From 9b0a4cbe9256f3b9dda7a5b6d0611a8449994548 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 30 Oct 2013 22:39:53 -0400
Subject: [PATCH] Add the -Wlogical-op switch when building with GCC 4.3 or
 later.

---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 8d21661f84..974ff27076 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1494,7 +1494,7 @@ if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xy
   if test x$have_gcc43 = xyes ; then
     # These warnings break gcc 4.2 and work on gcc 4.3
     # XXXX020 See if any of these work with earlier versions.
-    CFLAGS="$CFLAGS -Wextra -Warray-bounds"
+    CFLAGS="$CFLAGS -Wextra -Warray-bounds -Wlogical-op"
   fi
 
   if test x$have_shorten64_flag = xyes ; then