Unable to build tinylang with LLVM

[abidmalikwaterloo]

hello,

I am trying to build the tiny tool based on Chapter 2. I followed the book and also consult the github. However, I am getting the following:

CMake Error at cmake/modules/LLVMProcessSources.cmake:114 (message):
  Found unknown source file Driver.cpp

  Please update /home/amalik/LLVM/tinylang/tools/driver/CMakeLists.txt

Call Stack (most recent call first):
  cmake/modules/LLVMProcessSources.cmake:63 (llvm_check_source_file_list)
  cmake/modules/AddLLVM.cmake:867 (llvm_process_sources)
  /home/amalik/LLVM/tinylang/cmake/modules/AddTinylang.cmake:26 (add_llvm_executable)
  /home/amalik/LLVM/tinylang/cmake/modules/AddTinylang.cmake:30 (add_tinylang_executable)
  /home/amalik/LLVM/tinylang/tools/driver/CMakeLists.txt:3 (add_tinylang_tool)


CMake Error at /home/amalik/LLVM/tinylang/cmake/modules/AddTinylang.cmake:31 (install):
  install does not recognize sub-command TARGET
Call Stack (most recent call first):
  /home/amalik/LLVM/tinylang/tools/driver/CMakeLists.txt:3 

> (add_tinylang_tool)''

I am not sure where things are going wrong. Driver.cpp is there.