.llvm.org/docs/AttributeReference.html#pass-object-size-pass-dynamic-object-size
*/
+#if __has_attribute(__pass_dynamic_object_size__)
+# define __pass_dynamic_object_size(type) __attribute__((__pass_dynamic_object_size__(type)))
+#else
+# define __pass_dynamic_object_size(type)
+#endif
#if __has_attribute(__pass_object_size__)
# define __pass_object_size(type) __attribute__((__pass_object_size__(type)))
#else