@dankcushions That may have been why building libretro-mame (current) or 2016 would fail. Though any other build from source would; besides the broken ones complete successfully. I do have a working lr-mame2003-plus which took a long time. Also enabling the swap space is again simply the inverse operation of the aforementioned. It appears that this helper creates its own swapfile as well as enables it for use, disabling the dphys-swapfile will not interrupt this.