Index: Doxyfile
==================================================================
--- Doxyfile
+++ Doxyfile
@@ -21,11 +21,10 @@
 	     OF_FILE_MANAGER_SUPPORTS_PERMISSIONS		\
 	     OF_FILE_MANAGER_SUPPORTS_SYMLINKS			\
 	     OF_GENERIC(...)=					\
 	     OF_HAVE_BLOCKS					\
 	     OF_HAVE_FILES					\
-	     OF_HAVE_GETIFADDRS					\
 	     OF_HAVE_SANDBOX					\
 	     OF_HAVE_SOCKETS					\
 	     OF_HAVE_THREADS					\
 	     OF_KINDOF(...)=					\
 	     OF_NO_RETURN=					\
@@ -36,13 +35,14 @@
 	     OF_RETURNS_INNER_POINTER=				\
 	     OF_RETURNS_NOT_RETAINED=				\
 	     OF_RETURNS_RETAINED=				\
 	     OF_ROOT_CLASS=					\
 	     OF_SENTINEL=					\
+	     OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES		\
 	     OF_WARN_UNUSED_RESULT=				\
 	     OF_WEAK_UNAVAILABLE=				\
 	     SIGHUP						\
 	     SIGUSR1						\
 	     SIGUSR2
 MACRO_EXPANSION = YES
 EXPAND_ONLY_PREDEF = YES
 IGNORE_PREFIX = OF of_

Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -1763,11 +1763,12 @@
 		;;
 	esac
 
 	AC_CHECK_HEADERS(ifaddrs.h netpacket/packet.h)
 	AC_CHECK_FUNC(getifaddrs, [
-		AC_DEFINE(OF_HAVE_GETIFADDRS, 1, [Whether we have getifaddrs()])
+		AC_DEFINE(OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES, 1,
+			[Whether OFSystemInfo has network interfaces])
 	])
 	AC_CHECK_TYPES([struct sockaddr_ll], [], [], [
 		#ifdef HAVE_NETPACKET_PACKET_H
 		# include <netpacket/packet.h>
 		#endif

Index: src/OFSystemInfo.h
==================================================================
--- src/OFSystemInfo.h
+++ src/OFSystemInfo.h
@@ -19,11 +19,11 @@
 OF_ASSUME_NONNULL_BEGIN
 
 @class OFDictionary OF_GENERIC(KeyType, ObjectType);
 @class OFIRI;
 
-#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+#ifdef OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES
 /**
  * @brief A key in the per-interface dictionary returned by
  *	  @ref networkInterfaces.
  *
  * Possible keys are:
@@ -88,11 +88,11 @@
 @property (class, readonly, nonatomic) bool supportsAltiVec;
 # endif
 # ifdef OF_WINDOWS
 @property (class, readonly, nonatomic, getter=isWindowsNT) bool windowsNT;
 # endif
-# if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+# ifdef OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES
 @property (class, readonly, nonatomic) OFDictionary OF_GENERIC(OFString *,
     OFDictionary OF_GENERIC(OFNetworkInterfaceInfoKey, id) *)
     *networkInterfaces;
 # endif
 #endif
@@ -369,11 +369,11 @@
  * @return Whether the application is running on Windows NT
  */
 + (bool)isWindowsNT;
 #endif
 
-#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+#ifdef OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES
 /**
  * @brief Returns the available (though not necessarily configured) network
  *	  interfaces and information about them.
  *
  * @return The available network interfaces and information about them

Index: src/OFSystemInfo.m
==================================================================
--- src/OFSystemInfo.m
+++ src/OFSystemInfo.m
@@ -122,11 +122,11 @@
 struct X86Regs {
 	uint32_t eax, ebx, ecx, edx;
 };
 #endif
 
-#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+#ifdef OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES
 OFConstantString *const OFNetworkInterfaceAddresses =
     @"OFNetworkInterfaceAddresses";
 OFConstantString *const OFNetworkInterfaceEthernetAddress =
     @"OFNetworkInterfaceEthernetAddress";
 #endif
@@ -836,11 +836,11 @@
 {
 	return !(GetVersion() & 0x80000000);
 }
 #endif
 
-#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+#ifdef OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES
 static OFSocketAddress
 wrapSockaddr(struct sockaddr *sa)
 {
 	OFSocketAddress address;
 

Index: src/objfw-defs.h.in
==================================================================
--- src/objfw-defs.h.in
+++ src/objfw-defs.h.in
@@ -12,11 +12,10 @@
 #undef OF_HAVE_BUILTIN_BSWAP64
 #undef OF_HAVE_CHMOD
 #undef OF_HAVE_CHOWN
 #undef OF_HAVE_FILES
 #undef OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR
-#undef OF_HAVE_GETIFADDRS
 #undef OF_HAVE_IPV6
 #undef OF_HAVE_IPX
 #undef OF_HAVE_LIMITS_H
 #undef OF_HAVE_LINK
 #undef OF_HAVE_MAX_ALIGN_T
@@ -51,8 +50,9 @@
 #undef OF_NINTENDO_3DS
 #undef OF_NINTENDO_DS
 #undef OF_NINTENDO_SWITCH
 #undef OF_NO_SHARED
 #undef OF_OBJFW_RUNTIME
+#undef OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES
 #undef OF_UNIVERSAL
 #undef OF_WII
 #undef OF_WII_U

Index: tests/OFSystemInfoTests.m
==================================================================
--- tests/OFSystemInfoTests.m
+++ tests/OFSystemInfoTests.m
@@ -104,9 +104,15 @@
 
 #ifdef OF_POWERPC
 	[OFStdOut writeFormat: @"[OFSystemInfo] Supports AltiVec: %d\n",
 	    [OFSystemInfo supportsAltiVec]];
 #endif
+
+#ifdef OF_SYSTEM_INFO_HAS_NETWORK_INTERFACES
+	[OFStdOut writeFormat: @"[OFSystemInfo] Network interfaces: %@\n",
+			       [[[OFSystemInfo networkInterfaces] allKeys]
+			       componentsJoinedByString: @", "]];
+#endif
 
 	objc_autoreleasePoolPop(pool);
 }
 @end