diff --git a/lib/lwres/getnet.c b/lib/lwres/getnet.c
index 76ee65dc85..223a9f1563 100644
--- a/lib/lwres/getnet.c
+++ b/lib/lwres/getnet.c
@@ -46,8 +46,15 @@ setnetent(int stayopen) {
 }
 #endif
 
+#ifdef ISC_LWRES_SETNETENTINT
+int
+endnetent() {
+	return (0);
+}
+#else
 void
 endnetent() {
 	/* empty */
 }
+#endif
 
diff --git a/lib/lwres/include/lwres/netdb.h.in b/lib/lwres/include/lwres/netdb.h.in
index 375c057d42..5d79dae29a 100644
--- a/lib/lwres/include/lwres/netdb.h.in
+++ b/lib/lwres/include/lwres/netdb.h.in
@@ -46,6 +46,11 @@
  */
 @ISC_LWRES_SETNETENTINT@
 
+/*
+ * Define if endhostent returns int.
+ */
+@ISC_LWRES_ENDNETENTINT@
+
 /*
  * Define if gethostbyaddr takes a void * as first arguement.
  */
@@ -61,6 +66,11 @@
  */
 @ISC_LWRES_ENDHOSTENTINT@
 
+/*
+ * Define if h_errno if not defined by netdb.h.
+ */
+@ISC_LWRES_NEEDHERRNO@
+
 #ifdef ISC_LWRES_NEEDADDRINFO
 struct  addrinfo {
         int             ai_flags;       /* AI_PASSIVE, AI_CANONNAME */