anchor.diff:  popd
   
   echo --- jsoncpp
  -git submodule add https://github.com/open-source-parsers/jsoncpp.git external/jsoncpp
  +git submodule add https://github.com/open-source-parsers/jsoncpp.git ./external/jsoncpp
   if /I "%ERRORLEVEL%" gtr "1" (
   exit /B %ERRORLEVEL%
   )
  
positive.code: popd
  
  echo --- curl
  git submodule add https://github.com/curl/curl.git external/curl
  if /I "%ERRORLEVEL%" gtr "1" (
  exit /B %ERRORLEVEL%
  )
  
negative.code: popd
  
  echo --- openssl
  git submodule add -b OpenSSL_1_1_0-stable https://github.com/openssl/openssl.git ./external/openssl
  if /I "%ERRORLEVEL%" gtr "1" (
  exit /B %ERRORLEVEL%
  )
  