diff -uNr libtirpc-1.2.6/src/svc.c libtirpc-1.2.6.mod/src/svc.c
--- libtirpc-1.2.6/src/svc.c	2020-04-07 16:24:34.000000000 +0300
+++ libtirpc-1.2.6.mod/src/svc.c	2020-06-07 03:10:30.231611990 +0300
@@ -630,6 +630,29 @@
   svc_getreqset (&readfds);
 }
 
+#ifdef __ANDROID__
+static int ffsl(int i)
+{
+  static const unsigned char table[] =
+    {
+      0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+      6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+      8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+      8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+      8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+      8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
+    };
+  unsigned int a;
+  unsigned int x = i & -i;
+
+  a = x <= 0xffff ? (x <= 0xff ? 0 : 8) : (x <= 0xffffff ?  16 : 24);
+
+  return table[x >> a] + a;
+}
+#endif
+
 void
 svc_getreqset (readfds)
      fd_set *readfds;