default features: make musl usable without feature test macros

[musl] / include / net / ethernet.h

diff --git a/include/net/ethernet.h b/include/net/ethernet.h
index a536502..c8d4177 100644 (file)
--- a/include/net/ethernet.h
+++ b/include/net/ethernet.h
@@ -1,5 +1,9 @@
-#ifndef __NET_ETHERNET_H
-#define __NET_ETHERNET_H 1
+#ifndef _NET_ETHERNET_H
+#define _NET_ETHERNET_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #include <stdint.h>
 #include <sys/types.h>
@@ -44,4 +48,8 @@ struct ether_header {
 #define        ETHERMTU        ETH_DATA_LEN
 #define        ETHERMIN        (ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif