From 43cf631bc10097448db041639ad07f84f647017e Mon Sep 17 00:00:00 2001
From: Etienne Dechamps <etienne@edechamps.fr>
Date: Sun, 7 Jan 2018 14:48:08 +0000
Subject: [PATCH] Fix "use of GNU empty initializer extension" warning.

---
 src/ifconfig.c     | 4 ++--
 src/linux/device.c | 2 +-
 src/net_packet.c   | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/ifconfig.c b/src/ifconfig.c
index f4b84537..3723c97a 100644
--- a/src/ifconfig.c
+++ b/src/ifconfig.c
@@ -86,7 +86,7 @@ bool ifconfig_footer(FILE *out) {
 static subnet_t ipv4, ipv6;
 
 void ifconfig_address(FILE *out, const char *value) {
-	subnet_t address = {};
+	subnet_t address = {NULL};
 	char address_str[MAXNETSTR];
 
 	if(!str2net(&address, value) || !net2str(address_str, sizeof(address_str), &address)) {
@@ -168,7 +168,7 @@ void ifconfig_address(FILE *out, const char *value) {
 }
 
 void ifconfig_route(FILE *out, const char *value) {
-	subnet_t subnet = {}, gateway = {};
+	subnet_t subnet = {NULL}, gateway = {NULL};
 	char subnet_str[MAXNETSTR] = "", gateway_str[MAXNETSTR] = "";
 	char *sep = strchr(value, ' ');
 
diff --git a/src/linux/device.c b/src/linux/device.c
index 54ea5dca..2c40ead0 100644
--- a/src/linux/device.c
+++ b/src/linux/device.c
@@ -117,7 +117,7 @@ static bool setup_device(void) {
 	logger(DEBUG_ALWAYS, LOG_INFO, "%s is a %s", device, device_info);
 
 	if(ifr.ifr_flags & IFF_TAP) {
-		struct ifreq ifr_mac = {};
+		struct ifreq ifr_mac = {{{0}}};
 
 		if(!ioctl(device_fd, SIOCGIFHWADDR, &ifr_mac)) {
 			memcpy(mymac.x, ifr_mac.ifr_hwaddr.sa_data, ETH_ALEN);
diff --git a/src/net_packet.c b/src/net_packet.c
index 9c913cab..c8f48d32 100644
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -878,7 +878,7 @@ bool send_sptps_data(node_t *to, node_t *from, int type, const void *data, size_
 	if(relay_supported) {
 		if(direct) {
 			/* Inform the recipient that this packet was sent directly. */
-			node_id_t nullid = {};
+			node_id_t nullid = {{0}};
 			memcpy(buf_ptr, &nullid, sizeof(nullid));
 			buf_ptr += sizeof(nullid);
 		} else {
@@ -1579,7 +1579,7 @@ static node_t *try_harder(const sockaddr_t *from, const vpn_packet_t *pkt) {
 
 static void handle_incoming_vpn_packet(listen_socket_t *ls, vpn_packet_t *pkt, sockaddr_t *addr) {
 	char *hostname;
-	node_id_t nullid = {};
+	node_id_t nullid = {{0}};
 	node_t *from, *to;
 	bool direct = false;
 
-- 
2.20.1