How to build on Windows

[Kirill]

I have tried to build ATen.

and

CMake Error at src/ATen/CMakeLists.txt:407 (add_subdirectory):
add_subdirectory given source
"E:/ATen/aten/src/ATen/../../../third_party/cpuinfo" which is not an
existing directory.

CMake Error at src/ATen/CMakeLists.txt:412 (set_property):
set_property could not find TARGET cpuinfo. Perhaps it has not yet been
created.

CMake Error at src/ATen/CMakeLists.txt:423 (add_subdirectory):
add_subdirectory given source
"E:/ATen/aten/src/ATen/../../../third_party/sleef" which is not an existing
directory.

CMake Error at src/ATen/CMakeLists.txt:424 (set_property):
set_property could not find TARGET sleef. Perhaps it has not yet been
created.