anchor.diff:  mkdir build64_stage0
   cd build64_stage0
   REM Work around VS2017 bug by using MinSizeRel.
  -cmake -GNinja %cmake_flags% -DPYTHON_HOME=%python64_dir% -DCMAKE_BUILD_TYPE=MinSizeRel ..\llvm || exit /b
  +cmake -GNinja %cmake_flags% -DPYTHON_HOME=%python64_dir% -DPYTHON_EXECUTABLE=%python64_dir%\python.exe -DCMAKE_BUILD_TYPE=MinSizeRel ..\llvm || exit /b
   ninja all || ninja all || ninja all || exit /b
   ninja check || ninja check || ninja check || exit /b
   ninja check-clang || ninja check-clang || ninja check-clang || exit /b
  
positive.code: mkdir build32_stage0
  cd build32_stage0
  REM Work around VS2017 bug by using MinSizeRel.
  cmake -GNinja %cmake_flags% -DPYTHON_HOME=%python32_dir% -DCMAKE_BUILD_TYPE=MinSizeRel ..\llvm || exit /b
  ninja all || ninja all || ninja all || exit /b
  ninja check || ninja check || ninja check || exit /b
  ninja check-clang || ninja check-clang || ninja check-clang || exit /b
  
negative.code: cd build32
  set CC=..\build32_stage0\bin\clang-cl
  set CXX=..\build32_stage0\bin\clang-cl
  cmake -GNinja %cmake_flags% -DPYTHON_HOME=%python32_dir% -DPYTHON_EXECUTABLE=%python32_dir%\python.exe ..\llvm || exit /b
  ninja all || ninja all || ninja all || exit /b
  ninja check || ninja check || ninja check || exit /b
  ninja check-clang || ninja check-clang || ninja check-clang || exit /b
  