Hello. Sorry to reply to my own post, I know that’s bad form, but thought it might be of use to let people know how I fixed this.
It appears that some MBWs no longer come with gcc installed – it was removed as part of the last firmware. So to run any of this stuff, you have to put it back first!
This is why I love open-source stuff… ‘cos step-by-step instructions which work perfectly to do this are here:
http://mybookworld.wikidot.com/forum/t-50241/tutorial:how-to-recover-gcc-after-firmware-2-00-15-upgrade
Hope that’s of use. My Makes are running right now 🙂