IF NOT DEFINED CXXSTD ( ECHO %ARGS:"=% ..\..\..\b2 config_info_travis_install %ARGS:"=% config_info_travis del config_info_travis.exe ) IF DEFINED CXXSTD FOR %%A IN (%CXXSTD%) DO ( ECHO %ARGS:"=% ..\..\..\b2 -a -d2 config_info_travis_install %ARGS:"=% cxxstd=%%A config_info_travis del config_info_travis.exe )