diff --git a/ChangeLog b/ChangeLog
index f156d857e7..3a38045869 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,20 @@
+2018-01-29  Florian Weimer  <fweimer@redhat.com>
+
+	[BZ #22701]
+	* include/rpcsvc/nislib.h (__nis_default_ttl): Add
+	libnsl_hidden_proto.
+	* include/rpcsvc/yp.h (yp_xdrall): Declare with
+	libnsl_hidden_proto.
+	* include/rpcsvc/ypclnt.h (yp_maplist): Likewise.
+	* nis/Makefile (libnsl-routines): Add nss-default only for
+	build-obsolete-nsl.
+	* nis/nis_defaults.c (__nis_default_ttl): Add
+	libnsl_hidden_nolink_def.
+	* nis/rpcsvc/ypclnt.h (yp_maplist): Remove #ifdef'ed-out
+	declaration.
+	* nis/yp_xdr.c (xdr_ypall): Add libnsl_hidden_nolink_def.
+	* nis/ypclnt.c (yp_maplist): Likewise.
+
 2018-01-29  Romain Naour  <romain.naour@gmail.com>  (tiny change)
 
 	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
diff --git a/include/rpcsvc/nislib.h b/include/rpcsvc/nislib.h
index 91dab1d171..ad4d499911 100644
--- a/include/rpcsvc/nislib.h
+++ b/include/rpcsvc/nislib.h
@@ -42,6 +42,7 @@ libnsl_hidden_proto (nis_remove)
 libnsl_hidden_proto (nis_add)
 libnsl_hidden_proto (__nis_default_owner)
 libnsl_hidden_proto (__nis_default_group)
+libnsl_hidden_proto (__nis_default_ttl)
 libnsl_hidden_proto (__nis_default_access)
 libnsl_hidden_proto (nis_clone_object)
 libnsl_hidden_proto (nis_clone_result)
diff --git a/include/rpcsvc/yp.h b/include/rpcsvc/yp.h
index 9078854d40..87cd3827a7 100644
--- a/include/rpcsvc/yp.h
+++ b/include/rpcsvc/yp.h
@@ -3,6 +3,9 @@
 
 # ifndef _ISOMAC
 
+struct ypall_callback;
+bool_t xdr_ypall (XDR *, struct ypall_callback *);
+
 libnsl_hidden_proto (xdr_ypstat)
 libnsl_hidden_proto (xdr_ypxfrstat)
 libnsl_hidden_proto (xdr_domainname)
@@ -28,6 +31,7 @@ libnsl_hidden_proto (xdr_ypreq_xfr)
 libnsl_hidden_proto (xdr_ypresp_xfr)
 libnsl_hidden_proto (xdr_yppushresp_xfr)
 libnsl_hidden_proto (xdr_ypbind_setdom)
+libnsl_hidden_proto (xdr_ypall)
 
 # endif /* !_ISOMAC */
 #endif
diff --git a/include/rpcsvc/ypclnt.h b/include/rpcsvc/ypclnt.h
index df2a03d9c5..c6a724814c 100644
--- a/include/rpcsvc/ypclnt.h
+++ b/include/rpcsvc/ypclnt.h
@@ -3,6 +3,9 @@
 
 # ifndef _ISOMAC
 
+struct ypmaplist;
+int yp_maplist (const char *, struct ypmaplist **) __THROW;
+
 libnsl_hidden_proto (ypbinderr_string)
 libnsl_hidden_proto (yp_bind)
 libnsl_hidden_proto (yp_get_default_domain)
@@ -17,6 +20,7 @@ libnsl_hidden_proto (yp_next)
 libnsl_hidden_proto (yp_match)
 libnsl_hidden_proto (yp_all)
 libnsl_hidden_proto (__yp_check)
+libnsl_hidden_proto (yp_maplist)
 
 # endif /* !_ISOMAC */
 #endif
diff --git a/nis/Makefile b/nis/Makefile
index e7497f7242..d77c6e0c8e 100644
--- a/nis/Makefile
+++ b/nis/Makefile
@@ -58,9 +58,10 @@ libnsl-routines = yp_xdr ypclnt ypupdate_xdr \
 		  nis_print_group_entry nis_domain_of nis_domain_of_r\
 		  nis_modify nis_remove nis_add nis_defaults\
 		  nis_findserv nis_callback nis_clone_dir nis_clone_obj\
-		  nis_clone_res nss-default
+		  nis_clone_res
 
 ifeq ($(build-obsolete-nsl),yes)
+libnsl-routines += nss-default
 libnss_nis-routines	:= $(addprefix nis-,$(databases)) nis-initgroups \
 			   nss-nis
 libnss_nis-inhibit-o	= $(filter-out .os,$(object-suffixes))
diff --git a/nis/nis_defaults.c b/nis/nis_defaults.c
index 58e64a8e98..0be47aa65c 100644
--- a/nis/nis_defaults.c
+++ b/nis/nis_defaults.c
@@ -428,6 +428,7 @@ __nis_default_ttl (char *defaults)
 
   return searchttl (cptr);
 }
+libnsl_hidden_nolink_def (__nis_default_ttl, GLIBC_2_1)
 
 /* Default access rights are ----rmcdr---r---, but we could change
    this with the NIS_DEFAULTS variable. */
diff --git a/nis/rpcsvc/ypclnt.h b/nis/rpcsvc/ypclnt.h
index b96cb3b40e..af904fccb2 100644
--- a/nis/rpcsvc/ypclnt.h
+++ b/nis/rpcsvc/ypclnt.h
@@ -76,9 +76,6 @@ extern const char *ypbinderr_string (const int) __THROW;
 extern int ypprot_err (const int) __THROW;
 extern int yp_update (char *, char *, unsigned int,  char *,
 		      int, char *, int) __THROW;
-#if 0
-extern int yp_maplist (const char *, struct ypmaplist **) __THROW;
-#endif
 
 /* This functions exists only under BSD and Linux systems.  */
 extern int __yp_check (char **) __THROW;
diff --git a/nis/yp_xdr.c b/nis/yp_xdr.c
index 0081b4c926..3b576731da 100644
--- a/nis/yp_xdr.c
+++ b/nis/yp_xdr.c
@@ -327,4 +327,4 @@ xdr_ypall(XDR *xdrs, struct ypall_callback *incallback)
 	    return FALSE;
     }
 }
-/* XXX libnsl_hidden_nolink_def(xdr_ypall, GLIBC_2_2) */
+libnsl_hidden_nolink_def (xdr_ypall, GLIBC_2_2)
diff --git a/nis/ypclnt.c b/nis/ypclnt.c
index 95215e2f67..11a17db98d 100644
--- a/nis/ypclnt.c
+++ b/nis/ypclnt.c
@@ -813,6 +813,7 @@ yp_maplist (const char *indomain, struct ypmaplist **outmaplist)
 
   return result;
 }
+libnsl_hidden_nolink_def (yp_maplist, GLIBC_2_0)
 
 const char *
 yperr_string (const int error)