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diff --git a/gfx/skia/include/core/SkPostConfig.h b/gfx/skia/include/core/SkPostConfig.h
--- a/gfx/skia/include/core/SkPostConfig.h
+++ b/gfx/skia/include/core/SkPostConfig.h
@@ -277,19 +277,28 @@
#endif
//////////////////////////////////////////////////////////////////////
#ifndef SK_OVERRIDE
#if defined(_MSC_VER)
#define SK_OVERRIDE override
#elif defined(__clang__)
+#if __has_feature(cxx_override_control)
// Some documentation suggests we should be using __attribute__((override)),
// but it doesn't work.
#define SK_OVERRIDE override
+#elif defined(__has_extension)
+#if __has_extension(cxx_override_control)
+#define SK_OVERRIDE override
+#endif
+#endif
+#ifndef SK_OVERRIDE
+#define SK_OVERRIDE
+#endif
#else
// Linux GCC ignores "__attribute__((override))" and rejects "override".
#define SK_OVERRIDE
#endif
#endif
//////////////////////////////////////////////////////////////////////
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