anchor.diff:  :: check input arguments
   if %1.==. (
     echo "No arch"
  +  call :Help
  +  goto :eof
  +)
  +
  +if %2.==. (
  +  echo "No project"
     call :Help
     goto :eof
   )
  
positive.code: copy C:\tools\Python35-%ARCH%\Scripts\clcache.exe C:\clcache\cl.exe
  set PATH=C:\clcache;%PATH%
  
  :: if we need to change cache max size: clcache -M <size-in-bytes>
  
  set IMAGE_NAME=windows-%SHORT_TARGET%-%ARCH%-vc%VCVER%
  
negative.code: call "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" %ARCH% %TARGET% -vcvars_ver=%VCVER%
  
  :: Setup Clcache
  set CLCACHE_DIR=C:\clcache\%PROJECT%-%ARCH%-%TARGET%-%VCVER%
  set CLCACHE_HARDLINK=1
  :: set CLCACHE_SERVER=1
  set CLCACHE_CL=
  