diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h
index 2556d11..99a200a 100644
--- a/libc/include/sys/cdefs.h
+++ b/libc/include/sys/cdefs.h
@@ -327,6 +327,13 @@
 
 #define __overloadable __attribute__((overloadable))
 
+// TODO(pirama) Remove this version check after switching to clang-r445002
+#if __clang_major__ == 14 && __clang_patchlevel__ >= 2
+#define __diagnose_as_builtin(...) __attribute__((diagnose_as_builtin(__VA_ARGS__)))
+#else
+#define __diagnose_as_builtin(...)
+#endif
+
 /* Used to tag non-static symbols that are private and never exposed by the shared library. */
 #define __LIBC_HIDDEN__ __attribute__((visibility("hidden")))