fix iOS building

ext/libnatpmp/getgateway.c

@@ -56,10 +56,15 @@ POSSIBILITY OF SUCH DAMAGE.
 #include <sys/sysctl.h>
 #endif
 
-#ifdef __APPLE__
+#if defined(__APPLE__)
 #undef USE_PROC_NET_ROUTE
 #undef USE_SOCKET_ROUTE
-#define USE_SYSCTL_NET_ROUTE
+    #include <TargetConditionals.h>
+    #if TARGET_OS_IPHONE
+		#undef USE_SYSCTL_NET_ROUTE
+    #else
+		#define USE_SYSCTL_NET_ROUTE
+    #endif
 #endif
 
 #if (defined(sun) && defined(__SVR4))

osdep/Binder.hpp

@@ -40,9 +40,15 @@
 #endif
 #endif
 
+#if defined(__APPLE__)
+	#include <TargetConditionals.h>
+#endif
+
 #if (defined(__unix__) || defined(__APPLE__)) && !defined(__LINUX__)
 #include <net/if.h>
+#if !TARGET_OS_IPHONE
 #include <netinet6/in6_var.h>
+#endif
 #include <sys/ioctl.h>
 #endif
 
@@ -311,7 +317,7 @@ class Binder {
 			if (! gotViaProc) {
 				struct ifaddrs* ifatbl = (struct ifaddrs*)0;
 				struct ifaddrs* ifa;
-#if (defined(__unix__) || defined(__APPLE__)) && !defined(__LINUX__)
+#if (defined(__unix__) && !defined(__LINUX__)) || (defined(__APPLE__) && !TARGET_OS_IPHONE)
 				// set up an IPv6 socket so we can check the state of interfaces via SIOCGIFAFLAG_IN6
 				int infoSock = socket(AF_INET6, SOCK_DGRAM, 0);
 #endif
@@ -320,7 +326,7 @@ class Binder {
 					while (ifa) {
 						if ((ifa->ifa_name) && (ifa->ifa_addr)) {
 							InetAddress ip = *(ifa->ifa_addr);
-#if (defined(__unix__) || defined(__APPLE__)) && !defined(__LINUX__)
+#if (defined(__unix__) && !defined(__LINUX__)) || (defined(__APPLE__) && !TARGET_OS_IPHONE)
 							// Check if the address is an IPv6 Temporary Address, macOS/BSD version
 							if (ifa->ifa_addr->sa_family == AF_INET6) {
 								struct sockaddr_in6* sa6 = (struct sockaddr_in6*)ifa->ifa_addr;
@@ -368,7 +374,7 @@ class Binder {
 				else {
 					interfacesEnumerated = false;
 				}
-#if (defined(__unix__) || defined(__APPLE__)) && !defined(__LINUX__)
+#if (defined(__unix__) && !defined(__LINUX__)) || (defined(__APPLE__) && !TARGET_OS_IPHONE)
 				close(infoSock);
 #endif
 			}