--- rxvt-unicode/src/rxvtutil.h	2014/12/14 04:52:10	1.63
+++ rxvt-unicode/src/rxvtutil.h	2019/06/25 03:35:01	1.64
@@ -3,7 +3,10 @@
 
 #include <stdlib.h>
 #include <string.h>
+
+#define ECB_NO_THREADS 1
 #include "ecb.h"
+
 #include "estl.h"
 
 #include "emman.h"