[Users] Kranc and MPI

Hello all

After trying to install kranc unsuccessfully, I tried a few things and eventually got an installation success message, but now when I go to build the Einstein Toolkit with the new thorns I get hit with an error about being "undefined reference MPI::Comm:Comm" in a few places in whichever thorn the ET is currently on while compiling, with removing a problematic thorn from the thornlist just postponing the error. From what I can find from some digging and looking, it seems to be a linking issue but I am lost after that.

Thanks, Nicholas Olsen