> Say if the first bootstrap succeeds and I then change a single > GCC .c file and rerun make bootstrap, am I guaranteed to see > the same fallout of the change as I would if I did a pristine > build in a clean directory?
No, this would imply deleting the stage2 and stage3 compilers and that isn't what happens. Instead the compiler of each stage is updated in isolation. -- Eric Botcazou