From 72d45079182c47f1c029494acb2e2c3f61cbdea8 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Wed, 10 Jan 2018 10:42:40 -0800
Subject: [PATCH] Added availability check to fix compiler warning for symbol
 only available on tvOS 11.0 and newer

---
 src/render/metal/SDL_render_metal.m | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/render/metal/SDL_render_metal.m b/src/render/metal/SDL_render_metal.m
index 97cd218a4bb69..f7af72d428fc3 100644
--- a/src/render/metal/SDL_render_metal.m
+++ b/src/render/metal/SDL_render_metal.m
@@ -653,14 +653,14 @@ - (void)dealloc
 #if defined(__MACOSX__)
     maxtexsize = 16384;
 #elif defined(__TVOS__)
+    maxtexsize = 8192;
 #ifdef __TVOS_11_0
-    if ([mtldevice supportsFeatureSet:MTLFeatureSet_tvOS_GPUFamily2_v1]) {
-        maxtexsize = 16384;
-    } else
-#endif
-    {
-        maxtexsize = 8192;
+    if (@available(tvOS 11.0, *)) {
+        if ([mtldevice supportsFeatureSet:MTLFeatureSet_tvOS_GPUFamily2_v1]) {
+            maxtexsize = 16384;
+        }
     }
+#endif
 #else
 #ifdef __IPHONE_11_0
     if ([mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily4_v1]) {