[gcc r9-8816] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:bb885448e07efa1f29a7657faa1c034492efe1dc

commit r9-8816-gbb885448e07efa1f29a7657faa1c034492efe1dc
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Thu Aug 20 00:18:20 2020 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP          |  2 +-
 libstdc++-v3/ChangeLog | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index a8098fbd6e3..7829179094c 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20200819
+20200820
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 2e6a74db8df..a2c0b5e94fa 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,17 @@
+2020-08-19  Jonathan Wakely  <jwakely@redhat.com>
+
+	Backported from master:
+	2020-08-19  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/c++config (_GLIBCXX_DEPRECATED_SUGGEST): New
+	macro for "use 'foo' instead" message in deprecated warnings.
+	* include/bits/ios_base.h (io_state, open_mode, seek_dir)
+	(streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST.
+	* include/std/streambuf (stossc): Replace C++11 attribute
+	with _GLIBCXX_DEPRECATED_SUGGEST.
+	* testsuite/27_io/types/1.cc: Check for deprecated warnings.
+	Also check for io_state, open_mode and seek_dir typedefs.
+
 2020-08-11  Andrea Corallo  <andrea.corallo@arm.com>
 
 	Backported from master: