Windows support by Ruben Van Boxem. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@142235 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/unordered_map b/include/unordered_map index cb30fc8..56645e0 100644 --- a/include/unordered_map +++ b/include/unordered_map 
@@ -319,7 +319,9 @@  #include <functional>  #include <stdexcept>   +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)  #pragma GCC system_header +#endif    _LIBCPP_BEGIN_NAMESPACE_STD