I had a same problem.
Follow my instructions in the starting as a developer topic.
This line is the key:
ARM_LIBC_A=../../../arm-toolchain462/arm-none-eabi/lib/libc.a
You should give a relative path.
Thanks Pelican, that worked!!
Now I can compile the autoexec.bin which I found under \platform\5D3.113
What are the steps to follow? Since this is not a release the steps are unclear and I do not want to brick my 5D3!
My guess is:
1. Copy the "5D3-113-bootflag.fir" and the "autoexec.bin" to the CF card. Does this card have to be 32Gig or less?
2. Get the ML directory (some where) and copy it to the card. Where do I get it? Can I use one of the old ones supplied with Alpha 2?
3. Install the card and turn camera on.
4. Rotate your mode dial to Manual (M) position
5. Restore your camera to default settings (Clear all camera settings)
6. Launch the Firmware Update process.
7. If all goes well you see the green confirmation screen, restart your camera. Done
I will wait to confirm these instructions before I do this.
Thanks in advance for all your help.
Renato