anchor.diff:  
   :PCC64
   echo Compiling with Pelles C (32bit)
  -set BUILD_1=cc /x /Tamd64-coff /O2 /std:C99
  +set BUILD_1=cc /Tamd64-coff /O2 /std:C99
   set BUILD_2=
   set BUILD_O=/o
   set BUILD_C=/c 
  
positive.code: :test
  cd test
  echo Start tests
  for %%f in (t_*.exe) do %%f
  echo ut_logassert.exe is expected to abort and return an error
  find "#KO:" l_*.log
  
  cd ..
  
negative.code: if "%1"=="PCC64" goto PCC64
  
  :usage
  echo Usage: build opt
  echo   compilers: MSC     Microsoft C    (VS2015)
  echo              PCC     Pelles C 32bit (8.0)
  echo              PCC64   Pelles C 64bit (8.0)
  echo    commands: clean   cleanup
  echo              test    run tests (no build)
  goto theend
  
  :clean
  