After not having updated samba for a few days, I did today, and found openchange won't build against a recent samba4 build.... The problem appears to be that dcerpc.h isn't installed any more. Some manual bisecting resulted in: a493bf9103e5a36e0aef0d1bf1a055f602955d0f is good 177ddcb084e8f8608bf2012a7c58f7b1e56d2acd is bad Was this intended? Brad