Fix Caffe2 Windows build by switching to ninja. (#24330)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24330
In principle, we should be able to use the MSVC generator
to do a Windows build, but with the latest build of our
Windows AMI, this is no longer possible. An in-depth
investigation about why this is no longer working should
occur in https://github.com/pytorch/pytorch/issues/24386
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24330
Test Plan: Imported from OSS
Differential Revision: D16828794
Pulled By: ezyang
fbshipit-source-id: fa826a8a6692d3b8d5252fce52fe823eb58169bf
