From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Subject: Re: ipvsadm git head not compiling on RHEL6 Date: Thu, 08 Aug 2013 11:23:12 +0200 Message-ID: <52036380.9020806@redhat.com> References: <1375937999-11660-1-git-send-email-horms@verge.net.au> <52034D12.4070100@redhat.com> <20130808101924.7b363a4e@redhat.com> <52035659.8080503@redhat.com> <20130808111722.6f092b89@redhat.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130808111722.6f092b89@redhat.com> Sender: lvs-devel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Jesper Dangaard Brouer Cc: Ryan O'Hara , Simon Horman , lvs-devel@vger.kernel.org, Wensong Zhang , Julian Anastasov , Thomas Graf On 08/08/2013 11:17 AM, Jesper Dangaard Brouer wrote: > On Thu, 08 Aug 2013 10:27:05 +0200 > Daniel Borkmann wrote: >> On 08/08/2013 10:19 AM, Jesper Dangaard Brouer wrote: >>> >>> I noticed that I get an compile error, when compiling ipvsadm >>> git HEAD 1ea1f41f4 on RHEL6.4. >>> >>> Compile Error: >>> >>> gcc -Wall -Wunused -Wstrict-prototypes -g -o ipvsadm ipvsadm.o config_stream.o dynamic_array.o libipvs/libipvs.a -lpopt -lnl >>> libipvs/libipvs.a(libipvs.o): In function `ipvs_nl_send_message': >>> /home/jbrouer/git/ipvsadm/libipvs/libipvs.c:76: undefined reference to `nl_socket_alloc' >>> /home/jbrouer/git/ipvsadm/libipvs/libipvs.c:91: undefined reference to `nl_socket_free' >>> /home/jbrouer/git/ipvsadm/libipvs/libipvs.c:107: undefined reference to `nl_socket_free' >>> /home/jbrouer/git/ipvsadm/libipvs/libipvs.c:112: undefined reference to `nl_socket_free' >>> collect2: ld returned 1 exit status >>> make: *** [ipvsadm] Error 1 >>> >>> I'll investigate, but hints would be appreciated ;-) >> >> Did you try using libnl3? (Migrating to libnl3 would be better anyway as >> distributions try to get rid of supporting libnl.) > > Nope, I'm using the default libnl coming with RHEL6.4. > > Its not really an option to import/change to libnl3 for RHEL6. But you > could try poking Thomas Graf ;-) > >> I think sometime in libnl*, nl_handle_{alloc,free} was changed to >> nl_socket_{alloc,free}. > > Yes, I can see that your libnl3 commit f48e93c1 (libipvs: libnl3: fix > compilation error) caused this issue. Well, because it broke the build when using libnl3 which should be the way to go for most users. ;-) You could add a fall-back define for libnl1 users, so that there's just a textual replacement to the old name. >> Maybe try changing include locations and libs that are linked against >> to libnl3. > > We officially support ipvsadm for RHEL6, so its not an option to link > against libnl3, as we need to supply an official package... else we/I > would need to have an adaption patch in the RPM (I were looking to > rebase RHEL6 to use the upcoming ipvsadm release).