From mboxrd@z Thu Jan  1 00:00:00 1970
From: Laurent GUERBY <laurent@guerby.net>
Subject: pktgen-2.9.13 not compiling with gcc 4.9 because of
 -Wdiscarded-qualifiers / 2.9.12 fine
Date: Sun, 10 Apr 2016 00:00:00 +0200
Message-ID: <1460239200.25322.84.camel@guerby.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
To: "dev@dpdk.org" <dev@dpdk.org>
Return-path: <dev-bounces@dpdk.org>
Received: from mx3.tetaneutral.net (mx3.tetaneutral.net [89.234.156.169])
 by dpdk.org (Postfix) with ESMTP id 8BC122FDD
 for <dev@dpdk.org>; Sun, 10 Apr 2016 00:00:01 +0200 (CEST)
Received: from lgnuc (ip165.tetaneutral.net [91.224.148.165])
 by mx3.tetaneutral.net (Postfix) with ESMTP id 3A9603201D2
 for <dev@dpdk.org>; Sun, 10 Apr 2016 00:00:01 +0200 (CEST)
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

Hi,

pktgen-2.9.13 is not compiling with gcc 4.9, see below

2.9.12 is compiling fine with gcc 4.9, so looks like new
IPv6 code recently added is the culprit.

I think -Wdiscarded-qualifiers is available only with gcc 5+=20
https://gcc.gnu.org/gcc-5/changes.html

Sincerely,

Laurent

root@dpdk3:~/pktgen-2.9.13# make
=3D=3D lib
=3D=3D common
  CC wr_copyright_info.o
  CC wr_port_config.o
  CC wr_core_info.o
  CC wr_lscpu.o
  CC wr_utils.o
  CC wr_coremap.o
  CC wr_pcap.o
In file included from /root/pktgen-2.9.13/lib/common/wr_pcap.c:122:0:
/root/pktgen-2.9.13/lib/common/wr_inet.h:755:9: error: unknown option
after =E2=80=98#pragma GCC diagnostic=E2=80=99 kind [-Werror=3Dpragmas]
 #pragma GCC diagnostic ignored "-Wdiscarded-qualifiers"
         ^
/root/pktgen-2.9.13/lib/common/wr_inet.h: In function =E2=80=98inet_ntop6=
=E2=80=99:
/root/pktgen-2.9.13/lib/common/wr_inet.h:758:2: error: return discards
=E2=80=98const=E2=80=99 qualifier from pointer target type [-Werror]
  return inet_ntop(AF_INET6, ip6, buff, len);
  ^
cc1: all warnings being treated as errors
/root/dpdk-2.2.0/mk/internal/rte.compile-pre.mk:126: recipe for target
'wr_pcap.o' failed
make[3]: *** [wr_pcap.o] Error 1
/root/dpdk-2.2.0/mk/rte.extlib.mk:44: recipe for target 'all' failed
make[2]: *** [all] Error 2
/root/dpdk-2.2.0/mk/rte.extsubdir.mk:46: recipe for target 'common'
failed
make[1]: *** [common] Error 2
/root/dpdk-2.2.0/mk/rte.extsubdir.mk:46: recipe for target 'lib' failed
make: *** [lib] Error 2