diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 6c277ff728a6..fdf992ef1012 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,8 @@
 2018-08-16  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/std/ostream (basic_ostream::sentry::~sentry): Suppress
+	deprecation warnings for using uncaught_exception().
+
 	PR libstdc++/86447
 	* src/c++11/cow-stdexcept.cc [_GLIBCXX_FULLY_DYNAMIC_STRING]
 	(logic_error::logic_error(logic_error&&))
diff --git a/libstdc++-v3/include/std/ostream b/libstdc++-v3/include/std/ostream
index 448a92881886..2099294fd920 100644
--- a/libstdc++-v3/include/std/ostream
+++ b/libstdc++-v3/include/std/ostream
@@ -444,6 +444,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       explicit
       sentry(basic_ostream<_CharT, _Traits>& __os);
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
       /**
        *  @brief  Possibly flushes the stream.
        *
@@ -461,6 +463,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	      _M_os.setstate(ios_base::badbit);
 	  }
       }
+#pragma GCC diagnostic pop
 
       /**
        *  @brief  Quick status checking.