diff --git a/libcxx/include/compare b/libcxx/include/compare
--- a/libcxx/include/compare
+++ b/libcxx/include/compare
@@ -126,7 +126,6 @@
 
 #include <__config>
 #include <type_traits>
-#include <array>
 
 #ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
 #pragma GCC system_header
@@ -701,8 +700,8 @@
 
 template <size_t _Size>
 constexpr _ClassifyCompCategory
-__compute_comp_type(array<_ClassifyCompCategory, _Size> __types) {
-  array<int, _CCC_Size> __seen = {};
+__compute_comp_type(_ClassifyCompCategory (&__types)[_Size]) {
+  int __seen[_CCC_Size] = {};
   for (auto __type : __types)
     ++__seen[__type];
   if (__seen[_None])
@@ -723,7 +722,7 @@
 template <class ..._Ts>
 constexpr auto __get_comp_type() {
   using _CCC = _ClassifyCompCategory;
-  constexpr array<_CCC, sizeof...(_Ts)> __type_kinds{{__comp_detail::__type_to_enum<_Ts>()...}};
+  constexpr _CCC __type_kinds[sizeof...(_Ts)] = { __comp_detail::__type_to_enum<_Ts>()... };
   constexpr _CCC _Cat = sizeof...(_Ts) == 0 ? _StrongOrd
       : __compute_comp_type(__type_kinds);
   if constexpr (_Cat == _None)