From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58739) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaTQr-00031X-Ui for qemu-devel@nongnu.org; Tue, 24 Mar 2015 14:20:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YaTQc-0003OO-3Z for qemu-devel@nongnu.org; Tue, 24 Mar 2015 14:20:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47887) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaTQb-0003O6-VH for qemu-devel@nongnu.org; Tue, 24 Mar 2015 14:19:50 -0400 From: John Snow Date: Tue, 24 Mar 2015 14:19:43 -0400 Message-Id: <1427221186-28404-2-git-send-email-jsnow@redhat.com> In-Reply-To: <1427221186-28404-1-git-send-email-jsnow@redhat.com> References: <1427221186-28404-1-git-send-email-jsnow@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v4 1/4] configure: handle clang -nopie argument warning List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, John Snow , stefanha@redhat.com From: Stefan Hajnoczi gcc 4.9.2 treats -nopie as an error: cc: error: unrecognized command line option =E2=80=98-nopie=E2=80=99 clang 3.5.0 treats -nopie as a warning: clang: warning: argument unused during compilation: '-nopie' The causes ./configure to fail with clang: ERROR: configure test passed without -Werror but failed with -Werror. Make the -nopie test use -Werror so that compile_prog works for both gcc and clang. Signed-off-by: Stefan Hajnoczi Signed-off-by: John Snow --- configure | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure b/configure index 589798e..7a8637e 100755 --- a/configure +++ b/configure @@ -1589,7 +1589,7 @@ EOF fi fi =20 - if compile_prog "-fno-pie" "-nopie"; then + if compile_prog "-Werror -fno-pie" "-nopie"; then CFLAGS_NOPIE=3D"-fno-pie" LDFLAGS_NOPIE=3D"-nopie" fi --=20 2.1.0