From 6e182d7ed36e48373cc4d024c5fdf6e5a77160fd Mon Sep 17 00:00:00 2001
From: yuanjm <yuanjianmin@espressif.com>
Date: Tue, 31 Aug 2021 16:26:55 +0800
Subject: [PATCH] dhcpserver: support cplusplus

Closes https://github.com/espressif/esp-idf/issues/7494

Merges https://github.com/espressif/esp-idf/pull/7526
---
 components/lwip/include/apps/dhcpserver/dhcpserver.h      | 8 ++++++++
 .../lwip/include/apps/dhcpserver/dhcpserver_options.h     | 7 +++++++
 2 files changed, 15 insertions(+)

diff --git a/components/lwip/include/apps/dhcpserver/dhcpserver.h b/components/lwip/include/apps/dhcpserver/dhcpserver.h
index 39a58bbfa9..262ebf43d8 100644
--- a/components/lwip/include/apps/dhcpserver/dhcpserver.h
+++ b/components/lwip/include/apps/dhcpserver/dhcpserver.h
@@ -17,6 +17,10 @@
 #include "sdkconfig.h"
 #include "lwip/ip_addr.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct dhcps_state{
         s16_t state;
 } dhcps_state;
@@ -91,4 +95,8 @@ void dhcps_dns_setserver(const ip_addr_t *dnsserver);
 ip4_addr_t dhcps_dns_getserver(void);
 void dhcps_set_new_lease_cb(dhcps_cb_t cb);
 
+#ifdef __cplusplus
+}
 #endif
+
+#endif /* __DHCPS_H__ */
diff --git a/components/lwip/include/apps/dhcpserver/dhcpserver_options.h b/components/lwip/include/apps/dhcpserver/dhcpserver_options.h
index 38d46f6bff..31a6799283 100644
--- a/components/lwip/include/apps/dhcpserver/dhcpserver_options.h
+++ b/components/lwip/include/apps/dhcpserver/dhcpserver_options.h
@@ -13,6 +13,9 @@
 // limitations under the License.
 #pragma once
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 /** DHCP Options
 
     This macros are not part of the public dhcpserver.h interface.
@@ -132,3 +135,7 @@ typedef enum
     DOMAIN_SEARCH = 119,
     CLASSLESS_ROUTE = 121,
 } dhcp_msg_option;
+
+#ifdef __cplusplus
+}
+#endif