Is there any good CSG lib for runtime mesh modification ?

Hi all, I am looking for a library to do CSG (Construction Solid Geometry) at runtime, So far, my searches were not successful. I found either obsolete packages (BooleanRT) or editor-time packages (Sabre) or very uncomplete ( Net3dBool ). I am wondering if anybody is in the same case as me, if there is something available that fits the bill.

Any idea ?