3 files changed, 38 insertions, 1 deletions
diff --git a/system/include/net/netdb.h b/system/include/net/netdb.h
index ee33be5f..4151ccb5 100644
--- a/system/include/net/netdb.h
+++ b/system/include/net/netdb.h
@@ -1,4 +1,11 @@
 
+#ifndef _NET_NETDB_H
+#define _NET_NETDB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct addrinfo
 {
   int ai_flags;
@@ -25,3 +32,9 @@ struct hostent
   char **h_addr_list;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/system/include/net/netinet/in.h b/system/include/net/netinet/in.h
index 7ac40c03..76532916 100644
--- a/system/include/net/netinet/in.h
+++ b/system/include/net/netinet/in.h
@@ -1,4 +1,11 @@
 
+#ifndef _NET_NETINET_IN_H
+#define _NET_NETINET_IN_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define INET_ADDRSTRLEN 16
 
 #define INADDR_ANY 0
@@ -26,3 +33,9 @@ struct sockaddr_in6 {
   int             sin6_scope_id;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/system/include/sys/socket.h b/system/include/sys/socket.h
index 68e06509..2c23ddb7 100644
--- a/system/include/sys/socket.h
+++ b/system/include/sys/socket.h
@@ -1,4 +1,9 @@
-/* */
+#ifndef _SYS_SOCKET_H
+#define _SYS_SOCKET_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #define SOMAXCONN 128
 #define PF_INET 2
@@ -53,3 +58,9 @@ struct msghdr
   int           msg_flags;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+