Index: include/std/system_error
===================================================================
--- include/std/system_error	(revision 246076)
+++ include/std/system_error	(working copy)
@@ -268,6 +268,8 @@
 
     // DR 804.
   private:
+    friend class hash<error_condition>;
+
     int 			_M_value;
     const error_category* 	_M_cat;
   };
@@ -372,8 +374,6 @@
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace
 
-#ifndef _GLIBCXX_COMPATIBILITY_CXX0X
-
 #include <bits/functional_hash.h>
 
 namespace std _GLIBCXX_VISIBILITY(default)
@@ -380,6 +380,7 @@
 {
 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
+#ifndef _GLIBCXX_COMPATIBILITY_CXX0X
   // DR 1182.
   /// std::hash specialization for error_code.
   template<>
@@ -393,12 +394,25 @@
 	return std::_Hash_impl::__hash_combine(__e._M_cat, __tmp);
       }
     };
+#endif // _GLIBCXX_COMPATIBILITY_CXX0X
 
+  // DR 2686.
+  /// std::hash specialization for error_condition.
+  template<>
+    struct hash<error_condition>
+    : public __hash_base<size_t, error_condition>
+    {
+      size_t
+      operator()(const error_condition& __e) const noexcept
+      {
+	const size_t __tmp = std::_Hash_impl::hash(__e._M_value);
+	return std::_Hash_impl::__hash_combine(__e._M_cat, __tmp);
+      }
+    };
+
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace
 
-#endif // _GLIBCXX_COMPATIBILITY_CXX0X
-
 #endif // C++11
 
 #endif // _GLIBCXX_SYSTEM_ERROR
Index: testsuite/20_util/hash/operators/size_t.cc
===================================================================
--- testsuite/20_util/hash/operators/size_t.cc	(revision 246076)
+++ testsuite/20_util/hash/operators/size_t.cc	(working copy)
@@ -43,6 +43,7 @@
 void test01()
 {
   do_test<std::error_code>();
+  do_test<std::error_condition>();
 }
 
 int main()
Index: testsuite/20_util/hash/requirements/explicit_instantiation.cc
===================================================================
--- testsuite/20_util/hash/requirements/explicit_instantiation.cc	(revision 246076)
+++ testsuite/20_util/hash/requirements/explicit_instantiation.cc	(working copy)
@@ -40,6 +40,7 @@
 template class std::hash<void*>;
 template class std::hash<std::string>;
 template class std::hash<std::error_code>;
+template class std::hash<std::error_condition>;
 
 #ifdef _GLIBCXX_USE_WCHAR_T
 template class std::hash<wchar_t>;