--- a/zconf.h.in +++ b/zconf.h.in @@ -380,7 +380,11 @@ #endif #ifndef ZEXTERN -# define ZEXTERN extern +# ifdef HAVE_HIDDEN +# define ZEXTERN extern __attribute__((visibility ("default"))) +# else +# define ZEXTERN extern +# endif #endif #ifndef ZEXPORT # define ZEXPORT