diff --git a/include/__config b/include/__config
index 43fbf87d..aa8bc448 100644
--- a/include/__config
+++ b/include/__config
@@ -567,6 +567,16 @@ template <unsigned> struct __static_assert_check {};
 #define _LIBCPP_WCTYPE_IS_MASK
 #endif
 
+#if defined(__APPLE__)
+#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
+#  define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 0
+#endif
+#endif
+
+#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
+#  define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 1
+#endif
+
 #ifndef _LIBCPP_STD_VER
 #  if  __cplusplus <= 201103L
 #    define _LIBCPP_STD_VER 11
diff --git a/include/utility b/include/utility
index 303dd4e1..2c1f62cc 100644
--- a/include/utility
+++ b/include/utility
@@ -272,10 +272,10 @@ struct _LIBCPP_TYPE_VIS_ONLY pair
                                       )
             : first(__p.first), second(__p.second) {}
 
-#ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
+#if !defined(_LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS) && _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
     _LIBCPP_INLINE_VISIBILITY
     pair(const pair& __p) = default;
-#elif !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)  // default the copy ctor in C++03
+#elif !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) || !_LIBCPP_TRIVIAL_PAIR_COPY_CTOR
     _LIBCPP_INLINE_VISIBILITY
     pair(const pair& __p)
         _NOEXCEPT_(is_nothrow_copy_constructible<first_type>::value &&