The GNU gcc compiler and the
associated tool chain have been used by
just about everyone that works on computers at one time or another. gcc
supports a multitude of platforms from the smallest hc11 to the largest
mainframe. But it can be tricky to
build cross-compilers, which is what most robot builders need. Dan
Kegel has put together an updated list of links and
tools that will make building cross-compilers easier. Like all GNU
tools, gcc is Free
Software licensed under the GNU GPL.
Well, I spoke a little too soon, they now have WinAVR GNUCC for Windows
based machines. Makes it really simple, just run the install program
and your pretty much done. Then ensure your environment variable is set
to the correct folder, and the Makefiles work then. You can get it via
the www.avrfreaks.net website.
But like usual still takes a month or more to get it to work for Linux.
If your lucky.
I built a gcc Linux to AVR cross-compiler for the computer at the DPRG
warehouse recently. It wasn't too bad and I used a lot of the same
scripts Kegel has now improved. The scripts were designed to help build
cross compilers for any platform, they'd just gotten quite out of date.
What Kegel did was update them to work with recent versions of the tool
chain. He only tested a couple of platforms like the PowerPC but his
fixes should make builds for any target a bit easier than they were.
Your like a big time expert on this though.
"Scripts" is plural, that means you need to find and edit a number of
scripts and then run them to get it to work. Miss one thing, one
directory or file permission seting and blooyie, it doesn't work.
I remember having to go and run CHMOD all over the place trying to get
it to work, it still didn't for me. I think I missed something more
obscure though. I suppose if I stick to it I might get it eventually.
Windows had it down to running one really big EXE and it did it all for
Of course I remember how much trouble it took to get Oracle to run on
my Linux box, I think I spent about a week messing with that.
Finally got all the directory and folder permissions set ( I think I
had to manually create all the directories before I installed it), and
then it installed and ran OK. I must have gave up too soon on AVR GNUCC.