Hello,
I finally found out how to do this. My collegue has developped a IP in Vivado which I needed to integrate into LabVIEW FPGA VI's. We are using Vivado 2014.04, so the netlist of the IP has a *.dcp extension. In the same directory you should find the component declaration which has a *.vho extension. You should use the information in that file to create the wrapper. The wrapper will have a *.vhd extension and will be used with the *.dcp to create your CLIP. Basically the wrapper creates an instance of the component.
I've inserted an example:
SelfResonatingCore.vho
SelfResonatingCoreWrapper.vhd
Michel