anchor.diff:  
   :create-msvs-files-failed
   echo Failed to create vc project files.
  -goto exit
  +exit /b 1
   
   :help
   echo vcbuild.bat [debug/release] [test/bench] [clean] [noprojgen] [nobuild] [x86/x64] [static/shared]
  
positive.code: @rem Build the sln with msbuild.
  :msbuild-found
  msbuild uv.sln /t:%target% /p:Configuration=%config% /p:Platform="%platform%" /clp:NoSummary;NoItemAndPropertyList;Verbosity=minimal /nologo
  if errorlevel 1 goto exit
  
  :run
  @rem Run tests if requested.
  
negative.code: :gyp_install_failed
  echo Failed to download gyp. Make sure you have git installed, or
  echo manually install gyp into %~dp0build\gyp.
  exit /b 1
  
  :have_gyp
  if not defined PYTHON set PYTHON="python"
  