Index: libcxx/include/__config
===================================================================
--- libcxx/include/__config
+++ libcxx/include/__config
@@ -994,9 +994,8 @@
 #  endif
 #endif // defined(__APPLE__)
 
-#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \
-    (defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) || \
-    (!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606))
+#if defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) || \
+    !defined(__cpp_aligned_new) || __cpp_aligned_new < 201606
 #  define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
 #endif