[PATCH 3/3] Add -Wstrict-null-sentinel to gdbsupport/warning.m4

[Simon Marchi]

Commit 85f0dd3ce ("[gdb] Fix -Wstrict-null-sentinel warnings") fixed
some violations of -Wstrict-null-sentinel.  If we want to enforce this
warning, I think we should enable it in our warning.m4 file.

gdbsupport/ChangeLog:

	* warning.m4: Add -Wstrict-null-sentinel.
	* configure: Re-generate.

gdbserver/ChangeLog:

	* configure: Re-generate.

gdb/ChangeLog:

	* configure: Re-generate.
---
 gdb/configure         | 3 ++-
 gdbserver/configure   | 3 ++-
 gdbsupport/configure  | 3 ++-
 gdbsupport/warning.m4 | 3 ++-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/gdb/configure b/gdb/configure
index a1d150649729..2ce910c808ce 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -16111,7 +16111,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wdeprecated-copy \
 -Wdeprecated-copy-dtor \
 -Wredundant-move \
--Wmissing-declarations"
+-Wmissing-declarations \
+-Wstrict-null-sentinel"
 
 case "${host}" in
   *-*-mingw32*)
diff --git a/gdbserver/configure b/gdbserver/configure
index 4b9d7e3718fa..bd0e667af69b 100755
--- a/gdbserver/configure
+++ b/gdbserver/configure
@@ -9815,7 +9815,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wdeprecated-copy \
 -Wdeprecated-copy-dtor \
 -Wredundant-move \
--Wmissing-declarations"
+-Wmissing-declarations \
+-Wstrict-null-sentinel"
 
 case "${host}" in
   *-*-mingw32*)
diff --git a/gdbsupport/configure b/gdbsupport/configure
index 197749b5d0ca..1f7d72cc5852 100755
--- a/gdbsupport/configure
+++ b/gdbsupport/configure
@@ -10853,7 +10853,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wdeprecated-copy \
 -Wdeprecated-copy-dtor \
 -Wredundant-move \
--Wmissing-declarations"
+-Wmissing-declarations \
+-Wstrict-null-sentinel"
 
 case "${host}" in
   *-*-mingw32*)
diff --git a/gdbsupport/warning.m4 b/gdbsupport/warning.m4
index e2b8a43ddbd5..75bc21ca4261 100644
--- a/gdbsupport/warning.m4
+++ b/gdbsupport/warning.m4
@@ -50,7 +50,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wdeprecated-copy \
 -Wdeprecated-copy-dtor \
 -Wredundant-move \
--Wmissing-declarations"
+-Wmissing-declarations \
+-Wstrict-null-sentinel"
 
 case "${host}" in
   *-*-mingw32*)
-- 
2.25.0