diff -up nfs-utils-2.3.1/tools/Makefile.am.orig nfs-utils-2.3.1/tools/Makefile.am
--- nfs-utils-2.3.1/tools/Makefile.am.orig	2017-12-20 10:40:36.000000000 -0500
+++ nfs-utils-2.3.1/tools/Makefile.am	2018-05-16 08:08:13.829718208 -0400
@@ -1,11 +1,5 @@
 ## Process this file with automake to produce Makefile.in
 
-OPTDIRS =
-
-if CONFIG_RPCGEN
-OPTDIRS += rpcgen
-endif
-
-SUBDIRS = locktest rpcdebug nlmtest mountstats nfs-iostat $(OPTDIRS)
+SUBDIRS = locktest rpcdebug nlmtest mountstats nfs-iostat
 
 MAINTAINERCLEANFILES = Makefile.in