Index: src/OFTCPSocket.m
==================================================================
--- src/OFTCPSocket.m
+++ src/OFTCPSocket.m
@@ -364,11 +364,13 @@
 - (uint16_t)bindToHost: (OFString *)host
 		  port: (uint16_t)port
 {
 	of_resolver_result_t **results;
 	const int one = 1;
+#if !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
 	of_socket_address_t address;
+#endif
 
 	if (_socket != INVALID_SOCKET)
 		@throw [OFAlreadyConnectedException exceptionWithSocket: self];
 
 	if (_SOCKS5Host != nil)

Index: src/OFUDPSocket.m
==================================================================
--- src/OFUDPSocket.m
+++ src/OFUDPSocket.m
@@ -330,11 +330,13 @@
 
 - (uint16_t)bindToHost: (OFString *)host
 		  port: (uint16_t)port
 {
 	of_resolver_result_t **results;
+#if !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
 	of_socket_address_t address;
+#endif
 
 	results = of_resolve_host(host, port, SOCK_DGRAM);
 	@try {
 #if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
 		int flags;

Index: src/socket.h
==================================================================
--- src/socket.h
+++ src/socket.h
@@ -72,10 +72,14 @@
 #ifndef OF_WINDOWS
 typedef int of_socket_t;
 #else
 typedef SOCKET of_socket_t;
 #endif
+
+#ifdef OF_WII
+typedef u8 sa_family_t;
+#endif
 
 /*!
  * @enum of_socket_address_type_t socket.h ObjFW/socket.h
  */
 typedef enum {

Index: src/socket.m
==================================================================
--- src/socket.m
+++ src/socket.m
@@ -535,11 +535,11 @@
 		maxZerosStart = zerosStart;
 		maxZerosCount = zerosCount;
 	}
 
 	if (maxZerosCount >= 2) {
-		for (uint_fast8_t i = 0; i < maxZerosStart; i += 2) {
+		for (int_fast8_t i = 0; i < maxZerosStart; i += 2) {
 			[string appendFormat:
 			    (first ? @"%x" : @":%x"),
 			    (addrIn6->sin6_addr.s6_addr[i] << 8) |
 			    addrIn6->sin6_addr.s6_addr[i + 1]];
 			first = false;
@@ -546,11 +546,11 @@
 		}
 
 		[string appendString: @"::"];
 		first = true;
 
-		for (uint_fast8_t i = maxZerosStart + (maxZerosCount * 2);
+		for (int_fast8_t i = maxZerosStart + (maxZerosCount * 2);
 		    i < 16; i += 2) {
 			[string appendFormat:
 			    (first ? @"%x" : @":%x"),
 			    (addrIn6->sin6_addr.s6_addr[i] << 8) |
 			    addrIn6->sin6_addr.s6_addr[i + 1]];

Index: src/socket_helpers.h
==================================================================
--- src/socket_helpers.h
+++ src/socket_helpers.h
@@ -85,12 +85,12 @@
     net_recvfrom(sock, buf, len, flags, addr, addrlen)
 # define select(nfds, readfds, writefds, errorfds, timeout) \
     net_select(nfds, readfds, writefds, errorfds, timeout)
 # define send(sock, buf, len, flags) net_send(sock, buf, len, flags)
 # define sendto(sock, buf, len, flags, addr, addrlen) \
-    net_sendto(sock, buf, len, flags, addr, addrlen)
+    net_sendto(sock, buf, len, flags, (struct sockaddr *)(addr), addrlen)
 # define setsockopt(sock, level, name, value, len) \
     net_setsockopt(sock, level, name, value, len)
 # define socket(domain, type, proto) net_socket(domain, type, proto)
 typedef u32 in_addr_t;
 typedef u32 nfds_t;
 #endif