diff -u -r ../bind-9.13.4/lib/isc/pthreads/thread.c ./lib/isc/pthreads/thread.c
--- ../bind-9.13.4/lib/isc/pthreads/thread.c	2018-11-22 00:20:34.000000000 +0000
+++ ./lib/isc/pthreads/thread.c	2018-11-26 22:56:50.905945958 +0000
@@ -73,7 +73,9 @@
 
 void
 isc_thread_setconcurrency(unsigned int level) {
+#ifndef __ANDROID__
 	(void)pthread_setconcurrency(level);
+#endif
 }
 
 void