Fix build with Xcode < 7

The _Nullable attribute is not available in older versions.
libsdl-org · Nov 27, 2022 · 9a64aa6 · 9a64aa6
1 parent 1fa80ca
commit 9a64aa6
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/video/cocoa/SDL_cocoaopengl.m b/src/video/cocoa/SDL_cocoaopengl.m
@@ -44,6 +44,16 @@
 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
 #endif
 
+/* _Nullable is available starting Xcode 7 */
+#ifdef __has_feature
+#if __has_feature(nullability)
+#define HAS_FEATURE_NULLABLE
+#endif
+#endif
+#ifndef HAS_FEATURE_NULLABLE
+#define _Nullable
+#endif
+
 static SDL_bool SDL_opengl_async_dispatch = SDL_FALSE;
 
 static void SDLCALL