148 #  ifndef EV_USE_SIGNALFD
149 #   define EV_USE_SIGNALFD EV_FEATURE_OS  macro
152 #  undef EV_USE_SIGNALFD
153 #  define EV_USE_SIGNALFD 0  macro
342 #ifndef EV_USE_SIGNALFD
344 #  define EV_USE_SIGNALFD EV_FEATURE_OS  macro
346 #  define EV_USE_SIGNALFD 0  macro
448 #if EV_USE_SIGNALFD
2594 #if EV_USE_SIGNALFD
2887 #if EV_USE_SIGNALFD  in loop_init()
2960 #if EV_USE_SIGNALFD  in ev_loop_destroy()
4052 #if EV_USE_SIGNALFD  in ev_signal_start()
4086 # if EV_USE_SIGNALFD  in ev_signal_start()
4133 #if EV_USE_SIGNALFD  in ev_signal_stop()