From 85e26832a019ffc00dad9f1eb7e670b85c8eca7f Mon Sep 17 00:00:00 2001
From: Tom Tromey <tom@tromey.com>
Date: Thu, 18 Aug 2016 10:56:11 -0600
Subject: [PATCH] Add -Wimplicit-fallthrough

This adds -Wimplicit-fallthrough to the set of default warnings.

2018-05-04  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
	* warning.m4 (AM_GDB_WARNINGS): Add -Wimplicit-fallthrough.

gdbserver/ChangeLog
2018-05-04  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
---
 gdb/ChangeLog           | 5 +++++
 gdb/configure           | 3 ++-
 gdb/gdbserver/ChangeLog | 4 ++++
 gdb/gdbserver/configure | 3 ++-
 gdb/warning.m4          | 3 ++-
 5 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 27c42130eb..cfdc8b87fd 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2018-05-04  Tom Tromey  <tom@tromey.com>
+
+	* configure: Rebuild.
+	* warning.m4 (AM_GDB_WARNINGS): Add -Wimplicit-fallthrough.
+
 2018-05-04  Tom Tromey  <tom@tromey.com>
 
 	* linux-record.c (record_linux_system_call) <case
diff --git a/gdb/configure b/gdb/configure
index 1aac9303ac..96dd9fa732 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -15366,7 +15366,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wno-sign-compare -Wno-narrowing -Wno-error=maybe-uninitialized \
 -Wno-mismatched-tags \
 -Wno-error=deprecated-register \
--Wsuggest-override"
+-Wsuggest-override \
+-Wimplicit-fallthrough"
 
 case "${host}" in
   *-*-mingw32*)
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 4726ef4402..f1dd1ddc97 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,7 @@
+2018-05-04  Tom Tromey  <tom@tromey.com>
+
+	* configure: Rebuild.
+
 2018-05-04  Jan Kratochvil  <jan.kratochvil@redhat.com>
 	    Pedro Alves <palves@redhat.com>
 
diff --git a/gdb/gdbserver/configure b/gdb/gdbserver/configure
index 22b4c8af68..919ed31665 100755
--- a/gdb/gdbserver/configure
+++ b/gdb/gdbserver/configure
@@ -7173,7 +7173,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wno-sign-compare -Wno-narrowing -Wno-error=maybe-uninitialized \
 -Wno-mismatched-tags \
 -Wno-error=deprecated-register \
--Wsuggest-override"
+-Wsuggest-override \
+-Wimplicit-fallthrough"
 
 case "${host}" in
   *-*-mingw32*)
diff --git a/gdb/warning.m4 b/gdb/warning.m4
index f176a3291a..1cc3c68398 100644
--- a/gdb/warning.m4
+++ b/gdb/warning.m4
@@ -43,7 +43,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wno-sign-compare -Wno-narrowing -Wno-error=maybe-uninitialized \
 -Wno-mismatched-tags \
 -Wno-error=deprecated-register \
--Wsuggest-override"
+-Wsuggest-override \
+-Wimplicit-fallthrough"
 
 case "${host}" in
   *-*-mingw32*)
-- 
2.34.1