How do I add support for PIC12LF1822 to gputils
If you can't wait for that device to be added to gputils, and you don't want to use Windows, you could download the beta MPLAB X which runs under Linux and Mac OS. I just checked and it does support the 12F1822, so you could download it and extract the files you need. Or, use MPLAB X for your development, instead of gputils.