[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] trouble with building latest xen code
On 20 February 2014 13:28, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote: > On Thu, 2014-02-20 at 13:15 +0100, Aastha Mehta wrote: >> On 20 February 2014 11:43, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote: >> > On Thu, 2014-02-20 at 11:40 +0100, Aastha Mehta wrote: >> >> I just figured out the problem. While building the Xen code, I blindly >> >> used all the dependencies listed on >> >> http://wiki.xen.org/wiki/Compiling_Xen_From_Source and used apt-get to >> >> install libyajl-dev. Looks like apt-cache has older version of the >> >> library available. Even though I later installed the latest yajl from >> >> the github, the default library being used was the older version. I >> >> uninstalled the older version and then re-installed the latest and >> >> everything works now. >> > >> > Which older version were you using and on which distro? >> > >> > If Xen doesn't build with the packages present in some major distro I >> > think we want to know about it. >> > >> > Ian. >> > >> > >> >> Distro - Ubuntu 12.04.3 LTS (Precise), >> Kernel - 3.13.2 >> Xen version - 4.4 unstable (custom build) >> yajl older version: 1.0.12-2 >> # aptitude versions libyajl-dev >> Package libyajl-dev: >> pi 1.0.12-2 precise 500 >> Package libyajl-dev:i386: >> p 1.0.12-2 precise 500 >> >> Latest yajl version available: 2.0.1 >> >> There is some change in the yajl code between version 1 and 2, which >> prevents the tools, specifically libxl from compiling. > > Thanks. > > libxl is supposed to handle yajl1 as well as yajl2, detected at compile > time. The only references to yajl_gen_config I can see are correctly > within #ifdef HAVE_YAJL_V2 blocks and shouldn't be used when compiling > against yajl1. > > Does Ubuntu's yajl 1.0.12 include /usr/include/yajl/yajl_version.h? This > is used to detect which version, via the YAJL_MAJOR #define in it. > http://packages.ubuntu.com/precise/amd64/libyajl-dev/filelist says it > was there and it contained: > #define YAJL_MAJOR 1 > #define YAJL_MINOR 0 > #define YAJL_MICRO 12 > > so I think libxl should have been using the yajl1 compatible code in > libxl_json.h > > Did you by any chance have a mixture of packaged and unpackaged versions > of libyajl installed when you saw this failure? > > Ian. > That might have been the case actually. I do remember downloading and installing all sorts of dependencies before building xen. The yajl_version.h file was there, but because of a mixture of versions installed things must have got messed up. Thanks, Aastha. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxx http://lists.xen.org/xen-users
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