Now, i answer myself ...
I wanted to compile libvirtd on xen-4.2
but on [3] wrote: ...current version of libvirt is not compatible with xen 4.2...
Which version that I can test?
...
libvirtver="0.10.2"
version obsolete, current:
libvirtver="1.0.3" ## 03.13 (xen-4.x)
"minihowto make libvirt" update and available on
http://www2.fh-lausitz.de/launic/comp/xen/130305.xen.make.libvirt
Heiko