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@xxxxxxxxxx +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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