1#ifndef FEATURES_H 2#define FEATURES_H 3 4#include "../../include/features.h" 5 6#define weak __attribute__((__weak__)) 7#define hidden __attribute__((__visibility__("hidden"))) 8#define weak_alias(old, new) \ 9 extern __typeof(old) new __attribute__((__weak__, __alias__(#old))) 10 11#endif 12