http://llvm.org/bugs/show_bug.cgi?id=10469 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@135897 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/ext/hash_set b/include/ext/hash_set index e205db8..e20fd41 100644 --- a/include/ext/hash_set +++ b/include/ext/hash_set 
@@ -197,7 +197,9 @@  #include <__hash_table>  #include <functional>   +#if __DEPRECATED  #warning Use of the header <ext/hash_set> is deprecated. Migrate to <unordered_set> +#endif    namespace __gnu_cxx {