From da48d912e4041e453cf254ce07462dc45a329058 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Thu, 2 Apr 2020 13:32:13 +0900
Subject: [PATCH] gethostbyaddr_r: Fix an unsed variable warning

---
 libs/libc/netdb/lib_gethostbyaddrr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/libc/netdb/lib_gethostbyaddrr.c b/libs/libc/netdb/lib_gethostbyaddrr.c
index 062f8b74af..aeb8251644 100644
--- a/libs/libc/netdb/lib_gethostbyaddrr.c
+++ b/libs/libc/netdb/lib_gethostbyaddrr.c
@@ -384,7 +384,9 @@ int gethostbyaddr_r(FAR const void *addr, socklen_t len, int type,
                     size_t buflen, FAR struct hostent **result,
                     FAR int *h_errnop)
 {
+#if defined(CONFIG_NET_LOOPBACK) || defined(CONFIG_NETDB_HOSTFILE)
   struct hostent_s tmp;
+#endif
   int ret;
 
   DEBUGASSERT(addr != NULL && host != NULL && buf != NULL);