Folco (./21) :
The error is at the last line, it's about tools. I've looked at Makefile, but I don't know very well how these scripts work ...

I don't remember why this is reported, but this is not a real error. Forget it.

Folco (./22) :
But I can't see the asm files after having recompiled PedroM, even after having removed by hand ./c/*.o files, to force recompilation of C source files.

The *.asm files are not produced anymore by the toolchain.

Folco (./22) :
And I think that the clean command should delete ./c/*.o files ? No one is deleted. Normal behavior ?

Strange. It works for me.
Are you sure?