103 #  ifndef EV_USE_POLL
104 #   define EV_USE_POLL EV_FEATURE_BACKENDS  macro
107 #  undef EV_USE_POLL
108 #  define EV_USE_POLL 0  macro
294 #ifndef EV_USE_POLL
296 #  define EV_USE_POLL 0  macro
298 #  define EV_USE_POLL EV_FEATURE_BACKENDS  macro
380 # undef EV_USE_POLL
381 # define EV_USE_POLL 0  macro
2689 #if EV_USE_POLL
2728   if (EV_USE_POLL  ) flags |= EVBACKEND_POLL;  in ev_supported_backends()
2906 #if EV_USE_POLL  in loop_init()
2985 #if EV_USE_POLL  in ev_loop_destroy()