Command line
- -d - it enables listing debug information to stderr.
- -g - force graphics mode
- -h, -?, --help - print hekp about commandline
- -i - print informations about detected hardware
- -k - debug keystrokes in graphics mode
- -s - print build configuration (settings file)
- -t - force text mode
- --debug=file - it saves debug information to file <file>