Fixed building with Xcode 10.0

Xcode/SDL/SDL.xcodeproj/project.pbxproj

@@ -2614,7 +2614,7 @@
 		0867D690FE84028FC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0900;
+				LastUpgradeCheck = 1000;
 			};
 			buildConfigurationList = 0073178E0858DB0500B2BC32 /* Build configuration list for PBXProject "SDL" */;
 			compatibilityVersion = "Xcode 3.2";
@@ -3112,11 +3112,13 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
@@ -3153,7 +3155,6 @@
 		00CFA622106A567900758660 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_32_64_BIT)";
 				CLANG_LINK_OBJC_RUNTIME = NO;
 				COMBINE_HIDPI_IMAGES = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1.0.0;
@@ -3206,11 +3207,13 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
@@ -3247,7 +3250,6 @@
 		00CFA628106A568900758660 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_32_64_BIT)";
 				CLANG_LINK_OBJC_RUNTIME = NO;
 				COMBINE_HIDPI_IMAGES = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1.0.0;

src/joystick/hidapi/SDL_hidapi_xbox360.c

@@ -752,7 +752,9 @@ HIDAPI_DriverXbox360_Update(SDL_Joystick *joystick, hid_device *dev, void *conte
 static void
 HIDAPI_DriverXbox360_Quit(SDL_Joystick *joystick, hid_device *dev, void *context)
 {
+#if defined(SDL_JOYSTICK_HIDAPI_WINDOWS_XINPUT) || defined(SDL_JOYSTICK_HIDAPI_WINDOWS_GAMING_INPUT)
     SDL_DriverXbox360_Context *ctx = (SDL_DriverXbox360_Context *)context;
+#endif
 
 #ifdef SDL_JOYSTICK_HIDAPI_WINDOWS_XINPUT
     if (ctx->xinput_enabled) {