anchor.diff:  :: this is set in wrapper script
   ::set EXIT_ON_ERROR=0
   IF %EXIT_ON_ERROR%.==. ( set EXIT_ON_ERROR=1)
  -IF %VERBOSE%.==. ( set VERBOSE=1)
  -
  -echo VERBOSE=%VERBOSE%
  +IF %TEST_VERBOSE%.==. ( set TEST_VERBOSE=1)
  +
  +echo TEST_VERBOSE=%TEST_VERBOSE%
   echo EXIT_ON_ERROR=%EXIT_ON_ERROR%
   
   :: if "/q" is given, hide the error dialogs (hence make the script non-interactive)
  
positive.code: @echo off
  
  rem set EXIT_ON_ERROR=0
  rem set VERBOSE=1
  rem cmd /k tools\selftester.bat /q > selftest_report.log 2>&1
  
  set MY_TOOLS_DIR=%~dp0
  
negative.code: ::########################[ FUNCTIONS ]##################################
  :check_binary
  setlocal
  if %TEST_VERBOSE% gtr 1 ( echo ":check_binary %1" )
  type NUL > tmp.log
  tools\otb_loader.exe %1 > tmp.log 2>&1
  call :nb_tmp_lines
  