I had that error as well a few months back. I installed via MacPorts to get that command ('port install truncate'). I also had to edit makefile.src to remove the following option flag, I think it was 'truncate -r ....' which I replaced with 'truncate'
I've had a few other stumblings compiling on a mac. Let me know if you run into anything else.
Yup, yup, yup, I see there is some new stuff in the makefile.src ( I forgot about that one.) There's a few more instances of truncate there then there used to be. I just updated my ports and sudo port install truncate also helped ( as I have truncate now). Also, sudo port install montage for make docq problem and all should be good.
thank you.
I was also wondering about build_fir7.py which should be in the a dumper directory, I just am not understanding which Dump, is it an IDA dump of canon firmware or is it a dump via firmware from my 7D?
JK