patch 8.0.0638: cannot build with new MSVC version commit https://github.com/vim/vim/commit/d7383881c8e9f474a909b54b21abb0aa2b412ba2 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 13 15:22:12 2017 +0200 patch 8.0.0638: cannot build with new MSVC version Problem: Cannot build with new MSVC version VS2017. Solution: Change the compiler arguments. (Leonardo Manera, closes https://github.com/vim/vim/issues/1731, closes #1747)

" Common preparations for running tests.

" Make sure 'runtimepath' and 'packpath' does not include $HOME.
set rtp=$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after
if has('packages')
  let &packpath = &rtp
endif

" Only when the +eval feature is present. 
if 1
  " Make sure $HOME does not get read or written.
  let $HOME = '/does/not/exist'
endif