From: Vladimir Serbinenko <phcoder@google.com>
Date: Mon, 25 Mar 2019 16:43:18 +0000 (+0100)
Subject: clang: Pair -Qn with -Qunused-arguments.
X-Git-Tag: grub-2.04-rc1~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4dace5f60eac8b91c2e82a3fce8a2e3d1f004f1c;p=thirdparty%2Fgrub.git

clang: Pair -Qn with -Qunused-arguments.

When assembling module wirh clang -Qn ends up on command line but later ignored
To avoid it breaking the compile, add -Qunused-arguments.

Signed-off-by: Vladimir Serbinenko <phcoder@google.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---

diff --git a/configure.ac b/configure.ac
index 2f53a5683..8578d01b7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1228,12 +1228,12 @@ if test "x$target_cpu" = xarm; then
 fi
 
 AC_CACHE_CHECK([whether option -Qn works], grub_cv_target_cc_qn, [
-  CFLAGS="$TARGET_CFLAGS -Qn -Werror"
+  CFLAGS="$TARGET_CFLAGS -Qn -Qunused-arguments -Werror"
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
 		    [grub_cv_target_cc_qn=yes],
 		    [grub_cv_target_cc_qn=no])])
 if test "x$grub_cv_target_cc_qn" = xyes; then
-  TARGET_CFLAGS="$TARGET_CFLAGS -Qn"
+  TARGET_CFLAGS="$TARGET_CFLAGS -Qn -Qunused-arguments"
 fi
 
 #