From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <[email protected]>
Date: Thu, 11 Jul 2019 18:20:37 +0200
Subject: [PATCH] Don't use -Wno-sign-compare -Wno-conversion -Wno-error, do
 use -Wextra.

Signed-off-by: Peter Jones <[email protected]>
---
 configure.ac         | 14 +++++++++++---
 conf/Makefile.common |  2 +-
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index 59ccda24475..6eb297fdbf6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1480,11 +1480,11 @@ fi
 # Set them to their new values for the tests below.
 CC="$TARGET_CC"
 if test x"$platform" = xemu ; then
-CFLAGS="$TARGET_CFLAGS -Wno-error"
+CFLAGS="$TARGET_CFLAGS"
 elif test "x$TARGET_APPLE_LINKER" = x1 ; then
-CFLAGS="$TARGET_CFLAGS -nostdlib -static -Wno-error"
+CFLAGS="$TARGET_CFLAGS -nostdlib -static"
 else
-CFLAGS="$TARGET_CFLAGS -nostdlib -Wno-error"
+CFLAGS="$TARGET_CFLAGS -nostdlib"
 fi
 CPPFLAGS="$TARGET_CPPFLAGS"
 
@@ -2047,6 +2047,14 @@ if test x"$enable_werror" != xno ; then
   HOST_CFLAGS="$HOST_CFLAGS -Werror"
 fi
 
+AC_ARG_ENABLE([wextra],
+	      [AS_HELP_STRING([--disable-wextra],
+                             [do not use -Wextra when building GRUB])])
+if test x"$enable_wextra" != xno ; then
+  TARGET_CFLAGS="$TARGET_CFLAGS -Wextra"
+  HOST_CFLAGS="$HOST_CFLAGS -Wextra"
+fi
+
 TARGET_CPP="$TARGET_CC -E"
 TARGET_CCAS=$TARGET_CC
 
diff --git a/conf/Makefile.common b/conf/Makefile.common
index 2ff9b39357c..35e14ff017e 100644
--- a/conf/Makefile.common
+++ b/conf/Makefile.common
@@ -66,7 +66,7 @@ grubconfdir = $(sysconfdir)/grub.d
 platformdir = $(pkglibdir)/$(target_cpu)-$(platform)
 starfielddir = $(pkgdatadir)/themes/starfield
 
-CFLAGS_GNULIB = -Wno-undef -Wno-sign-compare -Wno-unused -Wno-unused-parameter -Wno-redundant-decls -Wno-unreachable-code -Wno-conversion
+CFLAGS_GNULIB = -Wno-undef -Wno-unused -Wno-unused-parameter -Wno-redundant-decls -Wno-unreachable-code
 CPPFLAGS_GNULIB = -I$(top_builddir)/grub-core/lib/gnulib -I$(top_srcdir)/grub-core/lib/gnulib
 
 CFLAGS_POSIX = -fno-builtin