[libvirt-users] What's the most recent compatible libvirt and qemu-kvm?

[Eric Blake]

On 06/13/2012 06:09 AM, Eric Blake wrote:
> On 06/12/2012 11:21 PM, Alex Jia wrote:
> 
>>>> 2012-06-12 19:53:42.675+0000: 6076: error :
>>>> qemuCapsComputeCmdFlags:1209 : unsupported configuration: this qemu
>>>> binary requires libvirt to be compiled with yajl
> 
>>> Need to install yajl-devel rpm package.
>> # ./configure -h | grep yajl
>>   --with-yajl             use YAJL for JSON parsing/formatting
>> [default=check]
> 
> Hmm, I'm wondering if libvirt's configure.ac should be enhanced to probe
> 'qemu -version' when qemu support is enabled, and insist on yajl in that
> case.  Obviously, this probe would have to be tolerant of qemu not
> existing, but erroring out earlier than runtime might help people build
> correctly since this seems to be a recurring question on the list.  And
> it must not break on RHEL 5, where qemu is old enough to not require
> yajl and where yajl is not available by default.

In fact, I just proposed a patch to do that:
https://www.redhat.com/archives/libvir-list/2012-June/msg00527.html

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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