libvirt users - May 2012 - How to specify the libvirtd in connect call

Hi,
    Here is my situation, I install libvirt in a non-default directory
and start libvird with sudo. While I can connect virsh to libvirtd
using "virsh --connect qemu:///system", I fail to connect my app using
"virConnectOpen("qemu:///system")", which complains
"unable to locate
libvirtd daemon in $PATH".  Then, I take another try and add the path
of libvirtd in env variable PATH. Unfortunately, it doesn't work.
    I read through the api reference and find no place to specify this
path explicitly.

Thanks for any tip.
Harvey

2012/5/25 Zhihua Che <zhihua.che at gmail.com>:
> Hi,
> ? ?Here is my situation, I install libvirt in a non-default directory
> and start libvird with sudo. While I can connect virsh to libvirtd
> using "virsh --connect qemu:///system", I fail to connect my app
using
> "virConnectOpen("qemu:///system")", which complains
"unable to locate
> libvirtd daemon in $PATH". ?Then, I take another try and add the path
> of libvirtd in env variable PATH. Unfortunately, it doesn't work.
> ? ?I read through the api reference and find no place to specify this
> path explicitly.
>
> Thanks for any tip.
> Harvey
I guess I resolve this problem.

I test my app with another libvirt.so which is compiled with option
"--with-yajl", and my app can connect to libvirtd.
The previous libvirt.so was compiled with no "--with-yajl"

I don't why this yajl can cause the problem.