Did you install the newly compiled driverless utility correctly into
your system?
Do
ls -l /usr/bin/driverless
ls -l /usr/lib/cups/driver/driverless
ls -l /usr/lib/cups/backend/driverless
Are all the three files the same or are there symlinks pointing to one
of the three files, so that independent which of the three you execute,
you execute the same file?
Please post the output of the three commands above.
Please also post the output of the following commands:
driverless
driverless list
SOFTWARE=CUPS driverless
They should all list your printer in some form. The second and the third
are they way how CUPS calls them.
Till