From e912b36d95a3c26a6021eeb27e663bd05910a9b4 Mon Sep 17 00:00:00 2001
From: Lubomir Rintel <lkundrak@v3.sk>
Date: Mon, 18 Dec 2017 08:27:29 +0100
Subject: [PATCH] build: enable unused-but-set warning

It was disabled for shady reasons (not checking write() return value)
that are long gone. Worse even, it hid some real bugs.
---
 m4/compiler_options.m4 | 1 -
 1 file changed, 1 deletion(-)

diff --git a/m4/compiler_options.m4 b/m4/compiler_options.m4
index c0b07e5b4b..b96e3503fa 100644
--- a/m4/compiler_options.m4
+++ b/m4/compiler_options.m4
@@ -86,7 +86,6 @@ if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
 		      -Wno-missing-field-initializers \
 		      -Wno-pragmas \
 		      -Wno-sign-compare \
-		      -Wno-unused-but-set-variable \
 		      -Wno-unused-parameter \
 		      ; do
 		dnl GCC 4.4 does not warn when checking for -Wno-* flags (https://gcc.gnu.org/wiki/FAQ#wnowarning)