anchor.diff:   
      echo Making 64-bit glslang
      echo *************************
  -   mkdir build
      set GLSLANG_BUILD_DIR=%GLSLANG_DIR%\build
      cd %GLSLANG_BUILD_DIR%
   
  
positive.code: echo Creating and/or updating glslang, spirv-tools in %BASE_DIR%
  
  if %sync-glslang% equ 1 (
     if exist %GLSLANG_DIR% (
        rd /S /Q %GLSLANG_DIR%
     )
     if not exist %GLSLANG_DIR% (
        call:create_glslang
     )
  
negative.code:    cd  %SPIRV_TOOLS_DIR%
  
     REM Cleanup any old directories lying around.
     if not exist build32 (
         mkdir build32
     )
     if not exist build (
        mkdir build
     )
  
     echo Making 32-bit spirv-tools
     echo *************************
     set SPIRV_TOOLS_BUILD_DIR=%SPIRV_TOOLS_DIR%\build32
  
     cd %SPIRV_TOOLS_BUILD_DIR%
  