Dimitry Andric:  FreeBSD only:  Add the C11 aligned_alloc to <cstdlib> and adjust the inclusion of quick_exit.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@165882 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__config b/include/__config
index 189140f..75b2206 100644
--- a/include/__config
+++ b/include/__config
@@ -252,8 +252,9 @@
 #define _LIBCPP_HAS_NO_CONSTEXPR
 #endif
 
-#if __FreeBSD__
+#if __FreeBSD__ && (__ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L)
 #define _LIBCPP_HAS_QUICK_EXIT
+#define _LIBCPP_HAS_C11_FEATURES
 #endif
 
 #if (__has_feature(cxx_noexcept))