From 737fce72cce6097a7f55b558f4798ec931fa5057 Mon Sep 17 00:00:00 2001
From: mathiasbredholt <mathiasbredholt@gmail.com>
Date: Thu, 24 Sep 2020 09:28:51 +0200
Subject: [PATCH] lwip: Changed to C linkage for fixing bug when using mixed
 C/C++ code

Merges https://github.com/espressif/esp-idf/pull/5900
---
 components/lwip/port/esp32/include/netdb.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/components/lwip/port/esp32/include/netdb.h b/components/lwip/port/esp32/include/netdb.h
index 363154f68..7f5d67a46 100644
--- a/components/lwip/port/esp32/include/netdb.h
+++ b/components/lwip/port/esp32/include/netdb.h
@@ -32,9 +32,17 @@
 
 #include "lwip/netdb.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+  
 #ifdef ESP_PLATFORM
 int getnameinfo(const struct sockaddr *addr, socklen_t addrlen,
                 char *host, socklen_t hostlen,
                 char *serv, socklen_t servlen, int flags);
 
 #endif
+
+#ifdef __cplusplus
+}
+#endif