>From 7f1beabfcdcb58d90aa78db22b9a123faf298749 Mon Sep 17 00:00:00 2001
From: Paul Eggert <address@hidden>
Date: Tue, 9 Oct 2018 11:16:00 -0700
Subject: [PATCH] Port --enable-gcc-warnings to recent clang

* configure.ac: Disable -Wnull-pointer-arithmetic if clang (Bug#32924).
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 6f3d7338c3..df910280b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1019,9 +1019,10 @@ AC_DEFUN
   gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
   gl_WARN_ADD([-Wno-format-nonliteral])
 
-  # clang is unduly picky about braces.
+  # clang is unduly picky about some things.
   if test "$emacs_cv_clang" = yes; then
     gl_WARN_ADD([-Wno-missing-braces])
+    gl_WARN_ADD([-Wno-null-pointer-arithmetic])
   fi
 
   # This causes too much noise in the MinGW build
-- 
2.17.1