(tvOS) support building with tvOS SDK

Makefile.libretro

@@ -139,6 +139,16 @@ else
 	CC_AS += -miphoneos-version-min=5.0
 	PLATFORM_DEFINES := -miphoneos-version-min=5.0
 endif
+
+else ifeq ($(platform), tvos-arm64)
+	TARGET := $(TARGET_NAME)_libretro_tvos.dylib
+	fpic := -fPIC
+	SHARED := -dynamiclib
+
+	ifeq ($(IOSSDK),)
+		IOSSDK := $(shell xcodebuild -version -sdk appletvos Path)
+	endif
+
 # Theos
 else ifeq ($(platform), theos_ios)
 	DEPLOYMENT_IOSVERSION = 5.0