From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Subject: Re: iproute2 build error due to sr-ipv6 lwtunnel Date: Thu, 04 May 2017 11:55:22 +0200 Message-ID: <590AFA8A.30602@iogearbox.net> References: <590AF0C3.6070006@iogearbox.net> <3c0c0584-338d-47d0-76d4-e4408decc2c1@uclouvain.be> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, stephen@networkplumber.org To: David Lebrun Return-path: Received: from www62.your-server.de ([213.133.104.62]:33896 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751319AbdEDJzY (ORCPT ); Thu, 4 May 2017 05:55:24 -0400 In-Reply-To: <3c0c0584-338d-47d0-76d4-e4408decc2c1@uclouvain.be> Sender: netdev-owner@vger.kernel.org List-ID: On 05/04/2017 11:28 AM, David Lebrun wrote: > On 05/04/2017 11:13 AM, Daniel Borkmann wrote: >> Hi David, >> >> I'm getting the following build error from e8493916a8ed ("iproute: >> add support for SR-IPv6 lwtunnel encapsulation"). Reverting your >> commit makes iproute2 build again for me. Please take a look. > > Hi Daniel, > > This is because linux/seg6.h does an include of linux/in6.h (cf kernel > commit ea3ebc73b46fbdb049dafd47543bb22efaa09c8e "uapi: fix linux/seg6.h > and linux/seg6_iptunnel.h userspace compilation errors"), and iproute2's > include/utils.h requires the system /usr/include/resolv.h, which itself > includes /usr/include/netinet/in.h, re-defining struct in6_addr. > > However, netinet/in.h protects some struct definitions with #ifndef > __USE_KERNEL_IPV6_DEFS, which is explicitly defined in > iproute_lwtunnel.c, thus avoiding this specific issue. > > What is your glibc version ? Ok, I see, on one of my machines I have an old user space, but latest net/net-next kernel (+ installed kernel headers) and iproute2. glibc version there is 2.18.