--- a/lib/replace/wscript
+++ b/lib/replace/wscript
@@ -71,7 +71,7 @@
     conf.CHECK_HEADERS('sys/fileio.h sys/filesys.h sys/dustat.h sys/sysmacros.h')
     conf.CHECK_HEADERS('xfs/libxfs.h netgroup.h')
 
-    conf.CHECK_CODE('', headers='rpc/rpc.h rpcsvc/yp_prot.h', define='HAVE_RPCSVC_YP_PROT_H')
+    conf.CHECK_CODE('ypstat s;', headers='rpc/rpc.h rpcsvc/yp_prot.h', define='HAVE_RPCSVC_YP_PROT_H')
 
     conf.CHECK_HEADERS('valgrind.h valgrind/valgrind.h valgrind/memcheck.h')
     conf.CHECK_HEADERS('nss_common.h nsswitch.h ns_api.h')