--- rxvt-unicode/src/ev_cpp.h	2011/01/10 13:01:59	1.21
+++ rxvt-unicode/src/ev_cpp.h	2019/06/25 03:35:01	1.22
@@ -1,8 +1,11 @@
+#define ECB_NO_THREADS 1
+
 #define EV_COMPAT3 0
 #define EV_USE_SELECT 1
 #define EV_USE_EPOLL 1
 #define EV_USE_KQUEUE 1
 #define EV_USE_PORT 1
+//#define EV_USE_LINUXAIO 1
 #define EV_PREPARE_ENABLE 1
 #define EV_IDLE_ENABLE 1
 #define EV_SIGNAL_ENABLE 1